Path: Immo programming >> Europe >> Benz >> Select from system >> Read write key >> VVDI BE key >> Start programming
Insert Xhorse BE Key Pro into VVDI Key Tool Plus infrared remote port.
Read BE key frequency at first.
This key frequency is 315Mhz.
Go back to set BE key frequency.
Here’s allowed to set 315Mhz or 433Mhz.
Click on 433Mhz.
Set frequency success!
Check BE key frequency again.
It has been changed to 433Mhz.
Quite an easy job, 1 minute is enough.
You can also change the frequency by removing the resistor.