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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > R270 help please



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      08-03-2024, 03:31 AM   #1
PaddyH
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Hi,
I’m very new to this and am attempting to Virginize a gauge cluster from an e9x via an R270+.
I found it quite difficult to work out which way to connect the wires from the R270 board to the test clip but after some messing around I managed to get my laptop to read the eeprom. My problem is that every reading just says 00 there are no numbers at all.
I’m very frustrated with it all.
Any help or ideas would be greatly appreciated.
Thanks
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      08-03-2024, 04:41 AM   #2
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080D0WQ? It's not connecting properly. Swab the legs of the eeprom with alcohol, see how you go.

Also ive had better luck when you skip the pin check, Its check doesnt seem reliable.
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      08-03-2024, 05:00 AM   #3
PaddyH
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Yeah that’s the chip!
I will give it a go. Thank you.
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      08-03-2024, 05:40 AM   #4
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Quote:
Originally Posted by PaddyH View Post
Yeah that’s the chip!
I will give it a go. Thank you.
Oh, and make sure you solder the small sub board on the backside where the pins go through

Last edited by eastsidaz; 08-03-2024 at 06:09 AM..
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      08-03-2024, 08:09 AM   #5
PaddyH
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I had a friend solder that for me. It looks good and, as I said, it’s definitely been reading the chip but……….. I have ‘continuity’ between 6 of the 8 pins he soldered. This doesn’t seem right??
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      08-04-2024, 04:58 AM   #6
PaddyH
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I tried giving the pins a clean and skipped the pin test but still just get this…….
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      08-04-2024, 06:00 AM   #7
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No sure about pin 6&8 being connected. Did you remove that resistor on the r270 board? Yellow one as pictured.
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Last edited by eastsidaz; 08-04-2024 at 06:13 AM..
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      08-04-2024, 08:39 AM   #8
PaddyH
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No I haven’t. Will try that next. Thank you
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      08-04-2024, 05:15 PM   #9
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Quote:
Originally Posted by PaddyH View Post
No I haven’t. Will try that next. Thank you
Im sure you have seen the video https://www.youtube.com/watch?v=VSjGOXzRUz4
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      08-05-2024, 02:16 PM   #10
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I have yes, was definitely worth watching again though. Thx.
I have removed the resistor and am still having the same problems. I’m thinking my ‘red board’ is probably duff. Well, that or the new cluster. Will remove my own cluster from my car next and see if it reads that chip.
Cheers
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      08-07-2024, 01:13 PM   #11
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Been on the same path even pain some1 over the internet to rework my bord for 50$ still haven't managed to read/erase/write a single chip even 080. I have done everything as it goes for mods and still no luck guess the chinese board don't work!
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      08-07-2024, 02:02 PM   #12
PaddyH
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I’m frustrated with it all.
I’m convinced I have an issue with my cluster and need a virginised one to find out for sure.
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      08-07-2024, 03:44 PM   #13
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What is your issue exactly?
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      08-07-2024, 04:23 PM   #14
PaddyH
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With the r270? I can read my chip but I just get all zeros.
I reinstalled the software tonight as an administrator and now can see the pictures of the various chips but still all just zeros.
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