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 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 Problem Reading 24C02 - please help
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Ronen 722

United Kingdom
8 Posts

Posted - 03/14/2025 :  03:40:11  Show Profile  Reply with Quote
Hi all, I have a true GQ4x4 and have removed the SOC8 chip from an ECU 074 906 021S which is 24C02 and installed it in the adapter and connected the adapter t the programer in the position farthest from the loc lever with the chip indicator dot facing the lever.

I select All generic 24C02 from the device list and then when I read it, it comes back with read complete on 0.7s and the buffer is filled with all FF.

If I do a blank check it comesback blank when it is not.

Any ideas please ?












Reply #1

Ronen 722

United Kingdom
8 Posts

Posted - 03/17/2025 :  04:40:52  Show Profile  Reply with Quote
OK a little update - I red on another forum that this has been a problem for others using the GQ 4X - they also could not get a valid read with device set to 24C02 and managed to get a read of the 24C02 chip by setting the device to 24C08.

I tried this too and then managed to get a read that looks good but has too many rows.

I exect this is some sort of bug or driver problem facing the GQ 4X4 ?

Is there a way to change the file to be compatible with 24C02 ?

Thanks

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Reply #2

anniel

2583 Posts

Posted - 03/17/2025 :  10:18:23  Show Profile  Reply with Quote
quote:
Originally posted by Ronen 722

OK a little update - I red on another forum that this has been a problem for others using the GQ 4X - they also could not get a valid read with device set to 24C02 and managed to get a read of the 24C02 chip by setting the device to 24C08.

I tried this too and then managed to get a read that looks good but has too many rows.

I exect this is some sort of bug or driver problem facing the GQ 4X4 ?

Is there a way to change the file to be compatible with 24C02 ?

Thanks





Try with this:

Name="24C02 5V VCC",ID="XXXX",Class="24C02",Category="SERIAL_EPROM",MFG="ALL(Generic)",VCC="5V";

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