Toshiba Satellite C55, no POST, power cycling - LFC
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- Опубліковано 3 жов 2024
- This Tosh came in as a No POST, let's look at how to approach this, starting from the easy fixes, then progressing to the more technical solutions. Spoilers below:
BIOS chip was corrupted, and we reprogrammed it. Handy that I just did a big video about BIOS programming 👌
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![Toshiba C55 No 3.3/5v rails [Fail] - LFC#216](http://i.ytimg.com/vi/bFtcpo3_mwE/mqdefault.jpg)
![Toshiba C55 No 3.3/5v rails [Fail] - LFC#216](/img/tr.png)
That cleaning montage at the end was the cherry on top, love seeing somthing manky clean up good.
May be an old Pentium, but she cleaned up nice!
Not a home computer repair story but they weren't around when this happened...
The cleaning reminded me of a repair I did back in the early 1980s to a CRT television. It was in a house with such heavy smokers that the tar/nicotine had built up on the back of the CRT causing severe arcing from the EHT.
Having removed the nicotine from the back of the tube which stopped the arcing, I noticed the tar/nicotine had also covered the outside of the wooden case. Being kind I decided to clean it off using foam cleaner making it look much better and more pleasant to touch.
However, when I returned the TV to the customer the change in colour from dark to light brown was so drastic they claimed the TV I had returned was not theirs and that I had swapped it for another one!!!!!!!! It took a LOT of convincing to persuade them it was theirs.
After that I didn't have the heart to tell them that the BLUE gun on the CRT had no emission and that all they were seeing was RED/GREEN. The blue component of the picture is so small anyway and it had deteriorated over time so they didn't notice and were quite happy watching it that way ..... or perhaps their glasses were also covered in tar/nicotine and they couldn't see it :-)
Didn’t realise where you were from until i walked past your store the other day! Keep up the great content
1:06 that’s how a laptop should come apart! And how easy an upgrade should be!
I still have the same laptop it's so freaking robust
@KMac As a computer technician myself i totally agree with you !..some were really bad,there has been the odd occasion were i'm thinking i'm going to have to phone NASA to get help with getting into this !
At least with this design, you don't have to take the motherboard out in order to replace the thermal paste and clean out the fan... whilst I do have a Packard Bell that is accessible by just the rear panels, it is so much better than my old overheating Acer which needed the motherboard to come out. I didn't bother with it, and just sold it on.
Nice repair, I would always test power rails before doing the bios, You still could get fan spin if the CPU V core is missing or dead CPU, I hate it when I get laptops and they messed with the bios and it was a power rail, I had a Lenovo which came in because of a failed bios update, the laptop was completely dead no power, Reprogram the EC Chip (build in eeprom) and it worked. Usually I would check to see if the charging lights comes on, Normally that would indicate a good EC eeprom file but there was no charging light because of the corrupted EC eeprom, just a quick way to test the EC eeprom. 👍 Super IO term comes from the old desktop boards.
I have this exact model with this exact problem; I didn't even consider a BIOS issue (I've got no experience with laptop repair, only embedded systems, and that's going back a few years now). Got a new avenue to explore now. Many thanks for a very informative video!
Same here with Toshiba Satellite C55-A-1RH, that I have on my workbench. Trying to figure out what's going on. I have a power cycling, though.
Ive seen all of your lets fix computer vids. You are an amazing tech and its highly theraputic just listening to these vids, thank you :)
Always enjoy watching these videos and have been watching for a few months and it's just brilliant to sit down and watch him do what he does best
You know happiness after board worked is worth than the money :D
I like the way you talk to the viewers, you talk you do not scream. well done.
It's like you are in the same physical room with him eh. 👍
when you said "I'm not an expert"
🤔
Good job on fixing this laptop on a Friday afternoon! 👏 👏 👏
Great fix Graham. Puzzling to me what would cause such a fault within the chip.
How about the customer tried to flash the BIOS, messed it up but _"forgot"_ to mention it to Graham.
I know this is a two-year-old vid, but I am glad I i chosse to no buy a Toshiba. They are known to be crappy. Thanks for putting out these videos!.
