How-to: program BMW X5 E53 old version EWS3 spare key using Xhorse VVDI Key Tool Max Pro.
Step 1: Read EWS3 dump wtih vvdi prog
Remove and open EWS3 module
Connect EWS3 with vvdi prog via EWS3 solder free adapter.
If get chip crack failure error, check connection and try again.
Read EWS data and save.
Upload EWS3 dump to i.xhorse.com cloud database.
Step 2. Write Key via Dump
Go to Key Tool Max Pro Immo Data Tool->File Management->My Data
Download EWS3 dump from i.xhorse.com server
Now we have this file on the key tool max pro device.
Go to Immo Data Tool->Europe->BMW->EWS3->Start execution
Clone start need select original key position. Select original key position, select chip type as PCF7935, put blank pcf7935 chip into induction coil, then press Make dealer key.
Prepare dealer key success.
Then cut the blade and try to start engine with the new key.