How to solve Foxflash BMW 525D EDC15C4 Car Not Start

Car model: BMW 525D

ECU type: EDC15C4

Symptoms: After running out of battery, the car does not start.

Error code: 02 EWS key code variable incorrect

Attempt: tried to do synchronization to reactivate it, but unfortunately all attempts failed

Final result:  had to cancel the protection code immo off by reading the flash with foxflash on bench. And making immo off using the giant software autosoft online.

Thus, the car started successfully.