Happy New Year The orange charge light , denotes the battery is very run down, when it takes 3 hours to full charge, when about 1/4 charge battery symble changes to blue..
They will not boot if the battery icon is still Red. Once Blue it will boot but they are notoriously slow if they have been dead flat. It was nothing to do with the metal shield. Quite frankly I don't mess about changing chips I just buy cracked screen units off Ebay (as long as they show some life) and change the mainboards. My fingers have no feeling and changing soldered chips is now beyond my physical capabilities. To be fair they are a very resilient unit and probably one of the best performing tablets, still!
Regarding your eyes and glasses I am the same. But a great Optometrist told me to exercise my eyes more as I work with computers 8-10 hours a day i.e. Fully focus on something in the distance and then something close 10 times every few hours. My eyes are about 30-40% better and sometimes forget to wear my reading glasses.
Anyway to bypass the chip till run it from the 5-volt DC mains input? I note most of the board seems to be well under 3 volts I see jumpers for phones on youtube but just wondering if it could be done for these tablets?
Your glasses are fine, it's not always an age thing, some children have them. My close up vision is getting blurred, i don't think that's too bad for 51 year old eyes :-)
My original chip is a Texas instruments BQ 24296 / TI 461 / C7VX I've purchased a replacement, but only noticed its actually a BQ 24296M / 7C8 / AFDE chip. I've looked at the manufacturer data sheet. Both have the same chip fitment, however there's a slight difference with the original showing two connections for USB PHY and the new M chip only shows one connection for PHY. Is this new chip any good still? Or does it have to be exactly like for like??
Thank you for your awesome video. This got me into a question: Inductors from power supplies have the output or the input voltage on their coil endings?
Congratulation on your another successful job and also video. How did you know that a particular IC is IC charger?( There can be so many different IC that works as a battery charger that are used by different manufacturers). Do you have any trick? Thanks
I have a hudle here. It prompts to boot when you put usb charge cable in. But no charge on screen. I’ve followed your steps etc. And multimeter is beeping on same caps in continuity you’ve measured for volts. Will replacing charge ic fix this? Thanks for any help.
Thank you very much for learning us..i am learning repair electronics from your channel all thanks for you...i started testing voltage on laptop motherboard today according to what i understand from your videos. i put negative of multimeter on ground and positive on the two mosfets and i get 19v so i start to put the positive on other parts to test voltage (fool me) suddenly something get wrong ther was a spark and i smell like plastic burn and the laptop wont work now dose not even start...there is light the charging is ok but the laptop wont start even the fan dose not have power.of course the laptop was working fine before this..please help..i tried to learn on my laptop motherboard becase i dont have any other board to practice on and i love electronics..please forgive me for taking so long...thanks for your great teach and job
how do you read the circuit boards and follow their rails because the rails go in all directions also how do you know the input and outputs please explain thank you
Can You tell me if the battery is fully charged but this chip is broken does the tablet turn on or not? My hudl is dead and i thought this may be the mainboard but after this video i am not sure.
I have the same problem with the charging of my Hudl 2 and after replacing the charging port board and it making no difference I wired a cable directly to the battery and connected a 5v 2A charger to it and it charges fine in a few hours.However I don't like my solution because lithium batteries should be treated with care and a cable hanging out of the side of the tablet isn't a great idea. I want to try your solution of replacing the charging chip - do you perhaps have it's identification part number please? Great video!
i know this was a while ago but by chance do you remember the batteries chip number as i have 2 hudls with the same problems ive replaced their ports so it isnt that and the batteries hold charge
I suspect i've got the same failure too - The part number on the chip in my Hudl 2 is Texas Instruments BQ24296. These seem to be readily available on ebay. I've just ordered one to see if this solves the problem.
Can be this common fault in other tablets? for example chines tablets, because I have one, it didn't coming on and the charging sign not appear when I plug the charger in, so it's maybe the ic charger was gone? Please reply.
