Lenovo Thinkpad P50 Bios Corrupted
Hello, it seems to me that my thinkpad P50's BIOS is corrupted. I tried to boot it up and the power button would only blink 3 times green. The serial number is missing from the bottom of the chassis so I'm not sure what to do. I hope it's not the motherboard that's broken...
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Update: I seem to have made marginal progress. When I boot it without RAM it beeps 1 3 3 1 times, without RAM the fans and keyboard just turn on then off after a few seconds. -
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After replugging the CMOS battery and the switch next to it, I am glad to say that the BIOS file worked. Thank you so much, you just made my day.Originally posted by hoaca388 View Post
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Hello,
I've been trying to remove the BIOS Password from my Thinkpad P50, and I have tried to use the autopatcher provided in this forum, however it doesn't seem to work. When I flash the autopatched BIOS to the computer it just beeps 5 times twice then turns off. I've made sure to detach the CMOS battery and held the tamper switch down with tape so I'm not sure what else I can do. One thing I did notice is that when I use my CH341A to verify the hex code for either patched or unpatched BIOSes it seems to mismatch after trying to boot; I assume that's the BIOS self healing? Whenever I flash the original BIOS the computer works as expected. I've attached my original BIOS, the autopatched version, and a screenshot of when I boot with the original BIOS. If anyone could help me out I would greatly appreciate it.
P50 Laptop (ThinkPad) - Type 20EN
Srial number : PC0EWVAN
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Lenovo Thinkpad P50
Model: 20EQS48H00
Serial: PC0MLZBV
Hi, I'm requesting the bios for my P50. I messed up badly after an Ubuntu Studio install/update and now when I hit the power button it just flashes the keyboard lights briefly, and does nothing else. No post, fans or screen. I searched the forum and found other firmware posted, but I'm not sure they're compatible. Thanks for any help!Comment
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Hi, I'm a complete noob to bios hacking, have just received a CH341A today and will try to extract the corrupted (?) bios tomorrow, hopefully.Originally posted by SMDFlea View Post
Will this help?
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Hi again!Originally posted by SMDFlea View Post
I managed to connect the CH341 and read the bios. Attached is the file.Comment
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Hello you can try this new file ....Originally posted by MartyC View Post
Hi again!
I managed to connect the CH341 and read the bios. Attached is the file.Comment
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Thanks so much! That worked great! Now I have my lappy back. So happyOriginally posted by Markus1741 View Post
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