Great fix Graham. And thanks for sharing.And btw, I love the cleaning before it goes back to the owner! Dutch regards, Nico.
i wish every repair was that easy great video
well done. I'll definitely have to check here as well to expand my service. very helpful these videos.
I have a deep love for toshiba laptops… the one I had allowed me to update from a pentium to i3 I messed about with ram sdd s I know this is basic but it’s where I started to be fair!
6pm on a friday afternoon??? Hahahaha.
Love your videos though, taught me a lot as a junior technician
I've had one of these series. I've had it repaired 3 times in 2 years. Absolute craptastic
Exellent job graham
👋👋 Calidad de video, Felicitaciones !!! Gracias
Thanks for the tip, I'll try that with a laptop that I have that is just giving me fan spin.
Thanks so much for the video have been waiting for such a video for a long time
Great work as always keep it going.
Nice vid as always. Love your vids so much. I learn a lot from you on how to use my tl866 2 plus. You can switch to arctic mx5 when you buy the next seringe. It has better performance 😁 it performed better than thermal grizzly kryonaut in my tests and really impressed me not to mention that it does not scratch surfaces comparing to kryo that it looks like the thermal paste is sanding the radiator 🤦🏻♂️ very dissapointed of kryonaut. Arctic is the best ❄️💧 and lasts longer too
Don't forget, Kryonaut is designed for sub-zero use. Arctic will freeze up under LN2 or Phase-change cooling.
For normal room-temp cooling, yea Arctic makes a lot more sense IMHO.
Cleaning montage - 👏👏👏👏👏 Reminds me, I must grab a can of Mr Sheene. I do so hate using a dirty laptop and mine deserves a silky finish and so does the better half's one. I hope that it may delay the onset of food particles build up by a few extra days. 😵
Would you be suggesting to the customer that they replace the spinning rust. That thing would seem like it was flying with an SSD installed in it.
*Thank You* for sharing the video Graham. Muchly appreciated. 👍
Another great job, Graham!
Nice job. Remove the battery when soldering something on the board.
22:49-22:55
I actually don't think that's the conclusion I would've reached just from my experiences troubleshooting lol
but then again the ONLY time I've ever had power cycling was with my very first build and I didn't know what the mobo standoffs were for 🤣🤣
sad to admit it took me at least a few days after work to figure it out .
good stuff graham 👍
Cool, more Adamant IT repairs.
you do amazing work - love your videos
Thats great, you are good repairing laptops keep doing this you are great.
great video you under estimate yourself ...you are good and prescise
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How many millionaires do you know who have become wealthy by Investing in savings account? I rest my case.
It's not how much money you keep,but how much money you make,how hard it works for you and how many generations you keep it for.
I understand the fact that tomorrow isn't promised to anyone,but Investing today is a hard thing to do because I have no idea of how and where to invest in?
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Please do you mind sharing any means of reaching out to him easily,I am really interested I believe this is genuine
Hi Graham i will give you tip. if you doubt on an bad bios. You must use an usb keyboard and toggle capslock. If capslock not light up then is it biosfirmware failure. The problem was the main bios.
Regards Steve
From Belgium
Nice trick (tip). 👍
Wish I had a flap like that on my Fijitsu; I've been needing to replace the C-moss battery for the last 3 years. I've taken every screw I can find out (20+) and the back still won't come off.
With the law supposedly changing so that people have access to the parts to fix electrical goods in the UK, I wonder how many more laptops and other electrical goods will be saved from the rubbish tip. Good job 👍. Recycling saving our ball of rock.
A toshiba Satellite I had one back in the early 1990s!
Every computer repair person has their own order in which they do checks. Nobody should complain about the specific order. I myself choose a different checklist order and we usually come to get to PC issue at some point. I clean the fans and repaste the heatsink on every computer that I repair (if possible), to others such a detailed cleaning is a waste of time. You do good work, pay no attention to the naysayers.
Brilliant.
easy breezy :DD
interesting. stay well
Windows 10 not only update system files, "firmware" files too. That means it could update system BIOS by its own on Windows Update, so a bad restart could end as a corrupted BIOS. As always, Windows Update genialities.
Plus a BIOS update screen might scare the average user who would panic and force power off the machine
@@coctailrob that's the second problem, W10 doesn't show BIOS setup when updating, just shows an usual "Updating x of x" like a normal updating. Microsoft were too far with that...