Sir, I brought a linear power supply MAISHENG MS-305D, but i see/notice you increase the current while charging a battary, but for my DC power Supply, i cannot increase current when charging the battery (is there some i can do to increase current?). THANK YOU
Yes, i have four Knobs two for voltage (fine and coarse) and the other two for current (fine and coarse). but when i connect a laptop battery or phone battery, i can increase the voltage but the current will not increase, if i rotate the knob. If i connect transistor or other components i can increase the current upto 5A. is there i solution to that with battery?
Electronics repair school Thanks for the video ,but have a hudle2 that takes a charge (1.85amps) but Will not power up nor show a charging light.Swapped a known good battery and replaced the charge chip featured in your tutorial.The fact that it takes a charge surely eliminates the charge port pcb as faulty? Any ideas would be welcome.
I've got a Hudl 2 with everything working but the mic does not work it works if I plug in a headset but the mic does not work on the Hudl 2 what do I do ?
I've seen advice given to poke something in the reset hole of the Hudl, unfortunately only the Hudl 1 has a reset hole, some people have poked the mic hole instead on the Hudl2 by mistake.
It was the charging control chip on the mainboard. Once that fails it will not charge nor will it boot up since it also controls the power output to the mainboard. After the charging board it is the most common failure on these tablets.
Steven Booth I have a hudl that comes on with usb cable. Prompt to boot. But on screen there is no sign of charging. Will chip replacement fix this? Thanks for any help.
i have 3 pair glasses, 1 is far, 1 is close, (seeing close small things, and lighted magna-glasses as i don't have the microscope) far is reading computer screen hahaha don't feel alone
Electronics repair school Could you please explain how shorting the data lines would show you what exactly? Sorry if this is a ignorant question but I have watched all your videos and this is the first thing I don't understand.... Thanks for your great work and opening me up to faster repairs without schematics...
Don't worry about wearing your glasses. Do you realise that most of the geeks watching this video have been doing so much closeup work that they will be wearing glasses too :-)
Hallo ich bewundere dein Wissen und sein können Du bist der beste , ich bin süchtig nach deinen Videos................nicht aufhören
always a pleasure to watch !
Happy New Year The orange charge light , denotes the battery is very run down, when it takes 3 hours to full charge, when about 1/4 charge battery symble changes to blue..
They will not boot if the battery icon is still Red. Once Blue it will boot but they are notoriously slow if they have been dead flat. It was nothing to do with the metal shield. Quite frankly I don't mess about changing chips I just buy cracked screen units off Ebay (as long as they show some life) and change the mainboards. My fingers have no feeling and changing soldered chips is now beyond my physical capabilities. To be fair they are a very resilient unit and probably one of the best performing tablets, still!
Can you explain why you bridge data line? And what else can be found doing this? Thanks. Lee
Regarding your eyes and glasses I am the same. But a great Optometrist told me to exercise my eyes more as I work with computers 8-10 hours a day i.e. Fully focus on something in the distance and then something close 10 times every few hours. My eyes are about 30-40% better and sometimes forget to wear my reading glasses.
Anyway to bypass the chip till run it from the 5-volt DC mains input? I note most of the board seems to be well under 3 volts I see jumpers for phones on youtube but just wondering if it could be done for these tablets?
very good have learnt plenty thanks
Thanks for your video:) Charger IC - TI BQ24296
Your glasses are fine, it's not always an age thing, some children have them.
My close up vision is getting blurred, i don't think that's too bad for 51 year old eyes :-)
Well done, sir! I've learned something from this video!
My original chip is a Texas instruments BQ 24296 / TI 461 / C7VX
I've purchased a replacement, but only noticed its actually a BQ 24296M / 7C8 / AFDE chip.
I've looked at the manufacturer data sheet. Both have the same chip fitment, however there's a slight difference with the original showing two connections for USB PHY and the new M chip only shows one connection for PHY.
