yes, have managed to erase the 'dud' chips, there is a technique - like plug them in, activate hold on reset, unplug then plug in again and erase twice - but it works at least!
yes, have managed to erase the 'dud' chips, there is a technique - like plug them in, activate hold on reset, unplug then plug in again and erase twice - but it works at least!
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