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Bricked y520 bios
#1
Hello to all! my son during the bios update of my laptop legion y520-15IKBN shutdown the machine and brick it permanently.
I try to flash some bios finded online but pc won't work properly: during boot stuck some minute in black screen and then bootup, windows have a lot of bluescreen and if i try to enter on bios settings, sometime crash
Then i extracted the update from official site and flash it, it seems to work properly but bios won't recognise anymore model/sn, cannot enable secure boot and gpu (nvidia) wont work
it is possible to use bricked dump to add some parameters (like model, sn, secure boot key and others) to blank official update one?
thx in advance
original bricked https://drive.google.com/file/d/1s0bKzsy...dd-gSnudzH
official update https://drive.google.com/file/d/1Hc1SwCK...AgDOVy5BOJ
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quote
#2
yes, i need to restore the original bios (wich i have only a bricked image) replyed to your pm Wink
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#3
Hi friend, the short way is to get a Firmware Dump from another laptop and then replace your Bios Region, but your model is rare Wink ...

Your Firmware say that your laptop is Lenovo Legion Y520-15IKBM Laptop (Lenovo) - Type 80YY and you wrote IKBN.

System Information
Operating System Microsoft Windows 10 Home (64-bit)
Model LENOVO 80YY
Motherboard LENOVO LNVNB161216
Memory 8.00 GB DDR4 SDRAM 1198MHz
Northbridge Intel Kaby Lake 05
Southbridge Intel HM175 31
BIOS LENOVO 5XCN20WW

Then the solution is get Firmware from original stock one and replace the Bios Region (0x200000-600000)

FD Descriptors Unlocked, Adv and Pwr unhidden :

https://www.mediafire.com/file/57lo9ikkx...W.rar/file

Alternatively this one :

https://www.mediafire.com/file/dzh7nwjxn...W.rar/file

Stock Bios :

https://pcsupport.lenovo.com/lu/en/produ...IOS%2FUEFI

I hope it would work ...
Let me know
Regards

P.S. if Bios Region is broken totally then it needs to replace only your system informations

FE3542FE-C1D3-4EF8-657C-8048606FF670 SetupUtility

Form Sets
--------------------------------------------------------------------------------
Offset: Title:
--------------------------------------------------------------------------------
0x91D20 Information (0x1432 from string package 0x4)
0x93010 Configuration (0x144B from string package 0x4)
0x97BC0 Advanced (0x1483 from string package 0x4)
0xB8EB0 Power (0x153E from string package 0x4)
0xC8120 Main (0x46 from string package 0x4)
0xC9410 Security (0x7A from string package 0x4)
0xCAEF0 Boot (0x9A from string package 0x4)
0xCC910 Exit (0xD1 from string package 0x4)

095C : 75 1D to EB 1D

FD Descriptors Unlocked offset 0x80 :

Original
00 0B A1 10 00 0D C0 00 00 FF FF FF 00 00 00 00 00 FF FF FF 00 00 00 00 FF FF FF

Modified
00 FF FF FF 00 FF FF FF 00 FF FF FF 00 00 00 00 00 FF FF FF 00 00 00 00 FF FF FF
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#4
Hello! Thx to Dudu2002 i succesful fix the issue.
Thx to GioCap for the tip, but Dudu was fastest
Have a nice day Big Grin
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