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)
 S29GL064 and GX-4X
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nihonsx5

4 Posts

Posted - 02/21/2014 :  15:41:40  Show Profile  Reply with Quote
Hi,

I received S29GL064N90TFI040 chips. With GQ-4X, I can erase, read the chip but I can't write to it. I always have an error (in the beginning of writing). See picture attached.

I have the adapter ADP-072 + ADP-077.
I configure J4 on "ON", J2 on "29F", and J1 on "5V". I tried with a few chips, same results...

I tried with 6.25, 6.26 and 6.27 software versions, different speed, and with/without Temp Unprotect.

When It failed, I tried to read the chip, and there are informations until offset 3FFF.

Any Ideas ?

Thank you.

Image Insert:

2.79 KB
Reply #1

ZLM

2937 Posts

Posted - 02/21/2014 :  23:54:22  Show Profile  Reply with Quote
It seems you have pin contact problems on A13. Check that pin.

Also, make sure you have set jumper correctly on ADP-003.
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Reply #2

nihonsx5

4 Posts

Posted - 02/22/2014 :  00:35:09  Show Profile  Reply with Quote
I checked all pins on the ADP077 and I redid the welds. For now, it seems to work (burning 30%).
Adapters are not tested before being sold ?


Edit : 100% write + verify OK.

Edited by - nihonsx5 on 02/22/2014 01:09:47
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Reply #3

ZLM

2937 Posts

Posted - 02/25/2014 :  21:39:11  Show Profile  Reply with Quote
Good to know that.
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