I bought this a few years back, this little programmer made us so much money we literally ran our shop for months on the money we got programming chips with it, its my absolute favorite.... Merry Christmas from Zimbabwe 🇿🇼🇿🇼🇿🇼🇿🇼🇿🇼
@Ruben Chris Some people will attempt to update the bios on their motherboard and it will fail making the board unusable and most people will say it can't be fixed / it's bricked. If you use one of these programmers you can clear and refresh the bios and bring the motherboard back to life. Example: I bought a Z490 motherboard for $20 because it had a bad bios. I flashed the bios with my programmer and the board works fine now. I resold it for $100.
Sorin, that is very well explained how programming, and that you need Ampere, to burn something and not volt, and one should not change anything about the CH341A programmer, people always tend to complain without knowing anything thank you Sorin Merry Christmas to you and your family too, from Belgium
I know you are a busy Man, so I will keep this short. You have helped me learn a new skill with reflash my Son's Legion. This video, and a previous one about how Lenovo BIOS can just bite the dust, made me bite the bullet and give it a go. I could not find a bin file to download, so erased the chip, reinstalled the original files and Bobs your Aunties sister it started up. Thank you Sir, this thing cost me over £1k and Lenovo would not help in the slightest and wanted £1,200+ to repair it (I could have purchased a brand new one for that price). I will be sending you some cash at the end of the month for all the help you have been. Thank you kindly Sir, I wish you and yours Health and Happiness.
You are absolutely right, Sorin. A couple of years ago I bought one complete SVOD3, but this one was my very first programmer (BIOS chips only, of course). I had never modified it in any way, and it does work perfectly. The worst thig is the chip clip; it is really bad. You are luck, man! It does work for you in the video!.
I agree, the clips are terrible... I've had 2 sets from AliExpress and one clip worked almost flawlessly on half a dozen PC motherboard BIOS chips and the second set of clips was virtually useless I threw it away as it simply couldn't stay on any chip. If you need to program a BIOS chip urgently then it might be a good idea to order at least 2 clips and hope that one of then is good.
i really needed to understand this programmer before using it since i never used one and i found no videos about how to use it rather than showing it i mean i need to know all about it before using it and someone really did this and im just gonna subscribe
I am 62 and lack the funds to purchase a Microscope as I am weak sighted, but enjoy your videos so much as it just proves that the world needs common sense. Example: My wife programmed process controllers without Grade 12 maths and science. I did computer science, but branched into commercial systems. She used Fortran and I Cobol. We now look back after more than 40 years and laugh at ourselves. I was thinking in paragraphs and she was thinking in arrays. I later bit the bullet and went to college to learn C and logic mainly to understand my wife.😇😁
I have a few things to say. 1. Sorin explained nicely in the video that the chip will not fry because the current is not high on the pins and that is correct. And that Programmer is beautifully designed and does its job.. 2. as far as CH341A modification is concerned, it is not a matter of higher voltage in chip frying, but in data transmission on that pin. 5V (4.82V) and 3V (3.28V) voltage injection affects the data transfer pin (read-write) It is known that voltage and frequency affect data transmission (Example: higher frequency affects data transmission, incomplete transferred content on the chip can occur), which also happened to me, but not always. So it's not about frying the chip, but a higher voltage on the data transfer pin. There is a lot to explain depending on the use of the Programmer and its connections, i.e. the resistance of the accessories (Examples: a clip with a longer cable or the length of the cable by connecting to the chip) 3. You don't need to modify CH341A works perfectly. If you decided to modify, in my opinion, the best way was modified by Georgdev. You can look at (eevblog.com-forum-repair-ch341a-serial-memory-programmer-power-supply-fix) with this modification, you regulate 3V and 5V on the switch. when it is put on 5V switch it is in factory condition.. Sorry for my bad english writing, Regards..
I have a question If I need to reprogram a Lenovo Bios Chipset, do I need to purchase any program/firmware in some scenario where the exact firmware is not available?
But, the chip seems to be lowering the voltage to 3.2V when it detects a chip that requires 3.2V. It means the programmer is smart enough to change its voltage (on data pins too) accordingly. Therefore, you do not have to modify the programmer.
