What is Xhorse Key Tool Plus BMW FEM "Preprocess"?
When use vvdi key tool plus auto diagnose BMW FEM/BDC car, it shows the result that system status "preprocess " , what is the meaning? What are the steps? Usually when you do key programming, vvdi key tool plus will display the steps, just operate like the key tool plus display is OK. 1. Read key information Get all the key ID and status (whether to enable) in the car immo system. Read the car immo system status, version number and key ID and key status, etc. If there is an abnormal situation for the vehicle, please continue after correction. 2. Programming FEM/BDC system This function will automatically back up FEM/BDC system code, the backup code will fail during the preprocessing process, you need to back up manually (it is OK to back up successfully once during the entire vehicle operation process). Please check if the original key is normal first after preprocess In this step, it will do preprocess...