MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 Cannot unprotect AM29F040B

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T O P I C    R E V I E W
lek Posted - 05/24/2010 : 22:13:24
I have serveral AMD Flash AM29F040B which have been programed and I want to erase and reprogram these chips. I cannot do anything besides read from these chip. I also tried to unlock (unprotect) but failed. Did I miss anything?

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110.1 KB
2   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 05/26/2010 : 22:34:35
Some chip can not be unprotected.
osvaldo Posted - 05/26/2010 : 20:45:02
When he asks for an ID recognizes it or not. Tested with other chips

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