Phenomenal explanation, I bought the same complete one but I was years behind in studying how to program it now, I am an amateur but you have to check the bios IC datasheet and the clamp or socket have specific positions because usually these products do not come with good manuals.
Just purchased the Programmer from Amazon to make it a little easier for me to program the chips. I do have the means to air unsolder the chips but hopefully with this programmer this will cut the soldering step. Great video..... 👍
Luckily I've read a post on Reddit saying that no modification is required. Btw I thought exactly the same: a manufacturer can make a bad design, but this programmer has been around for a very long time, it cannot be possible to have all these "faulty" boards around now. Thanks for using your brain. The Internet is a good source for information, but this is an example of why everything must always be checked and not trusted straight away, you don't know who's on the other side. Let me share a trick to get usb ports connected right the first time: the eyes of the port must look to the sky. That's how it's easy to remember for me 😅
A great little programmer, the only two issues are speed (it’s a little slow) and the black peg/clamp is terrible. The pin are so hard to line up and get a good connection. I ended up buying the blue pegs which worked so much better! I have bought a faster (more expensive) version to speed things up. But the one you tested is a great device.
I have used this with success and have never modified it, as the seller from Alpress told me that no need to modify. I even sent him link which said it had to be modified. His answer was they have sold so many and no need. Trust me friend, he said lol. Good one and have a very happy festive seasons.
Very informative! A non-low knowlege about ch341a programmer original voltage functions and behavior. Ty sir for sharing this knowlegeable video. God bless your household.
Wow, this is what I call an electronic class. Thank you, so much. I'm trying to restore a Steam Deck, and my gut says the problem is in the BIOS microchip. I connected the CH341a on it and it didn´t recognize it. Later on I discovered that the chip runs in 1,8v and I tried without the adapter. I was afraid I had burnt the microchip. Now I understand that this can't happen. Good thing is that I didn't read or write anything on the chip because it didn't recognize it. Now I'm waiting for the 1,8v adapter to come, and I'll test again. Hopefully, it will be recognized.
I can also confirm this. Used the black programmer to rewrite a 3.3V BIOS chip, actually twice (first with a wrong ROM, then with a working one). Everything went fine, the laptop works properly after that. Nothing burnt or got damaged. So no, you DONT need to modify the CHF341A programmer.
My boss bought one of this for us to use in the shop when we were just getting our feet wet with programming SPI chips and such - it paid for itself tenfold ! Soon we were fixing laptops and TVs with corrupted firwmare like there was no tomorrow.....and I never ONCE even thought about the voltage it used :))) It just worked :)) Ok, I never went as far as to program a 1.8v chip with it, but aside from those, 3.3v and 5v chips worked perfectly fine and to be fair, for a good while, I just assumed they ALL chips ran at 5v, until I looked at the datasheet for a 3.3v chip more carefully and had a "whoops" moment, realizing I've been pumping 5v into them for years on end :))) That's when I knew they can take it without a problem :)
I've tested it my self - especially I've bought a 1,8v adapter. The programmer software says "Chip not responding" - in 1.8 adapter, but same chip in same adapter works ok straight in CH341a, so what was the point to buy a voltage converter?
Happy Christmas Sorin and Diana. Thank you for sharing your skills and experience. One hand washes the other, so one day, i will be able to repay you. Have a brilliant xmas with plenty of laughs, warmth and satisfaction that 100's of thousands of people are happier thanks to your videos. Cheers 🍻 🍷!
Where do we get the software for it from? Could you please add Google Drive link so we can use the same software? - I'm currently using *NeoProgrammer* but it keeps crashing and nor always successful when writing to IC. - Thanks in advance.
Sorin. When the BIOS is flashed, the serial number of the machine is lost or replaced with another incorrect one. There is a procedure for writing the serial number in the bios file.
You are dead right! (electronic engineer). I already had one and I modded it as I was advised to. Damned thing just did not work at all. Reversed the mod and it started working!! The mod I did did nothing with pin 9. Pin 9 is the output of an internal LDO 3.3V regulator. So if you supply VCC with 3.3V this LDO reg has an output possibly below a critical value for function. The datasheet for the CH341A chip says to short pin 9 to VCC if used in this way. It is designed to work with 5V. I admit it is a bit unusual to design an IC with voltages above recommended maximums for programmable devices but the designers knew what they were doing.
