Ian Slinger
New Member
Last Activity: 10-28-2024, 06:23 PM
Joined: 10-13-2024
Location: Mount Evelyn, Victoria
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Here you go...... -
Sigh. I appear to have won the battle but lost the war.
I de soldered the flash chip, soldered it into the carrier for the CH341A and successfully flashed it with a BIOS I found on badcaps. No sign of life at all now. At least the fan and keyboard sprang to life for a second or so before.
Might be time to cut my losses.
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Ok, I'll try to get a pogo pin adapter before I possibly make a mess trying to solder to tiny pins.
Is the backup so it can be analysed to see what the correct file might be? Because I'm assuming it is corrupted, so a backup might not reflect the actual binary, otherwise it would be working
Or does configuration information actually get written to it that could be corrected?Leave a comment:
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Makes sense in retrospect - 256M [I]bits[/I], so 32M [I]bytes[/I].
Doesn't look like I can flash that with my CH341A (the supplied clip is too small). I might have to solder some wire wrap wire to the pins.
The real trick is to get hold of the right BIN file to flash. Any pointers on finding that?
I have downloaded various EXEs and ISOs and pulled them apart with [FONT=Courier New]binwalk[/FONT] but it's hard to identify which file to flash.Makes sense in retrospect - 256M [I]bits[/I], so 32M [I]bytes[/I].
Doesn't look like I can flash that withLeave a comment:
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Serial number is PF1CSTFM.
The chip designation is W25Q80DV which is why I assumed it was 8Mb. There is only the one Winbond chip other than one that appears to be 256Mb (25Q256JVEQ).Leave a comment:
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Searching for recent BIOS image for a Lenovo p43s
My p43s recently died - the classic "ESC, F1,F4, Capslock lights" issue so it won't even POST.
It's possible there was a glitch during a firmware upgrade so I'm looking for a recent BIOS image to reflash with. The Lenovo site provides plenty of EXE and ISO files to recover but of course it won't boot so they're useless.
A search on Badcaps doesn't seem to turn up anything specifically to do this, for example a .BIN file. Going by the designation on the Winbond chip it appears to be an 8mb image.
Am I missing something?Last edited by Ian Slinger; 10-13-2024, 07:59 PM. -
I'm a computer and electronics geek since the 1970s. Starting to get into laptop repairs hence the signup.Leave a comment:
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