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)
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Rich

United Kingdom
7 Posts
Posted - 08/07/2013 :  07:22:57  Show Profile  Reply with Quote
Hi

I have had a GQ-4X programmer for years now and its always been great, for some reason recently it has not read a couple of 24C128 eeproms, different PCBs but the same product. Is there a way of protecting the chip so the hex can not be read ?

Thanks
Reply #1

Rich

United Kingdom
7 Posts
Posted - 08/08/2013 :  09:13:03  Show Profile  Reply with Quote
Just to add the exact number of the chip is.

24C128LI (CSI)
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Reply #2

ZLM

2945 Posts
Posted - 08/08/2013 :  13:40:37  Show Profile  Reply with Quote
If you are sure the chips are good, then check the pin contacting and slowdown the speed.
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Reply #3

Rich

United Kingdom
7 Posts
Posted - 08/08/2013 :  23:13:43  Show Profile  Reply with Quote
100 % chip is fine, comes from a bootable control panel.

Why do you slow down the speed?
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Reply #4

ZLM

2945 Posts
Posted - 08/10/2013 :  07:09:30  Show Profile  Reply with Quote
slow down the speed only for reducing the chances on hardware compatibility problem. If this still does not solve the problem, then we need a detailed testing to find out the problem.
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Reply #5

Rich

United Kingdom
7 Posts
Posted - 08/10/2013 :  08:44:16  Show Profile  Reply with Quote
Sorry, meant where / how do you slow the speed down?
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Reply #6

Rich

United Kingdom
7 Posts
Posted - 08/10/2013 :  11:45:13  Show Profile  Reply with Quote
Doh.........having a moment, ignore the above post. Reads fine now
Edited by - Rich on 08/10/2013 11:45:48
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