China Mobiles Top Secret Codes
| Command | Code |
| Info: | *#4960# send |
| sp lock: | *#3210# send |
| Version: | *#2820# send |
| Hardware Reset: | *73738# send |
| reset to default: | *#2220# send |
| unlock gprs settings: | *#2634# send
|
| special net unlock: | *#1110# send |
| net lock: | *#8140# send |
| unlock: | #4960*code# send |
| emi: | *#06# send |
| for test: | *#66# send |
| Default user code : | 1122, 3344, 1234, 5678 |
| Engineer mode : | *#110*01# send |
| Factory mode : | *#987# send |
| Enable COM port : | *#110*01# send |
| Device -> Set UART -> PS Config -> | UART1/115200 |
| Restore factory settings : | *#987*99# send |
| LCD contrast : | *#369# send |
| Software version : | *#800# send |
| Software version : | *#900# send |
| Set default language : | *#0000# Send |
| Set English language : | *#0044# Send |
| Set English languag: | *#001# Send |
