don166
Member
Last Activity: Yesterday, 04:27 PM
Joined: 02-10-2024
Location: Fort Myers, FL
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It's been a while since my last post on this GD25R256EY chip problem but I haven't completely given up yet. I tried SMDFlea's suggestion using CH341A v1.7 programmer forcing W25Q256FV, but no joy on that. I then bought the latest XGecu T76 programmer, which has this GD chip on its support list. But the only package listed is [USER="272638"]soic8[/USER], not @WSON8 (6mmx8mm). When I tried to read it, I always got the "Check ID error" message and unticking the Check ID and Verify after options resulted in a meaningless dump with all zeros. Same result selecting Winbond W25Q256FV... -
Pogo adapter, latest T48 software and this GD chip is not in the latest support list. And no, I don't have another programmer. The code might be gibberish but the laptop boots normally to BIOS and shows it's locked with an 8FC8 suffix. Searching on P/N GD25R256EYIG I found a site that seemed to suggest that expensive BeeHive or BeeProg devices are the only programmers that support this GD P/N. Is it possible a similar 8-bit T48-supported GD chip might be close enough to try? Thank for trying to help. Don
[ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3534125}[/ATTACH]...Leave a comment:
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Thank you SMDFlea for your comments. I use an XGenu Pro T48 programmer, which supports GD25R256E (but maybe not GD25R256EYIG, the full PN on top of this chip). The laptop was manufactured in 2022 so maybe the T48 doesn't support it. I've looked all over both sides of the MOBO and don't see another 8-bit chip that might be the BIOS. There is an itty-bitty 3mm x 3mm chip (P/N X49C/5027, location UC5; I've seen UC5 on other Dell MOBOs to locate larger common GD/XMC/WB/MX 8-bit BIOS chips). Could that be it? DonLeave a comment:
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I have read this chip 10 times and all dumps are identical so what I posted at first is the actual contents of this BIOS chip - and corrupt contents evidently. And since I bought the laptop as-is to refurbish, I don't have a good backup. But even if it's correctable in that state, I don't know enough about programming to do that. And if it's not, what about a generic, clean, non-service tag specific BIOS file for the Dell Latitude 3140 model? Would any expert on BadCaps have such a file I could download and load? It would seem my only options at this point are: 1) Hope some one posts a clean .bin...Leave a comment:
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Back to my 8FC8 locked Dell Latitude 3140 dilemma. With online help, I have the extracted HDR.bin file (29MB) from the Dell .exe file for this particular laptop (ST 3LY6TW3). Now I need to have it converted to a valid (and hopefully usable) 32MB .bin to load that might unlock the BIOS. I know it's risky and might not work but at this point I'm willing to accept a bad result that bricks the laptop. Can anyone help with this? Original dump above. HDR rar attached. Don...Leave a comment:
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Thank you rex98, but if your patcher just replaces 00 FC AA and 00 FD AA with 00 FC 00 and 00 FD 00, it won't work for me since I already know this BIOS does not contain either of these hex strings. I did run it and now I will go to a Philippine neighbor to translate the Tagalog text in the dos screen to English, which will probably says it could not find the unlock hex. You have helped me here in the past and I thank you again for you commitment at badcaps. Don...
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Dell Latitude 3140 bios
Hoping I can get 8FC8 unlock help on this thread since I cannot find an open one for a Dell Latitude 3140.
Service Tag 3LY6TW3-8FC8
MOBO LA-M501P
I've tried reprogramming the 8-bit BIOS chip (GigaDevice 25R256EY) myself by searching for 00 FC AA / 00 FD AA but it's nowhere to be found so I'm turning to the badcaps experts.
It is different from other Dell 8-bit BIOS chips I have unlocked before. 1) Size is 32774 KB, not 32768 KB; and 2) It compresses to a very small file (154 KB), not 11-12 KB as other 8-bit Dell chips. Can someone please tell me what I'm missing?... -
Thank you.Leave a comment:
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Need help unlocking a Dell Latitude 7300 with 8FC8 lock: ST HHL33X2-8FC8; MOBO LA-G861P. Dump attached. Also donated 25USD for all the good work you guys do. Thanks. [ATTACH]n3323310[/ATTACH]...Leave a comment:
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Would love to learn. Point me to a good tutorial please. DonLeave a comment:
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Need help with a locked Dell Latitude 5400 (ST 4TGSYY2-8FC8; MOBO G892P). Dump attached. Thank you. [ATTACH]n3286502[/ATTACH]...Leave a comment:
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Thank you once again for the help.Leave a comment:
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Need help unlocking two Dell 7300 laptops with 8FC8 locks. STs J30YP13 and CJ9NQ13; MOBOs LA-G861P. Dumps attached. Thank you. [ATTACH]n3284176[/ATTACH]...Leave a comment:
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I have two 8FC8 locked Dell Latitude 7400 laptops (STs 34XHP13 and H65HP13; MOBOs LA-G871P). Can someone please unlock? Dumps are attached. Thank you. [ATTACH]n3283435[/ATTACH]...Leave a comment:
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Worked - thank you.Leave a comment:
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Help please unlocking Dell Latitude 7300 BIOS (ST 5T15H53, MOBO LA-G871P) with 8FC8 lock. Dump attached. Thank you. [ATTACH]n3278491[/ATTACH]...Leave a comment:
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Sorry hoaca388 but your unlock file didn't work - BIOS is still locked. I will attach the second dump file (I did it three times) and perhaps you could try again. Thank you. [ATTACH]n3277438[/ATTACH]...Leave a comment:
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Please help with a Dell Latitude 5401 BIOS 8FC8 lock (ST BPTM733, MOBO LA-H171P). Dump attached. Thank you. [ATTACH]n3276868[/ATTACH]...Leave a comment:
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Have a Dell Latitude 5410 with 8FC8 locked BIOS (ST 34VH253, MOBO LA-J371P). Can someone please help unlock? Dump attached. Thank you. [ATTACH]n3265952[/ATTACH]...Leave a comment:
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Looking for help unlocking a Dell Latitude 7400 BIOS with an 8FC8 lock. ST FCF5L33; MOBO P/N 0M2JD3. BIOS dump is attached. Thank you again to all those who make BadCaps a great forum. [ATTACH]n3263961[/ATTACH]...Leave a comment:
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