Autel XP400Pro BMW EWS3 “Programmer Not Connected” Solution

Problem:

I need to program EWS3 key with Autel IM508 and XP400 Pro. There is no way to do ews3. I have done everything but it tells me the same thing: programmer not connected (communication error). Any solution?

Solution:

Please do following. (need xp400pro)
1. Enter the BMW EWS3 path of the programmer to try to read and write;
2. Check whether the adapter board pins correspond to the EWS3 slots accurately;
3. Operate in strict accordance with the operating instructions.
4.
Step 1: Connect the matching board and EWS3 module first.
Step 2: Connect the board and XP400 PRO.
Step 3: USB connect XP400 PRO and tablet.
Step 4: Connect the 12V power supply to the XP400 PRO; note that the power of the IM508 must be more than 30%.
Step 5: Open the menu and execute the read function.
Step 6: If the 12V is not connected, and the function is executed directly, the USB port will hang up and cannot be used. In this case.
Step 7. If still do not work with above step. try to connect the xp400pro to PC programmer and do the functions.