MB W204 ESL damaged, NEC ESL defective (Solved)

Question: My Mercedes-Benz W204 ESL is damaged and the NEC ESL is defective, how to do?

I have all, key password from v57 key, have erase password, ssid, eis data, ESL data…

I’m trying to renew ESL with VVDI MB BGA TOOL key programmer.
It gives me error, tried to unlock w204 ESL with button, and it’s trying more than 600 times but no joy

What can I do?
I’m trying to do this procedure:

1 EIS: get key password, get erase password ———————-OK
2 EIS: save EIS data with Both Passwords——————————OK
3 EIS: renew EIS——————————————————–NOT YET, IM TRIYING RENEW ELV WITH ADAPTOR
4 EIS: write saved EIS data——————————————–SAME
5 ESL/ELV: renew ELV————————————————–IM IN THIS STEP WITH ESL NEC ADAPTOR
6 EIS: in EIS personalize ESL/ELV
7 Car: Insert Key all should work

 

When I try check ESL damage it says:ESL is locked!(maybe damaged)

So if i renew eis and try to personalize, i don’t think it will solve anything, i must clear or renew esl. Following 3 pieces of screenshots, when try to unlock esl it can try till 2000+ times and it wont unlock it. Renew gives me instant error (can be seen on bottom)

edit…

After some attempts I finally unlocked it and esl is unlock.

esl-locked renew-esl-error unlock-esl

Update…

Successful…

I had sometimes fail and I try again and again

I had some keynotes maybe it helps someone

-for renew EIS I had to do on bench, on car I couldn’t (even with Kline esl)

– when read v57 key psw with esl adapter it corrupted nec or something, I cannot open with remote and in dashboard said matching key (or similar) and waited a lot but don’t match. Key not working… soooo desolder again, renew nec and write 051 key, and it went perfect, notice that was v57 keyless key

-very important to do steps fill password key and get erase key when you write

 

-for unlock esl i had to stop and start again till 800 approx at fourth time it went OK and it did successfully.

VVDI MB TOOL + EIS/ELV Test Line + NEC Key Adaptor

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