Xhorse Mercedes smart key frequency change: How to?
Here you go.
First you should have a Mercedes smart key by Xhorse:
Then Connect VVDI MB TOOL with the laptop
And run VVDI MB program
Put the key into VVDI MB
Set up key frequency
Read key frequency
Set up key frequency:433MHz
Test the key frequency; it’s 433MHz
Put it into VVDI MB TOOL and read key frequency
The same method to set up key frequency: 315MHz