X395

[parahandler]

Hello! I've had a bit of an issue with my X395, I think during a BIOS update recently, something interupted it; I'm not sure exactly what but it no longer posts.
- Powers on
- Power light/Charging lights
- CPU heats up, fans whir up
- Black Screen
- No sign of life.

I've done the LCD test, so I know the display functions.

I feel the BIOS is somehow in a corrupt state, I'm not looking for a PW removal or anything like that, but rather how a path in which to install a working BIOS. I have the CH341A to dump/write, so I've attached a copy of my broken BIOS. I can't seem to get a copy of the BIOS to reflash it, as any attempt to get a clean ROM from the Lenovo packages yields an Fl1 file, which I'm sure are some sort of wrapper/compressed/part file so aren't any use.

Any advice would be much appreciated.

Thanks!

- P

[SMDFlea]

Hello! I've had a bit of an issue with my X395, I think during a BIOS update recently, something interupted it; I'm not sure exactly what but it no longer posts.

Post the laptop serial number -> https://www.badcaps.net/forum/troubl...before-posting

[parahandler]

Post the laptop serial number -> https://www.badcaps.net/forum/troubl...before-posting

My apologies; SN: PC1J8942

Thanks

[parahandler]

I actually ended up resolving this, what I did was as follows:

- Acquired a copy of r13uj56w.exe, which is the 1.30 version BIOS for the X395.
- Using innoextract.exe, extracted the contents.
- Located $0AR1300.FL1 within the contents of that file.
- Opened it up in a Hex editor (I used HxD)
- Opened another ROM in the same hex editor, and had a look at the start and the end of the file.
Start:

End:

- Found the above within the FL1 file, and extracted highlighted it all, and then "File > Save Selection", saved it as ROM-extracted.bin (see attached)
- Then I ran that ROM through the autopatcher v0.2, which generated ROM-extracted_PATCHED.bin (see attached).
- I flashed the patched image using a CH341A programmer
- Plugged the laptop in with it's power adapter (keeping the CMOS battery, and main battery unplugged), and taped down the anti-tamper switch.
- Powered it up, entered the BIOS prompt, which asked for a password: "password 1234" without quotations.
- Followed the guide for the autopatcher, any character for hardware ID, press space when prompted, and then turned the laptop off when it said "power off".
- Unplugged the laptop, flipped it back overand used the CH341A programmer to flash the ROM-extracted.bin
- Plugging the CMOS battery back in, and the main battery, I plugged the adapter back in and powered it on.
- It kicked the CMOS self heal into life which ran, then it rebooted, and the BIOS was the accessible without a password, still with the CRC error.
- Entered the BIOS, enabled restore defaults, pressed F9 to restore them all, and then saved and quit.
- Voila

I hope this helps someone.