I've a laptop over my bench (a CQ40 Presario) with exactly the same problem, and I checked everything I can, but, didn't tried the Bios
I'll do that right now! 😂😂😂😂
My L655 has held up wonderfully. Noticed you could socket a cpu in it a year or so ago and bought a 560m to upgrade it with. Was the p6200. Only thing I hate about it is that the cmos battery isn't easily accessable. Have to take the whole motherboard out. Then it isn't even the standard cr2032. Some thicker smaller cell.
hola soy de Bolivia exelente trabajo brow... me suscribo a tu canal
First thing i tought was Bios issue glad i was right
considering how old that thing is the owner has looked after it well
good work.
What did cause this bios to fail in your opinion? Did a bit just flip or is the chip going bad or something else? If the chip could be the problem, wouldnt it be better to replace it?
EDIT: Would be interesting to compare the read files to the acoording bios files from their website to look for bit flips.
Congrat,nice job!
By looking at the dirtiest keys on that keyboard you can possibly guess which keys are used most. And those just might be the ones used on passwords on that laptop.
really gooooooooooood
Another great video, definitely enjoy watching and have learned a lot from watching your videos. What tweezers are you using? can’t seem to find a good quality pair to use.
nice work, congrats
Do like how you troubleshoot!
Nice video! Thanks!
Do you have any experience modifying BIOS .bin files such as the ME section and replacing the serial number of the machine in it? I'm just curious if you find a dump bios .bin file, will it work without it? It's becoming more and more difficult to find BIOS .bin files on the manufacturer's website these days and the only way of updating BIOS is from within Windows via an .exe file. I know you can extract it but the files you get have different extensions and usually none of them is a .bin file.
I'm looking into this stuff at the moment, I want to talk about it in the next video or two where I do BIOS programming stuff. There are times where it matters, and times where it doesn't.
You could probably upgrade the CPU in that laptop to extend its life a bit more.
Hi there. good job diagnosis and very professional solution. You are on my list of instructors. Greetings from Mar del Plata / Argentina.-
When working with the BIOS chips, shouldn't the CMOS battery be removes as well?
And I've been using bismuth based solder lately. Probably not for high current mosfets but the lower melting temp helps when working within delicate areas and don't need to remove it like low-melt solder.
Nice work.
i really wanted to see him take that chip out without removing it from the case. that woul have been very interesting. i wouldnt dare use hot air in a plastic computer case lol but maybe im just scared for no reason
good work :)
I do have C55 with the same symptoms. I really liked your repair video. I attempt to reflash the BIOS, which did not work. With the new BIOS, the laptop did not try to start at all (no power cycle). Returning the original BIOS brings back the old symptoms. I'm guessing my BIOS bin is not correct. Where did you able to find the BIOS .bin file? I did find only some .fd files, but they contain extra data, not a clean BIOS bin.
Awesome one as always. Thanks
Btw I'd love to see you try fancier clipping programmers. That'll save you bunch of time plus you won't have to use a hot air station. If there's one out there that actually works, that is.
Graham has asked what clippers people use that have worked so he can try them. He hasn't had the best success with the ones he has.
@@josephking6515 i bought several different brands and none really works so i soldered an 8 pin adapter with wires and then i just solder the wires to the chip on the board its also faster then desoldering and soldering it back
The highlighted characters looks like a password of sorts... pectorals159 or combinations?
I used to repair laptops, never had to reflash the bios, dont see why it would corrupt it since bios should be wp during boot. Maybe many no fix cases were the bios
Thanks for great video....
doesn't the ROM chip contain important MAC addresses and serial numbers in a laptop compared to a Desktop motherboard?
very instructive...But you can't try to update the bios without taking out the chip ? via USB ?
