Secret Codes 

Show Software date Following procedure will show on your phone the software date. Remove your SIM Card, then press: 

* # 06 # 

and finally press: 

[left softkey] 

To enter Monitor Mode on Network Option menu 
1. Menu 9 (Phone Options) 
2. 7 (Phone Status) 
3. [Left Display Button] (left MENU key) 
4. 7684666 
5. [HangUp Button] (Red HandSet key) 

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. 
