Here’s the guide to read, reset and Write NEC with CGDI Prog MB Mercedes Benz key programmer.
Dismantle key and desolder NEC chip
Clean PCB and NEC chip before soldering on CGDI NEC adapter
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!!!