MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X, GQ-3X, GQ-4X)
 Cannot read or Write to sst39sf010a

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digress Posted - 10/25/2014 : 16:37:14
When I id the chip it will read manufacturer as sst and that's all

I read a bin file from it but it's not what is supporsed to be there. It is garbeled and not the correct data.

I cannot write to it at all even after erase.

write failed, address=0x000000, buffer=0x55, device=0xFF

Have tried over 5 brand new chips that were programmed on another programmer successfully.
5   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 06/18/2015 : 17:47:57
This line was tested with my GQ-4X. It worked. So, check your chip.

If are not sure, then you can send one of your chip to me, I check it for you.
Teepee Posted - 06/16/2015 : 08:38:45
Thanks! Sadly though, that doesn't seem to make any difference. For what it's worth, on mine, the ID comes up as FFFF on all of mine. Is it possible there's some sort of pinout mismatch?
ZLM Posted - 06/15/2015 : 16:50:41

Add following lines into devices.txt


Select SST39SF010A from software then.
Teepee Posted - 06/15/2015 : 12:01:14
Is this a known issue? I'm having the same issue with brand new 39SF010As too.
ZLM Posted - 10/29/2014 : 11:55:23
This chip should not have problem. If you can send a testing chip, then the problem can be found.

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