MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X, GQ-3X, GQ-4X)
 AT29C020 Erase Operation Locks chip on GQ-4x
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DarkHelmet

USA
7 Posts

Posted - 11/07/2020 :  17:55:35  Show Profile  Reply with Quote
As stated in the subject, using the erase function on the GQ-4x programmer locks this chip. As stated in a prior thread the AT29C020 protect/unprotect doesn't work in the GQ-4x.

As it stands I have about 50 chips here I can't reprogram due to this. Is there any soultion to this?
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