W210 EZS problem

[metalik]

Hi all i have problem with W210 ezs. The old key stop working i make new key but it cant synchro, red led blinking. I read 2 mcu 1H52A, i think problem is eprom. Someone can fix dump?
w210 1h52.rar

[daxxer]

Hi all i have problem with W210 ezs. The old key stop working i make new key but it cant synchro, red led blinking. I read 2 mcu 1H52A, i think problem is eprom. Someone can fix dump?
w210 1h52.rar

what tool you use for reading ??? dump from mcu1 is corrupted...

[Jan1980]

I repaired the dumps ! I think, you have also a problem with your EIS itself. Buy a donor EIS with same partnumber and write the repaired files to the MCU?s. There are not only eproms in the mcu?s. These MCU?s have ROM. You are not able to read and write new MCU?s. So, get donor EIS and write repaired eproms back. Press THX and REP...

w210repaired.rar

[metalik]

hello, i write repaired dump from Jan1980 to the new EIS and its working. Thx a lot for help

[metalik]

Hello new W210 and new problem, key stop working, i make new key car start but dont work central locking, blinker. I read again mcu 1 and 2, i think somethink is corrupt in eprom. Semeone can help me ?
w210 .rar

[narkeleptk]

Hello new W210 and new problem, key stop working, i make new key car start but dont work central locking, blinker. I read again mcu 1 and 2, i think somethink is corrupt in eprom. Semeone can help me ?
w210 .rar

looks ok to me.
Sounds like a bad/bridged solder joint or corrupted flash possibly. Both will cause issues with canbus like you listed.
In my experience if key turns switch its not going to be an issue in the eeprom data.

[metalik]

Hello i solve my problem. I make new key from mcu2 and ewerythink working. 😀

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