Program Mercedes W221 key with CGDI Prog MB Key Programmer

CGDI Prog MB is a new released professional Mercedes-Benz key programmer, working as well as Xhorse VVDI MB Tool.  CGDI MB comes with 2 free tokens each day and calculate the password online super fast.

 

(5 steps, 20 minutes)

Step 1: Preparation

Step 2: Read and save EIS data

Step 3: Calculate password

Step 4: Make file key

Step 5: Write data into the key

 

Procedure:

Step 1: Preparation & ready for 221MTS key programming

Finish connection of CGDI Porg MB to the laptop and the car

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Run CGDI Prog MB software

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Step 2: Read and save EIS data

Go to EIS: read EIS and save EIS data

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Step 3: Calculate password

Calculate password: collect data

(the car voltage should be more the 11.5V)

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Remove the key from EIS, then click on OK

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Again remove the key from EIS, then click on OK

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Remove the key for 5 seconds, then insert it into EIS, then OK

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Put the key into the CGDI Porg MB key programmer, then OK

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Save data, then upload data to calculate password

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Search for the result

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Copy the password

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Go to EIS: read EIS, paste password, then save data

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Step 4: Make key file

Generate EE: load EIS and make key file

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Step 5: Write data into the key

Read & write key: read key/chip data, reset, open/write key

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Important note:

smart key: format 41, normal key or key from deputy factories: format 51

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CGDI Prog Write data into the key successfully

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Step 6: Check if the key is work or not

Test the key and it’s working

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Job’s done!

 

 

Reference:

1.

CGDI Prog MB Key programmer user manual

2.

VVDI MB BGA TOOL program W221 keys tips

 

To add new keys to W221 when it lost all keys, you can do like this:
remove W221 EIS,

get eeprom by programmer (such as VVDI PROG),

then load eeprom to VVDI MB TOOL to prepare key file,

write key and insert to EIS for key learn.

 

(src: http://blog.obdii365.com/2017/01/22/mercedes-w221-all-keys-lost-solved-by-vvdi-mb-vvdi-prog/)

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