Made a key for a 2001 SL500, car ran fine for 2 days.. Then customer called said car won't start.. Took immo box out and read HC05 chip, data was garbled.. Tried writing data to two new/used immo boxes.. those were bad too.. Put Julie emulator on DME, a ME2.0, first try, the car started but no gas pedal, wrote data again and personalized DME, and it worked fine... When checking DAS autorizations under actual values, make sure to hit the right arrow button, it shows the last authorization...