MCUmall EPROM BIOS Chip Burner Forum - GQ4X: Read Works, Write Fails: AM27C010

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GQ4X: Read Works, Write Fails: AM27C010

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laanguiano

USA
1 Posts

Posted - 06/25/2016 : 11:23:46

I read 2 other of the same EPROM type, and they read fine. This one read blank. So i figured this one needed to be re-written. Loaded a bin File, checked blank, made sure correct device was selected. and hit write (tried various speeds), and got an error.

Its plugged into back of PC, with power supply attached. Also i did the voltage diagnostic test and it came back fine.

Any clues/??

Here are pictures of the fail screens

https://drive.google.com/folderview?id=0B_BNDhLd8jmBanV2SmVERnM2ZGc&usp=sharing

Edited by - laanguiano on 06/25/2016 11:28:01

Reply #1

anniel

2572 Posts

Posted - 06/25/2016 : 13:02:23

Bad contact or bad chip.

Reply #2

ZLM

2945 Posts

Posted - 06/25/2016 : 21:57:21

You should be able to red chip ID.

If ID is wrong, then you need to find out why.

You do not need the external power supply. The USB power is good enough.

Reply #3

Brumby

Australia
1 Posts

Posted - 07/02/2016 : 01:47:47

I have the same issue with 4x4 with 27sf010 27c010 Eproms.( Have tried 10 chips same result Fail instant on write. My previous 4x used to work fine

Reply #4

ZLM

2945 Posts

Posted - 07/02/2016 : 13:54:20

What is the exact error message?

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