Dead BMW E46 Cluster - Revival Possible?

[venceslau]

Hello all!

I read M35080(3) EEPROM from BMW E46 cluster and I can't get cluster to work anymore.

I was trying to zero the KM/VIN using xprog. Tried restoring EEPROM backup but unit still not working correctly.

Nothing works, only the ABS light comes on. If I apply power to the backlight pin, the backlights come on but I am unable to communicate using diagnostic cable.

Cluster came off my parted 325xi and had been sitting outside in -30 C but everything worked fine before.

Any ideas? Thanks in advance

[sagie]

maybe post original here to check and mod also

[venceslau]

maybe post original here to check and mod also

Here are the bins.

Also worth noting is that I did not use the Xprog M35080 adapter board, I used the SOP8 pins directly.

Thanks again

[morgano]

If you read on board without desolder the eeprom is possible data become corrupted.

[venceslau]

If you read on board without desolder the eeprom is possible data become corrupted.I desoldered eeprom and used SOP8 connector on xprog. How can I know if eeprom is corrupted? Thanks

Sent from my A0001 using Tapatalk

[morgano]

If you desoldered and made good connection to programmer chances to have a bad read are low, xprog normally reads and verify the device.

I woukd check in dash pcb near eeprom place if all components still well soldered and no tin drop is anywhere making a shortcut.

Review with magnifying glass.

[venceslau]

If you desoldered and made good connection to programmer chances to have a bad read are low, xprog normally reads and verify the device.

I woukd check in dash pcb near eeprom place if all components still well soldered and no tin drop is anywhere making a shortcut.

Review with magnifying glass.

I was already looking and couldn't find anything obvious. Tomorrow I will have a better look under microscope.

[venceslau]

If you desoldered and made good connection to programmer chances to have a bad read are low, xprog normally reads and verify the device.

I woukd check in dash pcb near eeprom place if all components still well soldered and no tin drop is anywhere making a shortcut.

Review with magnifying glass.

So I double checked the board and cannot find anything obvious. I will say, that I did not take a picture before removing the chip and am not 100% sure if I put it on the correct pads and in the right orientation. I looked up the data sheet and saw that pin 1 was ground so I found ground pin on board and put in that orientation. I'm 99% I put it in correctly, but since I didn't take a picture before I can't be sure.

Does it make difference to use xprog M35080 ICP adapter board or simply using the SOP8 pinout going directly to EEPROM?

[morgano]

It should not make difference with desoldered eeprom.

[venceslau]

It should not make difference with desoldered eeprom.

OK, thanks. I'm glad this was just a spare because looks like I killed it somehow.
Going to try WinKFP to see if it's able to flash it. Fingers crossed.

[morgano]

have just looked to the ori eeprom reading, looks ok to me. But the virgin one is not virgin, it is BLANK/ERASED. Don't think that "that virgin dump" can make the dashboard work at all.

[morgano]

How many KM did the dash show before you tried to do anything? around 150K or around 300K?

Nevermind, this eep should be the good to make dash 0 Km. Try it before make other mess ;)

[venceslau]

have just looked to the ori eeprom reading, looks ok to me. But the virgin one is not virgin, it is BLANK/ERASED. Don't think that "that virgin dump" can make the dashboard work at all.

Ya, I'm not sure if that is VIRGIN state or not. I just followed the instructions for M35080 in Xprog. Said to 00 first 16 bytes and FF the rest.

The cluster showed approximately 313 thousand km.

Thanks again

[morgano]

Ya, I'm not sure if that is VIRGIN state or not. I just followed the instructions for M35080 in Xprog. Said to 00 first 16 bytes and FF the rest.

The cluster showed approximately 313 thousand km.

Thanks again

look previous post ;) added 0Km dump

[venceslau]

How many KM did the dash show before you tried to do anything? around 150K or around 300K?

Nevermind, this eep should be the good to make dash 0 Km. Try it before make other mess ;)

Thank you for dump! Did you just zero first 16 bytes?
I tried this also and didn't work. If you change something else I can try again.

[morgano]

Yes there km stored, on incremental registers.