Here is the detail steps:
Put the transponder into coil position of Mini Key Tool
Tap Transponder Clone to detect
The transponder read out is BMW F series 868 MHz CAS4+ (EWS5) PCF7945P
The status is ‘Already locked’.
Dismantle the BMW transponder
Connect VVDI Mini Key Tool and BMW chip with the professional remote renew soldering cable according to the connection diagram in the Xhorse APP
Go to Special Function
Tap Remote Renew>> BMW>> 5WK49661 F Series 868MHz Continental>> Unlock
Renew (unlock) success
3. Check transponder
Back to the main menu and select Transponder Clone to read again
Now the transponder status read out is Unlocked.