That SMD bios chip Adapter should be pressed in order it open contacts to fit the chip itself when you release it
i dont always trust someones random .bin file w serials including Win 8/10 missing.
for toshibas i download and extract then cut with hexeditor the file.. then i extract NVRAm and some padding files from old to new w UEFITool.
some are only bios region missing ME and needs Clean Management Engine procedure from old backup file.
and dont forget to update bios after.. to try prevent same bug that failed on old version!
nice fix
I'd preferred seing that fix failing so we had a longer video 😂🙈. But yes, good way of ending a work week! Nice job! Do we know why that BIOS failed? Maybe some cosmic rays hitting it and changing a bit... Not joking, it's a very cool science fact but dangerous if it happens to critical electronics like it happened to a plane once that almost crashed (flight QF72) "[...]However, a fraction of these particles carry enough energy to interfere with the operation of microelectronic circuitry. When they interact with integrated circuits, they may alter individual bits of data stored in memory. This is called a single-event upset or SEU."
a veritasium follower spotted lol
Well, every day is a school-day! 😊
I wish Toshiba still made laptops. They were always high quality. I still have a Satellite model from 1995 that runs the original Windows 3.1 perfectly. I bought a new HP laptop last year and it is flimsy rubbish in comparison
Doesn't reflash the bios chip affect the windows serial key?
How many screws left leftover after assembly? :D Nice catch!
i really love watching your valuable videos thank you you very much and plese keep it up and one comment i wish to give you is that plaese put the links for the firmwares and the addres where can i get the programmer with respects!
Have also toshiba laptop same faulty, but not same model of Toshiba. I will try this to my laptop.
probably not related, but I had Toshiba L50-B at home, that would not charge battery or hold bios information (related to dead battery). Just FYI issue with charging was solved by BIOS Update. So remember that if you'll get your hands on one that does not charge.
I have many relatives in a country that would be overjoyed to get a laptop like that even with spinning rust. I wish I could find a local source of laptops/notebooks I could clean up and send to them when our present COVID-19 conditions allow shipping of _care packages_ to resume.
Great fault finding, enjoyed watching that. Could you link to the bios chip reader and software used?
I did not actually understand where did you got the secondary bios from ? 🤔 thank you
I used a dump from Badcaps forums. Lots of helpful peeps there who make backups of every BIOS they see.
One SSD would be an upgrade :)
Hi sir
Adamant IT good day.I just want to ask help from you,coz I have a repair of laptop HP pavilion G6 but unfortunately when I disassembled the laptop there's no BIOS on board. I thought the technician who previously repaired the laptop removed that.Now I dont have a donor board to compare what's the number of the bios.So I'm asking for your help if you know what is the bios number for HP pavilion G6.
So a bit of a question here, what is the cause of the bios programming failure that it's programming goes missing in the first place ?
where do you get good bios files?
On my brothers Satellite that i fixed there are a couple of pins near the battery you need to short with the battery removed to completely reset the bios.
it's not that u "need" to
it's just so u don't have to wait for 2 mins
Very periodically. Not just a bit or extremely?
This is the computer ım using rn :)
Hello, I have a very similar no POST C55 satellite from Toshiba but not 100% the same Mobo. IMHO the issue is exactly the same. Could you indicate from where you got the BiOS files to re-program the BIOS chips (Winbond and Macronix) ?
can you tell in the vidio how much repair was cost like this to customer, please
Graham, have you every come across a defective BIOS chip which needed to be replaced? Apart from bitrot that is ....
I haven't seen a bad chip before myself, but they're out there. I think the giveaway is when you can't get a consistent read or write to a chip without errors. This can sometimes be a bad setup with your programmer though, so needs to be tested carefully.
Wonderful end to a Friday, and don't you love it when a plan comes together?
I think I like the calendar that is used in your country. 👍😀
@@josephking6515 Well, you could move here, but that would get expensive.
good stuff Chap, in my English voice, lol. What would cause the BIOS to corrupt?
Customer? 🤔
Where did you get these two BIOS files? I never saw two, it always was one .bin file.
Este dato no lo sabia,que algunas placas lleven 2 chips de bios de diferentes capacidades.
Las bios fueron descargadas desde la pagina de descargas o soportye de Toshiba???
Thank you for sharing this video, but I can know where you found the firmware?
Badcaps forums are a good source. It's often possible to get the official updates from the manufacturer and extract the actual BIOS files from the exe, but this is a bit more fiddly and I haven't looked into it yet.
@@Adamant_IT Thank you very much, I'll see
How do you possibly charge enough for that work on an older laptop?
have you repair any mosfet broken laptop?
USB and SD slot not working.