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Author Topic: Trouble Writing 24c02 Chip  (Read 4134 times)
dbreeze
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« on: November 21, 2015, 12:15:20 AM »

Hey everyone,

I'm having some trouble trying to write to a 24c02 out of a 2001 2.0l Beetle ME5.9 ECU (06A 906 018 EQ).

I'm able to read the chip perfectly fine, but when I go to write to it, I am unable to write them.

After some testing I found that I can write to "half" of the chip, see below:

Original:


Half Written:


I have tried grounding the WP (pin 7) to make sure that the Write Protect is disabled but I get the same results.

Any ideas what's going on / what I'm doing wrong? I'm using WLPRO with an SP200SE Chip Programmer to flash the chip.

Thanks in advance!
« Last Edit: November 21, 2015, 12:21:34 AM by dbreeze » Logged
szogun0
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« Reply #1 on: November 22, 2015, 04:43:34 AM »

Try to clean legs, sometimes there is bad contact.
Change this chip.
Some of them can't be programmed.
I'm always changing 24c02 with new one.
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dbreeze
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« Reply #2 on: November 22, 2015, 08:38:31 AM »

Thanks, I don't think it's a bad contact as I have it soldered to an adapter for my chip programmer.

I was wondering if some of them might not be able to be programmed.

Thanks for the tips!
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dbreeze
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« Reply #3 on: December 13, 2015, 10:24:28 PM »

Forget to update this in case it helps someone in the future. Needed to replace the chip with a blank one. I was then able to write whatever and as many times as needed.
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ddillenger
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« Reply #4 on: December 14, 2015, 02:04:55 AM »

Pull it off the board, write it speed 0, or slow.
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