The "Mod" refers to using the programmer for automotive stuff that requires 5v instead of c.a 3v in order to work. Modding them allows you to read/write 5v stuff. Hence "no need" to mod for laptop use - but need to mod for automotive use.
I am using it for a few years, and it is pretty cool tool for that money... But i had few issues with motherboards which have Bios + embedded controller (EC). After flashing both flash files, laptop couldnt turn on ok. I did backup before flashing, and after i restored backup, it booted up. I think there may be some special procedure when flashing these dual chip motherboards. Any explanations !?
Everytime i connect it to the bios chip i get the usb disconnect sound in Windows. I did everything right and the 3.3V fix but i dont understand what i am doing wrong.
Nice instructions for CH341A. I have 2 chips on the board, it's dual bios, but the firmware file is just one. How to do it via USB programmer CH341A? well thank you
That means your motherboard has a backup bios chip if the first one fails or gets corrupted it will copy the contents from the good backup to the bad one and if your bios is still corrupted that means both of the chips are corrupted and you have to reprogram both
I am absolutely new to bios chip rewrite but I have heard that we should always remove the cmos battery. Is that true? Thank you Sorin. Love your videos.
TL866II+ is the cheaper one the works without issues and there are monthly software upadates ... I use this one only as a COM interface to program seagate disk paramaters ( smart etc etc )
That little programmer repair me frozen bios on Lenovo G50 80 with Intel I5 processor which I sell later for 300€. Still use HP NC 6320 which had power on password for car diagnosis. Neat little programmer. I read and write everything with clip, no soldering.
It is not valid to read voltage with a multimeter during programming. This is measuring the average voltage (including zeros) not the peak voltage. I know a lot of people who insist they have fried flash chips without the mod. I am wondering though, if there are different versions of the CH341A which have different output current limits? It is common for people to not connect the VCC line to the flash and to not power the target board for ISP. And they successfully program the device. In this case the entire chip will be powered by protection diodes on the input pins. It will need something like 20mA or more to successfully burn a flash, in which case the current from the data lines must be a lot greater than 1mA. Such currents at high voltages could fry a chip. I also disagree that it is current that blows up chips. It is power = voltage*current. Whilst a diode normally has about 0.7V across it this can vary considerably as the current through the protection diode changes. All they need to do to ensure protection is put current limiting diodes in the data lines. It is running at low speed
I really enjoy watching your videos, they are full of very useful information. Unfortunately, you did not show how to use a 1.8V adapter in this video. I need to flash my laptop's bios, I've never done this before and I don't want to screw anything up. It's a Lenovo ThinkPad A485, there should be a 1.8V chip. Can you please make a video on how to use the 1.8V adapter? Thank you
I looked up my Bios chip for "max ratings" and it says 4.7V Peak only and Reg V way lower SO, the little programmer outputs all 5V unless you mod it down to 3V and the specs for it says it can do that so i will me doing mod as old bios chips only meant to get 3.3v on its lines and you can install a switch to toggle from 3.3 to 5 as well. Max rating are VERY critical as i once accidentally touched the 19V pin to the LDV pin and it sent 19V into that line of the BQ chip and then the the chip only pulsed voltage and nothing worked. Looked up the max rating for that pin and it was only 7V, so you can see "guessing" that 5V wont hurt a 3.3V bios chip MAYBE you get away with it or not, too risky. Volts is pressure so even if the signal lines wont have any amps on it, they tell you what pressure it can stand too and exceed that and you compromise the chip.
Great, I needed this on a bios for an old laptop that's a paper weight and its bios has been corrupted for years, I will try it, very informative piece here Sorin. watch your youtube channel all the time and never miss an episode. Greetings form an old Romanian from Sydney Australia that left Romania in 1960, I was born in Petroşani and still can speak a little Romanian, but I forgot how to write, so sorry that I can't write to you in Romanian as using google translate is just not on, keep the great work up but please stop the bogginess 😁😁😁 with not replacing capacitors 😁😁😁👍👍👍
Do I need to install the CH341 Drivers included in the AsProgrammer ZIP file? Which one should I install, the Parallel one, or the Serial one, or both?
