How-to: add an old Motorola key to a Mercedes Benz W220 S500 year 2001 using Xhorse VVDI Prog and VVDI MB Tool.
Step 1: Read key data with VVDI Prog
Remove key board from original key
Connect key pcb board with vvdi prog through MCU cable
In VVDI-Prog software, select 4-Immobilizer-Benz-HC05E6_REMOTE (0F82B) to read
Read data success
Step 2: Write BE key with VVDI MB
Insert new vvdi BE key pro into vvdi mb programmer
Open VVDI MB software, select Other Function-> Old Motorola Key
Press Load File and upload data read by vvdiprog
Read data success including key password
Save key file i.e key_Motorola.bin
Go to Read Write Key->Load Key File
Upload key file key_Motorola.bin, press Write
Write key success.
Press Identification Key and Read BE key password
Key password is correct.
VVDI MB Tool successfully write a new BE key.
Test the new key. It works.