Is this new chip any good still? Or does it have to be exactly like for like??
Thank you for your awesome video.
This got me into a question: Inductors from power supplies have the output or the input voltage on their coil endings?
en.wikipedia.org/wiki/Inductor Depends of the schematic usually on DC is the same output
Ok got it, thank you sir.
Btw, were you able to recover those videos that got corrupted?
no, are gone
Can you explain what shorting data lines does?
Ive got a reading of 4.11v on battery usb detector showing 1.78v still not booting or charging is battery overcooked?
Hello. What type of plug does the tablet have because it is not a mini usb. It is a little smaller than mini usb. Thanks.
Another great video....thank you.
If I don't have another HUDL lying around is there anywhere you suggest I can purchase the charging IC from?
Same has happened to mine cant change my chip any other way to charge the battery externally
Which USB meter r u using? Send us buying link.please .. tell us how you make your own flux? Thx a lot
check ebay for oled usb power meter, also check the video 'about my flux'
Electronics repair school. Thank to you. Please keep updating these videos.its lot of help..
good infomation sir
Thank you for this video ,is an lesson for me.
but you have eagle eyes thats you have strong thing in you .i love u man
Congratulation on your another successful job and also video.
How did you know that a particular IC is IC charger?( There can be so many different IC that works as a battery charger that are used by different manufacturers).
Do you have any trick?
Thanks
see the video again, he clearly stated what line is what and why he pointed on that IC.
Do you mean he found out 5V rail by sight only?
there its a big track coming from the charging port connector, also i checked with multimeter
I have a hudle here. It prompts to boot when you put usb charge cable in. But no charge on screen. I’ve followed your steps etc. And multimeter is beeping on same caps in continuity you’ve measured for volts. Will replacing charge ic fix this? Thanks for any help.
Thank you very much for learning us..i am learning repair electronics from your channel all thanks for you...i started testing voltage on laptop motherboard today according to what i understand from your videos. i put negative of multimeter on ground and positive on the two mosfets and i get 19v so i start to put the positive on other parts to test voltage (fool me) suddenly something get wrong ther was a spark and i smell like plastic burn and the laptop wont work now dose not even start...there is light the charging is ok but the laptop wont start even the fan dose not have power.of course the laptop was working fine before this..please help..i tried to learn on my laptop motherboard becase i dont have any other board to practice on and i love electronics..please forgive me for taking so long...thanks for your great teach and job
Boss, hope no problem? i havnt seen you online today.
how do you read the circuit boards and follow their rails because the rails go in all directions also how do you know the input and outputs please explain thank you
no :) the 5v power rail FROM charging port, goes only at the charging ic
Can You tell me if the battery is fully charged but this chip is broken does the tablet turn on or not? My hudl is dead and i thought this may be the mainboard but after this video i am not sure.
I have the same problem with the charging of my Hudl 2 and after replacing the charging port board and it making no difference I wired a cable directly to the battery and connected a 5v 2A charger to it and it charges fine in a few hours.However I don't like my solution because lithium batteries should be treated with care and a cable hanging out of the side of the tablet isn't a great idea. I want to try your solution of replacing the charging chip - do you perhaps have it's identification part number please? Great video!
ohh how did you do that ive replaced the charging port but no luck
i know this was a while ago but by chance do you remember the batteries chip number as i have 2 hudls with the same problems ive replaced their ports so it isnt that and the batteries hold charge
I suspect i've got the same failure too - The part number on the chip in my Hudl 2 is Texas Instruments BQ24296. These seem to be readily available on ebay. I've just ordered one to see if this solves the problem.
