4 Steps to Program Benz S500 W221 All Keys Lost with VVDI MB

How-to program Mercedes Benz W500 Year 2008 chassis W221 key with VVDI MB BGA Tool when all keys lost.
Step 1: Read EIS Data
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Choose chassis W221 and read EIS data
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Reading data success.
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Save EIS data
Save HC05 format file
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Step 2: Calculate password
Select Password Calculation
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Select IR mode and chassis W221
Press Data Acquisition
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Connect VVDI OBD cable to OBD on bench before continue
Connect IR adapter to VVDI MB before press OK
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Take out and insert again if already inserted
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Wait until calculate password success
Step 3: Prepare key file
Go to Prepare Key File->Load EIS file
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load EIS file
Select key format v51 and press Prepare Key File
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save key file
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Step 4: Write Key
Go to Read Write Key
Identify key and Load Key file
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load a key file
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choose key file format v51 and press Write
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VVDI MB Tool write key success
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Test EIS status/Working Key->Test working key
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Insert working key to VVDI MB IR reader before press OK
Insert working key to EIS
Insert working key to VVDI-MB IR reader
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Test working key okay.
Start vehicle with the new key.
Done.

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