Particularly on certain laptops (HP), when the programmer supplies power to the BIOS when still on the board the MB may try to initiate a startup. Of course the USB power source isn't nearly sufficient enough so the programmer can't communicate.
@@SerenoOunce You made a great point. When I connected the clips to an older MSI Z170 Gaming M7 motherboard that has a Power button it, the power button green LEDs suddenly turned on once I connected the clips to the Bios chip!! I'm a noob when it comes to electronics but I was a little confused when it happened. So what's going on? Is the programmer somehow giving enough power to the BIOS chip and it somehow spreads out to other parts of the motherboard?
I tried this exact method, verbatim, to read a MX25L3206E BIOS chip, using the same exact programmer, ribbon connector and orientation etc. It detected the right device, and even partially read the data, but stopped after only reading 6% of its contents. I disagree that it's impossible to kill the chip with 5v, because after this attempt, the supply is now being shorted to ground through the chip. Prior to detecting the device, the default supply was 5v.I think the safest method is to prevent the 5v completely, when reading or writing to MX25Lxxx, but obviously not for all EEPROMSs!
HAPPY CHRISTMAS to you and your Family SORINand i have also got the same programmer and found no Problem with it but thanks for the video as it confirmed my findings
I bought this a few years back, this little programmer made us so much money we literally ran our shop for months on the money we got programming chips with it, its my absolute favorite.... Merry Christmas from Zimbabwe 🇿🇼🇿🇼🇿🇼🇿🇼🇿🇼
From where u get the software for the chip
@@abdallahharfoush9449 techpowerup i suppose
how is this profitable
@Ruben Chris Some people will attempt to update the bios on their motherboard and it will fail making the board unusable and most people will say it can't be fixed / it's bricked. If you use one of these programmers you can clear and refresh the bios and bring the motherboard back to life.
Example: I bought a Z490 motherboard for $20 because it had a bad bios. I flashed the bios with my programmer and the board works fine now. I resold it for $100.
Bios also gets corrupted by it's own many times
I never had problems using this programmer as it comes without modifiying anythink in it. Thanks for the video.
I need the program for this device please, I want to use the peripheral
Sorin, that is very well explained how programming, and that you need Ampere, to burn something and not volt, and one should not change anything about the CH341A programmer, people always tend to complain without knowing anything thank you Sorin Merry Christmas to you and your family too, from Belgium
I know you are a busy Man, so I will keep this short. You have helped me learn a new skill with reflash my Son's Legion. This video, and a previous one about how Lenovo BIOS can just bite the dust, made me bite the bullet and give it a go. I could not find a bin file to download, so erased the chip, reinstalled the original files and Bobs your Aunties sister it started up. Thank you Sir, this thing cost me over £1k and Lenovo would not help in the slightest and wanted £1,200+ to repair it (I could have purchased a brand new one for that price).
I will be sending you some cash at the end of the month for all the help you have been. Thank you kindly Sir, I wish you and yours Health and Happiness.
You are absolutely right, Sorin. A couple of years ago I bought one complete SVOD3, but this one was my very first programmer (BIOS chips only, of course). I had never modified it in any way, and it does work perfectly. The worst thig is the chip clip; it is really bad. You are luck, man! It does work for you in the video!.
I agree, the clips are terrible... I've had 2 sets from AliExpress and one clip worked almost flawlessly on half a dozen PC motherboard BIOS chips and the second set of clips was virtually useless I threw it away as it simply couldn't stay on any chip. If you need to program a BIOS chip urgently then it might be a good idea to order at least 2 clips and hope that one of then is good.
i really needed to understand this programmer before using it since i never used one and i found no videos about how to use it rather than showing it i mean i need to know all about it before using it and someone really did this and im just gonna subscribe
I am 62 and lack the funds to purchase a Microscope as I am weak sighted, but enjoy your videos so much as it just proves that the world needs common sense.
