A) Use valid car key to start and switch off the engine. Leave the key in ignition switch. Turn on the emergency light to prevent other modules into sleep mode.
B) Click on "Step 1: Read CAS data" to read CAS data. Pop out the key when prompten by APP. The name of CAS data is "CAS3_ORGKEY20xxxxxxxxxxxx. bin".
Programming in ignition switch (all keys lost)
A) We recommend using ICP method to back up the original FLASH and EEPROM data of the CAS.
B) It is strongly recommended to use PCF7936 chip or reprogrammable BMW keys (such as YH universal key) for key programming in ignition switch first. Otherwise. it will be void once the key locked!
After the new programmed car key start the car successfully. use the key to program the original BMW blank key by "add new key (have a car key in use)".
C) Put a blank key into the ignition switch. Turn on the emergency light.
D) Click on "Step 1: Read CAS data" to read CAS data. The name of CAS data is
"CAS3_CHGKEY20xxxxxxxxxxxx. bin".
CAS programming
A) If the current CAS version is ISTA-P45 or later. we recommend using ICP method to add new key.
B) There is a risk for CAS programming. ensure the power of vehicle battery is enough to work at least 20 minutes.
Or connect a battery charger to the car; the charging voltage must not be less than 13v to prevent the low voltage result in data lost.
C) Ensure the car no serious fault before CAS programming.
D) It＇s recommended to back up FLASH and EEPROM of CAS using ICP method.
