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)
 AM29F200BB using GQ4X and new adaptor
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Yaser Jafar

Canada
3 Posts

Posted - 05/29/2016 :  18:35:02  Show Profile  Reply with Quote
I set it for AM29 and 5V, then I read, and I get all FFs.

Any idea?
Reply #1

stevocz

Slovakia
25 Posts

Posted - 05/30/2016 :  04:35:28  Show Profile  Reply with Quote
you chip/adapter has wrong orientation or chip has bad connection between pins and adapter.

chip ID is read correct?

gq-4x4, gq-4x, willem usb/lpt

Edited by - stevocz on 05/30/2016 22:09:27
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Reply #2

Yaser Jafar

Canada
3 Posts

Posted - 05/30/2016 :  16:01:48  Show Profile  Reply with Quote
No, chip ID not read correctly. FFFF ID
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Reply #3

anniel

2150 Posts

Posted - 05/30/2016 :  16:09:57  Show Profile  Reply with Quote
Bad contact or bad chip. Is the chip from a working unit?
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Reply #4

Yaser Jafar

Canada
3 Posts

Posted - 05/30/2016 :  17:34:26  Show Profile  Reply with Quote
Yes from a working Transmission Control Unit from BMW.

Would the programmer erase the code in the unit if no contact?
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Reply #5

stevocz

Slovakia
25 Posts

Posted - 05/30/2016 :  22:17:54  Show Profile  Reply with Quote
yes, it can erase but not all data (only data where pin has correct connection).

Do you have right orientation (pin1 of chip to pin1 of adapter?)
Try a little bend the pins. Chip ID must be correctly readed.

gq-4x4, gq-4x, willem usb/lpt

Edited by - stevocz on 05/30/2016 22:23:14
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