Secret codes of china Mobiles.
Info *#4960# sendsp 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