Example: My wife programmed process controllers without Grade 12 maths and science. I did computer science, but branched into commercial systems. She used Fortran and I Cobol. We now look back after more than 40 years and laugh at ourselves. I was thinking in paragraphs and she was thinking in arrays. I later bit the bullet and went to college to learn C and logic mainly to understand my wife.😇😁
Badass couple
PL Kobiety i tak nie zrozumiesz, na pewno C i logika to zbyt mało. Ale ona chyba dobrze Ciebie rozpracowała? Jak uważasz?
I have a few things to say.
1. Sorin explained nicely in the video that the chip will not fry because the current is not high on the pins and that is correct.
And that Programmer is beautifully designed and does its job..
2. as far as CH341A modification is concerned, it is not a matter of higher voltage in chip frying, but in data transmission on that pin.
5V (4.82V) and 3V (3.28V) voltage injection affects the data transfer pin (read-write)
It is known that voltage and frequency affect data transmission (Example: higher frequency affects data transmission, incomplete transferred content on the chip can occur), which also happened to me, but not always.
So it's not about frying the chip, but a higher voltage on the data transfer pin.
There is a lot to explain depending on the use of the Programmer and its connections, i.e. the resistance of the accessories (Examples: a clip with a longer cable or the length of the cable by connecting to the chip)
3. You don't need to modify CH341A works perfectly.
If you decided to modify, in my opinion, the best way was modified by Georgdev. You can look at (eevblog.com-forum-repair-ch341a-serial-memory-programmer-power-supply-fix)
with this modification, you regulate 3V and 5V on the switch.
when it is put on 5V switch it is in factory condition..
Sorry for my bad english writing, Regards..
I have a question
If I need to reprogram a Lenovo Bios Chipset, do I need to purchase any program/firmware in some scenario where the exact firmware is not available?
But, the chip seems to be lowering the voltage to 3.2V when it detects a chip that requires 3.2V. It means the programmer is smart enough to change its voltage (on data pins too) accordingly. Therefore, you do not have to modify the programmer.
Finally !!!! Waited for you to step out and say this to all their faces!!!!!!!! Learn electronics and love electronics allways
So happy and grateful you managet to get the channel and videos back.
Glad to see you are back up and running Sorin. I was starting to get worried. A lot of people were missing you.
Hi Sorin! I'm so happy to see that everything is back to normal!
"Hello! We are back"... Really!!! 🍾🍾🍾 Welcome back Sorin!! Happy to see you again!
Sorin.... you are big!
Thank you for the lots of videos with good sense and a lot of experience...
Greetings from Portugal 🇵🇹
Phenomenal explanation, I bought the same complete one but I was years behind in studying how to program it now, I am an amateur but you have to check the bios IC datasheet and the clamp or socket have specific positions because usually these products do not come with good manuals.
good to see this channel is back, you've been scaring me for the last 3 days :D
Just purchased the Programmer from Amazon to make it a little easier for me to program the chips.
I do have the means to air unsolder the chips but hopefully with this programmer this will cut the soldering step.
Great video.....
👍
Thanks Sorin for making that clear. seasons greetings to you and your family.
Great to see this channel back up!
Have a great Christmas Sorin and thanks again for the all the great videos you put out.
Merry Christmas, we need a real expert like you Sorin to clear the confusions on our community
תודה!
Great to have you back Sorin!
Ya..🙌 channel is back.. so glad to see you again Sorin 😃👏..
Another great video Sorin! God bless you and your Family!
Thanks for this video. Im a lot more confident after watching.
Luckily I've read a post on Reddit saying that no modification is required. Btw I thought exactly the same: a manufacturer can make a bad design, but this programmer has been around for a very long time, it cannot be possible to have all these "faulty" boards around now.
Thanks for using your brain. The Internet is a good source for information, but this is an example of why everything must always be checked and not trusted straight away, you don't know who's on the other side.
Let me share a trick to get usb ports connected right the first time: the eyes of the port must look to the sky. That's how it's easy to remember for me 😅
hi sorin, were happy your channel is back...
A great little programmer, the only two issues are speed (it’s a little slow) and the black peg/clamp is terrible. The pin are so hard to line up and get a good connection. I ended up buying the blue pegs which worked so much better! I have bought a faster (more expensive) version to speed things up. But the one you tested is a great device.
