In this article, we are going to show you how to repair a centralization for BMW X5 Accus by Key Tool Max.
Step 1. Replace Battery Compartment
Desolder these 2 points that match two closed legs on battery compartment.
Turn it around and remove battery compartment.
Install and resolder new battery compartment.
Install new PCB to new key shell and test buttons.
Step 2. Recharge
Turn on VVDI Max, select
Special Function>>Remote Charge Battery
Put key into the coil, and it starts to recharge battery.
Alright, that’s how to fix a faulty BMW X5 key.