Hello, I have a problem with starting my laptop. I got a laptop that doesn't start. It turned out that it was flooded with liquid. I removed the corrosion, replaced the damaged elements and the laptop started. Before I understood what the problem was, I uploaded a new BIOS with a clean ME region downloaded from this forum. The laptop started and worked. However, I decided to upload the original BIOS back. I cleared the ME REGION in it and uploaded it to the chip. After this procedure, the laptop stopped starting. It uses 6 watts constantly without any changes. Also, uploading back the BIOS with which it started after repair doesn't help. Is it possible the KBC chip is bricked? I don't have a programmer for KBC systems. Do you have any ideas? Thanks!
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KBC firmware is unlikely to be corrupt. Check whether chip is properly soldered and do check for any missing resistors nearby. -
I have checked this before. Everything with resistors and capasitors is fine. Like I said before flashing it was working properly. So i need to find a way to flash KBC it seems...Comment
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Is the EC rom internal or external on this board? My database shows a dump for this model which I can post if needed.
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Post the original bios backup in the bios requests forum - https://www.badcaps.net/forum/troubl...-requests-only ,and post the laptop serial number (type it please) ,and also post a picture of the barcode sticker on the ram slotOriginally posted by kraZZeman View PostComment
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I'm sorry, but because I don't have any programmer for KBC I don''t have enough knowledge about what it means internal or external ROM.Originally posted by mon2 View PostIs the EC rom internal or external on this board? My database shows a dump for this model which I can post if needed.
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Wait on others to comment but from this video, the EC ROM chip is an external part. That is, the EC controller = KB9026Q is the controller and it uses the external Winbond chip to hold the firmware (program). If indeed, this external flash device is corrupted, then a known good EC rom dump should be suitable to apply onto this target flash chip.
https://www.youtube.com/watch?v=CgDV2oxQhsI
This YT video is using the u-Link NT Programming tool and from a quick Aliexpress search, someone is attempting to gouge the buyer @ $3k for this device worth about $5. Suspecting there are many options to reflash this target memory device including the option to remove this flash chip -> program with the device with a low cost tool and then solder it back.
Confirm if you have this flash device on your board like showing in the video when he flips the board over.Comment
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Once again i'm saying its not EC bios. EC has a separate flash chip and the ec bios is not pulled from main bios in this case.
Since you only flashed main bios, it has nothing to do with ec bios.
Rather, look carefully at liquid spill area and you may get a clue.Comment
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