ezs w203 read by xprog - dead?

[labusas]

Car w203, with hc912dg motorola.
Car had one working key.
Read with xprog-m clone (took several tries).
The dump was valid to be accepted to online key generation.
Made new key put EZS back and now NONE of the keys either open ESL or Open EZS.
1. Is this the corrupted eeprom or flash in EZS issue?
2. If I provide eeprom could the compleat set of epprom+flash be provided/fix by anyone?

3. Is there anything else to look for?
I do have star and will go tommorow to scan with it.
Is there a way to make ignition ON for Star?

Thanks a million

[benzstop]

you dont need ignition on to communicate with eis on 203, only on 210 and 202 which you just power up cir 15 at k40

[labusas]

"cir 15 at k40"?
external power to cir50 on EZS or is it star software

[MarkPRP]

Flash is your problem. Find flash from exact part number.

Post part number maybe someone here has it!

[Meat-Head]

DAMM sorry somebody had one recently in the milage IN-correction was basically TWO dud resistors - sorry search

[labusas]

Can you please help with the flash for this Ezs. Pic is attached.
It's from 2003 w203 AMG C32.
EZS 209 545 05 08
2002163610206154

[antibisic]

Can you please help with the flash for this Ezs. Pic is attached.
It's from 2003 w203 AMG C32.
EZS 209 545 05 08
2002163610206154

here is write with rosfar

[labusas]

My rosfar clone couldn't get this mcu Mask 3K91D. Just kept on linking.
Xprog messed it up.
I bought original xprog, comming in 2 days. Hope it will get the job done. Just still not sure if its mandotory to lift extal pin or not with xprog?

[smayer]

My rosfar clone couldn't get this mcu Mask 3K91D. Just kept on linking.
Xprog messed it up.
I bought original xprog, comming in 2 days. Hope it will get the job done. Just still not sure if its mandotory to lift extal pin or not with xprog?

I use xprog-m clone, read, write and verify ok, never have a single problem with this kind of EZS. If you need a dump let me know.
No need lift any pin.
just connect 4 wires plus coaxial cable.

[labusas]

I'm attaching the files:
1. eeprom was accepted by online key calculation, so it's good?
2. flash looks empty
Can this be repaired???

Can the processor be corrupted so It can't be written again?

I tried numerous times now with xprog clone and only twise it finished writing but failed verify.

So I'm waiting for original.

Smayer thanks for you offer, If you could send your flash and I'll compare to what other dk user game me, better to have more than not enough.

[antibisic]

I'm attaching the files:
1. eeprom was accepted by online key calculation, so it's good?
2. flash looks empty
Can this be repaired???

Can the processor be corrupted so It can't be written again?

I tried numerous times now with xprog clone and only twise it finished writing but failed verify.

So I'm waiting for original.

Smayer thanks for you offer, If you could send your flash and I'll compare to what other dk user game me, better to have more than not enough.

I allready sent you working flash and your flash is corupt you only need to put my flash and done

[benzstop]

"cir 15 at k40"?
external power to cir50 on EZS or is it star software

no, that means that you power up ignition on circuit externally at relay module (designated as k40 in wiring diagram) them youo can communicate with older ezs..newer ezs you can communicate with even if key is not inserted. newer ezs do not use hht menu for diag. Hope this helps:beerglass:

[benzstop]

"cir 15 at k40"?
external power to cir50 on EZS or is it star software

no, that means that you power up ignition on circuit externally at relay module (designated as k40 in wiring diagram) them youo can communicate with older ezs..newer ezs you can communicate with even if key is not inserted. newer ezs do not use hht menu for diag. Hope this helps:beerglass:

[bali motor]

write this flash... and write your original eeprom... will solved your problem... old key will work too..

[labusas]

I've received the original xprog in the mail today.
Unfortunately even it couldn't revive the "dead" mcu.
I guess it was killed by failed security pass either by clone rosfar or clone xprog.
The original xprog would finish writing but failed in verity. Tried many times.
Next would be to obtain exact model EZS from wreckers and program my eeprom and one of your's, kind gentlemen" flash.
Thanks again for your input.
Live a day - learn a lot.

[smayer]

You dont need exact part number, If you find beter, but all HC12 Can do the Job.

[labusas]

Could you advise on how to test a key and EZS on the bench, please?
Which pins for negative and positive and if I need the ESL emulator connected?
car is W203, ezs newer 9s12 style.

