Philips Spark :

Philips Spark : IMEI code *#06# Service Provider Lock The Service provider (SP) lock is used to lock the cell phone to the SP's SIM card. Once the cell phone is locked to a specific operator, if one inserts a SIM card from a different operator the phone will refuse to accept it! The cell phone will however accept another SIM card from the same operator. Pin Outs 1. GROUND 2. GROUND 3. HANDS FREE ON/OFF 4. MUTE 5. TX 6. RX 7. RTS 8. REPROGRAMMING 9. ON HOOK CHARGER (APPROX 13V? TO 14V) 10. AUX MIC 11. AUX SPEAKER 12. GROUND