Could you post a link for the blue pegs?
what pegs are you talking about?
I have this programmer with green pcb...is very good! With neo programmer v2.xx is excellent tools. Programming avr processor...arduino and other !
I have used this with success and have never modified it, as the seller from Alpress told me that no need to modify. I even sent him link which said it had to be modified. His answer was they have sold so many and no need. Trust me friend, he said lol. Good one and have a very happy festive seasons.
Very informative! A non-low knowlege about ch341a programmer original voltage functions and behavior. Ty sir for sharing this knowlegeable video. God bless your household.
Thank you just got mine today and i didn't change anything and i will use it the same way you just did :D
Merry Christmas my friend, big hug, love your videos.
I also brought one of those. In the old times everything was harder. Now so cheap.
Thank you a lot for this videos evrey time we learning new things from you 💪👍
Wow, this is what I call an electronic class. Thank you, so much.
I'm trying to restore a Steam Deck, and my gut says the problem is in the BIOS microchip. I connected the CH341a on it and it didn´t recognize it. Later on I discovered that the chip runs in 1,8v and I tried without the adapter. I was afraid I had burnt the microchip. Now I understand that this can't happen.
Good thing is that I didn't read or write anything on the chip because it didn't recognize it. Now I'm waiting for the 1,8v adapter to come, and I'll test again. Hopefully, it will be recognized.
Did it work ?
I thought the regulator only switched between 5V and 3.3V and nothing else?
glad to see the channel is back hope you are well Sorin 🥰
you are a good dude not full of crap there arent to many good guys like you bro luv ya man keep on teaching you are good bro
thanks for posting all this year and merry Christmas Soring to you and Diane :)
Very good video thanks Sorin Have a happy Christmas to you and your family
I can also confirm this. Used the black programmer to rewrite a 3.3V BIOS chip, actually twice (first with a wrong ROM, then with a working one). Everything went fine, the laptop works properly after that. Nothing burnt or got damaged. So no, you DONT need to modify the CHF341A programmer.
What programming software are you using? I'm new to EEPROM programming and I like that interface a lot.
My boss bought one of this for us to use in the shop when we were just getting our feet wet with programming SPI chips and such - it paid for itself tenfold ! Soon we were fixing laptops and TVs with corrupted firwmare like there was no tomorrow.....and I never ONCE even thought about the voltage it used :))) It just worked :)) Ok, I never went as far as to program a 1.8v chip with it, but aside from those, 3.3v and 5v chips worked perfectly fine and to be fair, for a good while, I just assumed they ALL chips ran at 5v, until I looked at the datasheet for a 3.3v chip more carefully and had a "whoops" moment, realizing I've been pumping 5v into them for years on end :))) That's when I knew they can take it without a problem :)
I've tested it my self - especially I've bought a 1,8v adapter. The programmer software says "Chip not responding" - in 1.8 adapter, but same chip in same adapter works ok straight in CH341a, so what was the point to buy a voltage converter?
Happy Christmas Sorin and Diana. Thank you for sharing your skills and experience. One hand washes the other, so one day, i will be able to repay you. Have a brilliant xmas with plenty of laughs, warmth and satisfaction that 100's of thousands of people are happier thanks to your videos. Cheers 🍻 🍷!
dear Sorin, could you please update the description of the video with a link to the software you're using for programming that EEPROM please?
Where do we get the software for it from? Could you please add Google Drive link so we can use the same software? - I'm currently using *NeoProgrammer* but it keeps crashing and nor always successful when writing to IC. - Thanks in advance.
Sorin. When the BIOS is flashed, the serial number of the machine is lost or replaced with another incorrect one. There is a procedure for writing the serial number in the bios file.
You are dead right! (electronic engineer). I already had one and I modded it as I was advised to. Damned thing just did not work at all. Reversed the mod and it started working!! The mod I did did nothing with pin 9. Pin 9 is the output of an internal LDO 3.3V regulator. So if you supply VCC with 3.3V this LDO reg has an output possibly below a critical value for function. The datasheet for the CH341A chip says to short pin 9 to VCC if used in this way. It is designed to work with 5V. I admit it is a bit unusual to design an IC with voltages above recommended maximums for programmable devices but the designers knew what they were doing.
