Here’s the guide to read, reset and Write NEC with CGDI Prog Mercedes Benz key programmer.
Dismantle key and desolder NEC chip
If you have saved key files, click Open/Write, select a key file
Back to click on Read Key/Chip to confirm NEC chip status
CGDI MB write NEC chip success.
Note: If you need to repair Mercedes W204 207 212 ESL/ELV when NEC broken with CGDI MB, you need a Benz W204 ESL/ELV NEC chip for adaptation no need renew EIS.
Step 1 : replace with our new nec chip
Step 2: assemble back ESL
Step 3: read EIS data and save
Step 4: renew ESL and the erase password is all 1
Step 5: load eis data and password,tick auto clear tp and personalise and press write And job is done !
No need for EIS renew!!!
No need to wait hours for disabled NEC chip to renew !!!
Adaptation done within a minute!!!