How to install VVDI Smart Key FBS3 with Key Shell?

Xhorse VVDI MB FBS3 BGA KeylessGo Key 315MHZ/433MHZ for Benz W164 W166 W204 W207 W212 W221,it is new arrival benz smart key from Xhorse brand.

And we also have key shell,then you can buy VVDI smart key+key shell to be a complete key. Here is the steps how to install vvdi smart key into key shell.

1 Open the battery cover and install the battery

2.Put the VVDI smart key FBS3 PCB.

3. Close the back cover

4.Insert the metal edges

5.Match the key and test whether the key function is working OK. Press the remote control button to see if the light is on.

6.Install the key blade and spring

7.Install the tail pin

8.Install the plastic card

9.Key blade

10.Finish.