[smayer]

just need 3 pin connection. GND +12 and k-line to ESL or emulator. I'm not sure about your EZS, but if it's HC12 or ST12, pcb down and plastic mechanism up, left Side of left connector, up pin k-line, second pin from up GND, 3 pin from up +12, hope you understand. My English is not good and I have no time to make a diagram.

[labusas]

Like that, right? Sorry, it's not pretty.
Thanks a lot

[smayer]

Like that, right? Sorry, it's not pretty.
Thanks a lot

Its perfect mate (connection, not design):roflmao::roflmao::roflmao:

[labusas]

Ok, Key is turning when on bench connected like above.
When in the car no reaction like before.
There is no voltage on the + wire of the blue small EZS plug, like in the pic above. I checked all the fuses.
Or is it flash still?

[smayer]

If key turn in bench your ezs is ok. You can test the ESL in car with same connections.

[labusas]

Hi,
ESL is unlocked with Abritus ESL function.
It shouldn't be a factor, should it when connected in the car?
For on the bench test I use ESL emulator.
So if ESL is Unlocked, can it still prevent EZS from turning/working properly?
Sorry mates, but all this benz DAS stuff is too new for an old locksmith here. Please help me out if you can.
Could it be some kind of a relay, I checked the fuses.
Also, in the pic the big plug with 4 wires, only the outside wires have +12V, and the inside both pink wires show no voltage, key in or out. If I jump outside wire to inside dash comes up with ignition on but Star can't communicate with EZS still.

[smayer]

Just check for 12v and GND in ESL and EZS, if you have 12v and GND in the pins form your sketch connect EZS in car and don't mind about ESL is open or closed. If you don't have 12V check fuses. Send car VIN by PM and I send diagram to you.

[dontzapit]

I've received the original xprog in the mail today.
Unfortunately even it couldn't revive the "dead" mcu.
I guess it was killed by failed security pass either by clone rosfar or clone xprog.
The original xprog would finish writing but failed in verity. Tried many times.
Next would be to obtain exact model EZS from wreckers and program my eeprom and one of your's, kind gentlemen" flash.
Thanks again for your input.
Live a day - learn a lot.

did you erase the chip first before writing to it? make sure all pins are definitely clean aswell

[labusas]

No i didn't erase first. Hope that could make a difference when verify fails after writing flash.

[smayer]

don't need erase before writing this MCU, the proof is EZS working in bench. My second clone xprog never fail verify, I pay more but it's really good quality. Later I post photos from pcb.

[labusas]

If eeprom is good but flash bad the key will work on the bench but switch won't turn in the car. That's what is happening by the looks of it.
The mcu was damaged by poking in the areas where shouldn't have while bypassing security. These mcu's are very sensitive to that! Still waiting for a spare to come in...

>>>>>>>>>the proof is EZS working in bench.>>>>>>>>>

[labusas]

Does anyone have a fine tuned to xprog connection points that might work better than the ones used by rosfar?
Please and thanks

[mark.sch]

Does anyone have a fine tuned to xprog connection points that might work better than the ones used by rosfar?
Please and thanks

Had exactly the same issue with xprog on W211 EZS, even worth, in my case eeprom was lost. I ordered Rosfar red clone, is approx $50 more than the blue CAS3, but works perfect. None of several possible soldering points worked with xprog, even soldering all 80 pins directly on bench pcb did not work.
With Rosfar red clone I had not a single verify error - worth the money so far.

[smayer]

I read this ezs always with xprog never have a single problem.
If you dont like rosfar point you can use this..

[labusas]

I don't know if it's a fluke but I have original xprog now and tried reading and writing to "new" used EZS with it and no problem with eeprom but verify error with flash.
Never had this issue with enigma, personally. I'm not an engineer but a locksmith so please take this lightly.
Could this be because the car is freakish AMG C class, and has different protection, flash, etc, because I had no problems with other C w203 before...
In the end the job was not done and taken to the stealers. Thanks for all that helped.
I hope there's a lesson for others with same problem of corrupted flash. Problem is there's no 100% secure in circuit solution, some say xprog corrupts flash, some say rosfar. It sounds like ETL out of circuit is the only sure bet but not so good for real life scenario because requires taking apart switch etc. Try doing it on the side of the road when someone lost the keys and needs to get back home.