Hi Sorin. Can you send me a link to download the program for CH341A . Thank you for your time
I learned something new in my life, thank you :)
The "Mod" refers to using the programmer for automotive stuff that requires 5v instead of c.a 3v in order to work. Modding them allows you to read/write 5v stuff. Hence "no need" to mod for laptop use - but need to mod for automotive use.
nice to see you again man
I am using it for a few years, and it is pretty cool tool for that money... But i had few issues with motherboards which have Bios + embedded controller (EC). After flashing both flash files, laptop couldnt turn on ok. I did backup before flashing, and after i restored backup, it booted up. I think there may be some special procedure when flashing these dual chip motherboards. Any explanations !?
EC needs to be flashed to the PCH/superIO to match the revision applied to the BIOS chip.
It's in a previous video.
@@incandescentwithrage Thanks, mate, I appreciate it!
Ah.... Chanel is back... good to see you sorin... Don’t Scare us again
Wishing you and your family a very Happy Christmas.
soldering a 10v 470uf capacitor from GND to VCC fixed my problem. now the clip works flawlessly.... previously my test clip was not working.
Happy cleared review, happy Christmas in advance ♥️
Everytime i connect it to the bios chip i get the usb disconnect sound in Windows. I did everything right and the 3.3V fix but i dont understand what i am doing wrong.
YOU ARE THE ONE SIR...LOVE FROM INDIA
First time watcher. Liked and subscribed. I like your manner of teaching.
Happy Nativity Sorin🙏🧡💚
Nice instructions for CH341A. I have 2 chips on the board, it's dual bios, but the firmware file is just one. How to do it via USB programmer CH341A? well thank you
That means your motherboard has a backup bios chip if the first one fails or gets corrupted it will copy the contents from the good backup to the bad one and if your bios is still corrupted that means both of the chips are corrupted and you have to reprogram both
I am absolutely new to bios chip rewrite but I have heard that we should always remove the cmos battery. Is that true? Thank you Sorin. Love your videos.
Good luck sir 🎉
TL866II+ is the cheaper one the works without issues and there are monthly software upadates ... I use this one only as a COM interface to program seagate disk paramaters ( smart etc etc )
Welcome back ❤️💙
5:05 Actually you can burn a CMOS transistor with a static electricity, which is just the high voltage.
But tnx for every video who you make i learn from you a lot
That little programmer repair me frozen bios on Lenovo G50 80 with Intel I5 processor which I sell later for 300€. Still use HP NC 6320 which had power on password for car diagnosis. Neat little programmer. I read and write everything with clip, no soldering.
What software did u use to program and how did u extract the bios capsule I never got far into repairing my laptop
It is not valid to read voltage with a multimeter during programming. This is measuring the average voltage (including zeros) not the peak voltage. I know a lot of people who insist they have fried flash chips without the mod. I am wondering though, if there are different versions of the CH341A which have different output current limits? It is common for people to not connect the VCC line to the flash and to not power the target board for ISP. And they successfully program the device. In this case the entire chip will be powered by protection diodes on the input pins. It will need something like 20mA or more to successfully burn a flash, in which case the current from the data lines must be a lot greater than 1mA. Such currents at high voltages could fry a chip. I also disagree that it is current that blows up chips. It is power = voltage*current. Whilst a diode normally has about 0.7V across it this can vary considerably as the current through the protection diode changes. All they need to do to ensure protection is put current limiting diodes in the data lines. It is running at low speed
which one did you buy?
and finally ordered. Many thanks
What program you using? I hit the wall with mine... i have 1.3 which is looks difrent than what you show
Mrs. Sorin pin number 1 red wire should connect it on the gate ??
Super useful video, thank you very much!
