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How to Read, Reset and Write NEC Chip with CGDI MB

Here’s the guide to read, reset and Write NEC with CGDI Prog Mercedes Benz key programmer.

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Dismantle key and desolder NEC chip

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Clean PCB and NEC chip before soldering on CGDI NEC adapter

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Identify NEC chip and solder onto NEC-board

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Select NEC adapter and corresponding chip type

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Read Key/Chip

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Reset NEC chip

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Reset success

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If you have saved key files, click Open/Write, select a key file

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Write success
Back to click on Read Key/Chip to confirm NEC chip status

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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.

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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!!!

How to read, clear and write NEC Chip with CGDI MB

This post will guide you how to read, clear and write NEC Chip with CGDI MB Programmer.

Steps:

1. Dismantle key and desolder NEC chip

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2. Clean PCB and NEC chip before welding back on board

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3. Identify NEC Chip and weld onto NEC-board

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4. Select “NEC adapter” and corresponding chip-type

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5. Click “read key/chip”

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6. Click “Reset”
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7. If you have already key-files click “Open/Write”

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8. Click “Read key/chip” to confirm whether the write successfully or not.
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Done!