MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 Cannot unprotect AM29F040B		  New Topic  Reply to Topic
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lek

USA
1 Posts
Posted - 05/24/2010 :  22:13:24  Show Profile  Reply with Quote
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?

Image Insert:

110.1 KB
Reply #1

osvaldo

Argentina
148 Posts
Posted - 05/26/2010 :  20:45:02  Show Profile  Reply with Quote
When he asks for an ID recognizes it or not. Tested with other chips
osvaldo tecnico
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Reply #2

ZLM

2945 Posts
Posted - 05/26/2010 :  22:34:35  Show Profile  Reply with Quote
Some chip can not be unprotected.
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