BMW CAS 4 READING AND WRITING SERVICE
Car Access System (CAS) is responsible for remote control, alarm functions and enables to start the engine of BMW cars. CAS4 is the latest electronic control unit and has inside a micro controller of Motorola family, XEP series masked as 5H48M or 1N35H. Those micro controllers have a very high security level and if it detects unauthorized access then the program inside MCU sets a "bomb" which destroys original data and CAS becomes inoperative.
In our lab we can read and write MCU with 100% success, no need to lift pins, cut tracks or desolder the MCU. We can read and modify data according to your needs.
Please note that we have no responsibility for work we undertake on ECUs that have existing faults or that have previously been worked on by a third party.