Nice job
Another great video, have you got the ic part number from the charger ic that you changed?, so i can order some in advance many thanks
no, sorry, wait, if i can find the chip tomorrow, i will write here
Thankyou
Can be this common fault in other tablets? for example chines tablets, because I have one, it didn't coming on and the charging sign not appear when I plug the charger in, so it's maybe the ic charger was gone? Please reply.
probably not. Charge the battery and see if the board is alive
Sir, I brought a linear power supply MAISHENG MS-305D, but i see/notice you increase the current while charging a battary, but for my DC power Supply, i cannot increase current when charging the battery (is there some i can do to increase current?). THANK YOU
yes you can, you have 4 knob's there
Yes, i have four Knobs two for voltage (fine and coarse) and the other two for current (fine and coarse). but when i connect a laptop battery or phone battery, i can increase the voltage but the current will not increase, if i rotate the knob. If i connect transistor or other components i can increase the current upto 5A. is there i solution to that with battery?
I have the same problem with Hudl 2 replaced charging port still faulty , please what is the charging chip information do I can buy one.
thank so much sir
How can you track those ICs so quick?
Great, where may I buy that IC if I don't have a broken tablet around?
probably ebay
Electronics repair school Thanks for the video ,but have a hudle2 that takes a charge (1.85amps) but Will not power up nor show a charging light.Swapped a known good battery and replaced the charge chip featured in your tutorial.The fact that it takes a charge surely eliminates the charge port pcb as faulty?
Any ideas would be welcome.
hi have you got the charge ic chip part number thanks
reconnect battery not seated right
Honestly, you unsolder that IC in seconds. Mine won't come off at all! Any tips for a heat gun newbie :-(
thank you for this video very interesting
whats the name of the chip? i have same problem but no spare Hudl
I've got a Hudl 2 with everything working but the mic does not work it works if I plug in a headset but the mic does not work on the Hudl 2 what do I do ?
I've seen advice given to poke something in the reset hole of the Hudl, unfortunately only the Hudl 1 has a reset hole, some people have poked the mic hole instead on the Hudl2 by mistake.
fandastic sorin thenk you-give me more like that issue
Thank you very much sir u have inspire more than i ever expected.
i think were all in the same boat......glasses are the in thing :)
thank you so much now I understand
i will try to do more video about the power supply rails on future, thank you
So what was wrong with it because i have the same problem cheers in adance
It was the charging control chip on the mainboard. Once that fails it will not charge nor will it boot up since it also controls the power output to the mainboard. After the charging board it is the most common failure on these tablets.
Steven Booth I have a hudl that comes on with usb cable. Prompt to boot. But on screen there is no sign of charging. Will chip replacement fix this? Thanks for any help.
bro plz tell me ic name and number i lose my tab charging ic plz
Nice!
That symbol for Battery error, like (Battery temperature too Low/High)
i have 3 pair glasses, 1 is far, 1 is close, (seeing close small things, and lighted magna-glasses as i don't have the microscope) far is reading computer screen hahaha don't feel alone
already look like a grumpy old man, with glasses its worst
Electronics repair school Could you please explain how shorting the data lines would show you what exactly? Sorry if this is a ignorant question but I have watched all your videos and this is the first thing I don't understand.... Thanks for your great work and opening me up to faster repairs without schematics...
another very good video .... thanks
btw .... Have you already thought about becoming a brain surgeon in your next life?
Haaa, thats a good one :))) Yes, why not :))
you look graceful while wearing glasses . .hehehe
Glasses fit you :)
Thank you, sweetie
You are welcome! :) Don't torture yourself by avoiding them
interesting vids big guy..but u not old🤣
You have connected 5V 3A to motherboard and battery, so you have damaged charging IC and protection circuit.
are you here to learn or to teach ... I think to learn so try to learn
Don't worry about wearing your glasses. Do you realise that most of the geeks watching this video have been doing so much closeup work that they will be wearing glasses too :-)
The symbol means that their is not enough charge to start
You are old.. damn, it seems me too. :D
i checked your facebook pictures, you look older :)))))
Not older than you :P.
btw, what is your real age sir? if you don't mind to tell
Boss, hope no problem? i havnt seen you online today.
i'm fine , thanks for asking, just busy