China Mobile Secret Codes :

Default user code : 1122, 3344, 1234, 5678
Engineer mode : *#110*01#
Factory mode : *#987#
Enable COM port : *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
Restore factory settings : *#987*99#
LCD contrast : *#369#
Software version : *#800#
Software version : *#900#
Set default language : *#0000# Send
Set English language : *#0044# Send
Set English language (new firmware) : *#001# Send
Default user code : 1122, 3344, 1234, 5678

secert codes which i work on are
1) *#06#--emi 
2) *#87*#--for version code and all
3)*#66#---for test

*#4960# send ----> info
*#3210# send ----> sp lock
*#2820# send ----> version
*73738# send ----> hardware reset
Other codes :

*#2220# send ----> reset to default
*#2634# send ----> unlock gprs settings
*#1110# send ----> special net unlock
*#8140# send ----> net lock
#4960*code# send ----> unlock
#4960*code*code # send ----> unlock

Mobile Codes for China Mobiles : S.e.c.r.e.t

The china mobile codes are very difficult to get.

I am posting the secret codes for the china mobiles which work on almost all the Chinese mobiles...

Here are the codes for china mobiles try it
1)Default user code : 1122, 3344, 1234, 5678
2)Engineer mode : *#110*01#
3)Factory mode : *#987#
4)Enable COM port : *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
5)Restore factory settings : *#987*99#
6)LCD contrast : *#369#
7)Software version : *#800#
8)Software version : *#900#
9)Set default language : *#0000# Send
10)Set English language : *#0044# Send
11)Set English language (new firmware) : *#001# Send
12)Default user code : 1122, 3344, 1234, 5678

Secret codes for Chinese Mobiles:

After a lots of request of users, now I publish the secret codes for most type of china brands mobile phone. Nokia N-Series: N95, N93, N73, N93I, N83, N8800, and more available in Chinese models. They have features like touchscreen, two camera, 2 SIM slot, two battery, two charger, and some of other features. Most Chinese phones have same software and features, but have different in looks. These phone have a range of under 2k-8k (INR). Sony Ericsson phones also avaliable in Chinese models and soon will here.

China Mobile Secret Codes and Pinout:

default user code: 1122, 3344, 1234, 5678
Engineer mode: *#110*01#
Factory mode: *#987#
Enable COM port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
Restore factory settings: *#987*99#
LCD contrast: *#369#
software version: *#800#
software version: *#900#
set default language: *#0000# Send
set English language: *#0044# Send
set English language (new firmware): *#001# Send

*#0086#, *#0886# set to China
*#0084#, *#0966# set to Vietnamese
*#77218114#
*#19992006#
*#881188#
#*94267357#
*#0084#call

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N95Pda and N95S Pinout
2×5
4:Rx
5:TX
6:GND
---------------------
K1 Moto Pinout
4:Rx
5:Tx
6:Gnd
---------------------
PDA ZT6618
1..8 pin mini Conector
3:Rx
4:TX
5:Gnd
--------------------
Cect 8380
1..8 pin mini Conector
1:Gnd
2:Rx
3:Tx
---------------------
KG-200
4:Gnd
3:Tx
2:Rx
----------------------
N91I
1...12 pin Connector
.
5:Gnd . 12:Tx
6:Tx . 13:Rx
7:Rx