
VVDI BE KEY One Start Keyless Go 315Mhz/433Mhz MB FBS3 Smart Key For Benz W164 W166 W216 W221 W251
Highlights of Xhorse MB FBS3 BGA KeylessGo Key
1. Work on W204 W207 W212 W164 W166 W221
2. Support exchange frequence 433/315mhz
3. Keyless entry + Push Button Start
4. No need battery insertion for writing data by infrared
5. Stable & Reliable
No need battery insertion for writing data by infrared
Support exchange frequence between 433Mhz / 315Mhz
Method 1:
If you have VVDI MB Tool, it is easy to change frequency in vvdi mb software (update software to latest version)
Select Other Function-> Set key remote frequency/ Update MB smart key
You can set frequency between 315MHz and 433MHz

Method 2:
If without VVDI MB, you can change FBS3 keylessgo smart key frequency manually by soldering / desoldering the FRE resistor (marked red in picture below)























