Thank you @lfb6 Unfortunately your file did not have any effect. You are probably right that it’s a hardware defect and not the BIOS.
I noticed while using the UEFITool that every volume within the Corrupted_BIOS.bin file has a valid checksum. Can this be considered the proof that the BIOS in fact is NOT corrupted otherwise the checksums would be invalid?
Didn’t do any statistics, but I’d say not completely 100% but makes it less probable that there’s an error. If you compare stock bios volume checksums to your own dump and they’re identical that’s even better. But put both files (stock and dump, same version) in a hex- editor and compare the from the end, it’s a lot quicker since the variable parts of the bios region almost always reside in the beginning of the bios region.
if possible it would be greatly appreciated if someone could rebuild my bin file
Many thanks in advance
https:// drive.google. COM /file/ d/16MRI1igs_mcOOoXttgaiAmQAFR4rZTcO/view?usp=sharing
I am wondering if I can use this programmer https : //www. amazon.com/KeeYees-SOIC8-EEPROM-CH341A-Programmer/dp/B07SHSL9X9/ref=sr_1_3?keywords=ch341a+programmer&qid=1646314893&sprefix=ch34%2Caps%2C182&sr=8-3 that I bought to perform the steps to reflash my bios?
Wanted to shout out this thread for saving my laptop after a failed BIOS update. For whatever reason the update process failed and turned the laptop into a paperweight. I decided to flash the version of the BIOS I was trying to update to (EECN39WW) because I was troubleshooting a separate issue when the update failed. I am also never updating the BIOS on this thing ever again.
This was the programmer I used that includes a 1.8v adapter and no instructions whatsoever https://www.amazon.com/dp/B07VMPZFWH
I did use a separate range of data from the recovered BIOS for the new BIOS image. I used 21000-40FFF because 37D8F was in the middle of some other data in my case. Other people seem to have noticed this as well. B21000-B21280 still worked for the serial number etc. I didn’t get to spend much time with it, but I think the Lenovo logo might be missing/corrupted in my firmware now as I just get a black screen during boot until the OS takes over. I’m fine with this as I’m a little annoyed with Lenovo at the moment.
Glad this info is still helping after all this time.
I still don’t know much more about this topic than what I learned back then, but I would expect the offsets to change some with different BIOS versions. It’s also probably best practice to copy and paste the relevant bits into the exact same BIOS version and then update to a newer version afterwards if you need to.
If you want, I can look at your dump to see if my opinion matches yours on which offsets should be copied.
lfb6 brought up a good point about the windows key. I looked at the BIN file I edited and it does have the key, so I must have copied it over, but didn’t mention it in my instructions post. I have really bad memory problems (literal brain damage), so I don’t remember why.
Anyway, the key is offset block B10000-B100B8. The other areas are 21000-40E8F (or 40FFF like you did, doesn’t matter) and 21000-B212FF. Again, not sure why I stopped at B21280 originally. My old edited file shows I went to B212FF.
The black screen at boot might have something to do with the missing key? I guess you could try again and see what happens, but I’m sure the last thing you want to do is mess with it again. Trust me, I understand the frustration. I was pretty furious when I had to deal with this problem. It still amazes me that I was able to fix it on my own. This bits and bytes stuff makes my head spin.
Hello Plastixx. After trying to update bios in my Lenovo Flex 5 14ITL05 by Vantage (Lenovo app) I receive the same symptoms like you. My laptop has Intel i3-1115G4. Is your’s programmer good for me? And second question: what version of Bios I need?
Different machines in addition intel vs amd so don’t use the offsets mentioned here without check!
Seems lenovo doesn’t provide complete firmware image so you’ll need a valid backup of the bricked bios!
Recommend to start your own thread!
But all steps and programmer the same? Difference only between BIOS?
No
Who can help me with this? I am new to this topic.
You yourself. There’s lots of information in this forum regarding use of a programmer.
SPI chip type and voltage you’ll have to find out yourself
Dump the bricked bios and attach it here do that one can have a look into it.
What were the symptoms of your daughter’s laptop? I think I’m in a similar cirmcumstance where my 14ARE05 shows no sign of life apart from a brief flash in the power light when plugged in.
I have a story behind what happened to my unit and am open to sharing it in a PM. I believe your process might help me revive my laptop, and would like to be able to contact you at points of assistance.
@RookiePaw If you want an answer from a special person address the member directly. Otherwise your post might not get recognized.
Your “story behind” has to be quite valuable as you’re promoting it as an ‘offer’ via PM. Most people are just happy to find some help to get their machines up and running again…
Welcome to the Win-Raid forums!:
@Peterson Did you have progress dumping the bricked firmware?
I’ve just bought a programmer off Amazon, but I can’t the drivers for it. I’ve done a handful of Google searches. What keywords/specs should use? The “run” light on my programmer hasn’t come on either, but I think that has to do with the missing drivers. That and the “Error connecting CH341(-1)” in AsProgrammer are my current problems.
https://winraid.level1techs.com/t/guide-using-ch341a-based-programmer-to-flash-spi-eeprom
https://winraid.level1techs.com/t/guide-flash-bios-with-ch341a-programmer/
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Saya juga mengalami kejadian yang sama. Idepad flex 5 14ARE05. S/N : R90Y3VZH mohon di bantu modifikasi program ic bios saya🙏