I really enjoy watching your videos, they are full of very useful information. Unfortunately, you did not show how to use a 1.8V adapter in this video. I need to flash my laptop's bios, I've never done this before and I don't want to screw anything up. It's a Lenovo ThinkPad A485, there should be a 1.8V chip. Can you please make a video on how to use the 1.8V adapter? Thank you
You dont need a whole video to use the 1.8v adapter, you just have to aling pin 1 of the adapter with pin 1 of the programmer, its not that hard
What is the name of the software you use for it my own didn't come with software
Your a living legend
Merry Christmas and Happy New Year to all
Nice wish you a happy and Merry Christmas sir
Sir, thanks for this video
I want to ask, what happens when the bios chip is not detected and it didn't burn?
Merry christmas sorin 🎉
hi sir. what is voltage jomper duty ? i mean , in what condition should they be , 5 or 3.3? tanx.
I looked up my Bios chip for "max ratings" and it says 4.7V Peak only and Reg V way lower SO, the little programmer outputs all 5V unless you mod it down to 3V and the specs for it says it can do that so i will me doing mod as old bios chips only meant to get 3.3v on its lines and you can install a switch to toggle from 3.3 to 5 as well. Max rating are VERY critical as i once accidentally touched the 19V pin to the LDV pin and it sent 19V into that line of the BQ chip and then the the chip only pulsed voltage and nothing worked. Looked up the max rating for that pin and it was only 7V, so you can see "guessing" that 5V wont hurt a 3.3V bios chip MAYBE you get away with it or not, too risky. Volts is pressure so even if the signal lines wont have any amps on it, they tell you what pressure it can stand too and exceed that and you compromise the chip.
Great video thanks merry Christmas
Great, I needed this on a bios for an old laptop that's a paper weight and its bios has been corrupted for years, I will try it, very informative piece here Sorin. watch your youtube channel all the time and never miss an episode. Greetings form an old Romanian from Sydney Australia that left Romania in 1960, I was born in Petroşani and still can speak a little Romanian, but I forgot how to write, so sorry that I can't write to you in Romanian as using google translate is just not on, keep the great work up but please stop the bogginess 😁😁😁 with not replacing capacitors 😁😁😁👍👍👍
Do I need to install the CH341 Drivers included in the AsProgrammer ZIP file? Which one should I install, the Parallel one, or the Serial one, or both?
great information do you have a link for the software your using..
Nice tutorial. I prefer desolder bios chip always. The programming bios chip when is soldered sometimes goes wrong :(
This is what I do. The clip does not do proper connection most of the time.
Particularly on certain laptops (HP), when the programmer supplies power to the BIOS when still on the board the MB may try to initiate a startup. Of course the USB power source isn't nearly sufficient enough so the programmer can't communicate.
@@SerenoOunce You made a great point. When I connected the clips to an older MSI Z170 Gaming M7 motherboard that has a Power button it, the power button green LEDs suddenly turned on once I connected the clips to the Bios chip!!
I'm a noob when it comes to electronics but I was a little confused when it happened. So what's going on? Is the programmer somehow giving enough power to the BIOS chip and it somehow spreads out to other parts of the motherboard?
Where can I buy the whole chips set up so I can just reprogram a bio chip on the motherboard with the ribbon band and the connection and everything
awesome video. thanks for the explaination
So happy right now👏🥳🥳🥳🥳
عاوز اعرف الاطراف دي في المبرمجه GND-VCC-SDA-SCl
is it possible to use CH341A for programming a BIOS chip that has a PLCC32 socket?
Can you please provide a link for the programmer software that you are using in this video?
you are a boss, sir. thank you
I tried this exact method, verbatim, to read a MX25L3206E BIOS chip, using the same exact programmer, ribbon connector and orientation etc. It detected the right device, and even partially read the data, but stopped after only reading 6% of its contents. I disagree that it's impossible to kill the chip with 5v, because after this attempt, the supply is now being shorted to ground through the chip. Prior to detecting the device, the default supply was 5v.I think the safest method is to prevent the 5v completely, when reading or writing to MX25Lxxx, but obviously not for all EEPROMSs!
Is the ch341B any different from the ch341A?
HAPPY CHRISTMAS to you and your Family SORINand i have also got the same programmer and found no Problem with it but thanks for the video as it confirmed my findings
What about 16 pin chips? Is there a 16 pin clamp that works with this, or only if I solder the chip directly onto the back of the programmer?
SPI-NAND chips will not work with 5V data pin levels. SPI-NOR should be fine.