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Title: Trouble Writing 24c02 Chip Post by: dbreeze 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: (http://i.imgur.com/m6lWxDVl.png) Half Written: (http://i.imgur.com/ocKiV3Kl.png) 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! Title: Re: Trouble Writing 24c02 Chip Post by: szogun0 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. Title: Re: Trouble Writing 24c02 Chip Post by: dbreeze 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! Title: Re: Trouble Writing 24c02 Chip Post by: dbreeze 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.
Title: Re: Trouble Writing 24c02 Chip Post by: ddillenger on December 14, 2015, 02:04:55 AM Pull it off the board, write it speed 0, or slow.
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