If a BMW 3 series, i.e F35 fails to open trunk, in most cases this is caused by data loss in the CPU MPC5515 of the REM (Rear Electronic Module).
You can read the CPU data, modify and write the modified data to repair the REM module.
Both Xhorse VVDI Prog and Multi Prog will read and write the module.
BMW REM module wiring diagram to Xhorse VVDI Prog/Multi Prog

REM=REAR ELECTRONIC CONTROL MODULE
MPC5515
CPU ID=1D6011181D10D107
Need to add a 100-120 ohm resistor between VCC and JCOM!!!
Multi prog works as well.
Problem:
Tried to write key 2002 model Mini Cooper EWS3 system with Xhorse vvdi key tool plus using vvdi super chip xt27a. I converted it to 7935 but it failed several times. The car doesn’t work in any way.
Solution:
Sometimes super chip fails on EWS3. XT27A is not ideal for BMW and Mini (some report signal being weak or losing programming).
Better use original 7935 chip or XT15 7935 chip. XT15 works fine.
But some others find a way to use the super chip for BMW PCF7935.
1). You should set chip on VW ID33 (some also set on ID44). It working always for BMW.
2) or Super Chip converts to 7935, then converts to VW33. Don’t have a problem it didn’t come back.
User feedback:
Add a spare key to Audi TT 2016 with Xhorse VVDI MLB Tool + VVDI2.
Virtual cockpit.
Its not MLB key its mqb48. It looks like an MLB key but its not.
Obtain key data with MLB Tool + MQB48 adapter from working key.
Then learn key with VVDI2.
Tool used:
A new MLB key
Make a transponder key from immo box Mitsubishi – L200 using Xhorse VVDI Prog + VVDI Key Tool Plus.
Model: Mitsubishi L200
Year: 2006-2009
Chip type: 24C02
Transponder: PCF7936
Read 24c02 chip data with vvdi prog.
Read pin code and program key with vvdi key tool plus.
Photo attached:
If your Xhorse Bluetooth Digital Smart Key (XSBTK0EN) is not responding smoothly, the issue may stem from an improper sensing distance. This guide provides two effective methods to adjust the sensing position for optimal performance.
Method 1. Manual Adjustment of the Sensing Position
Method 2. Intelligent Adjustment of the Sensing Position
Why Choose Xhorse Digital Smart Key?
By following these steps, you can ensure smooth and responsive operation of your Xhorse Digital Smart Key. If issues persist, consult the manufacturer’s support for further assistance.
For more details, visit www.vvdishop.com