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
*#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
*#4960# send —-> info
*#3210# send —-> sp lock
*#2820# send —-> version
*73738# send —-> hardware reset
Secret Code
China Mobile Secret Codes
Nokia
On the main screen type
*#06# for checking the IMEI (International Mobile Equipment Identity).
*#7780# reset to factory settings.
*#67705646# This will clear the LCD display(operator logo).
*#0000# To view software version.
*#2820# Bluetooth device address.
*#746025625# Sim clock allowed status.
*#62209526# – Display the MAC address of the WLAN adapter. This is available only in the newer devices that supports WLAN like N80
#pw+1234567890+1# Shows if sim have restrictions.
*#92702689# – takes you to a secret menu where you may find some of the information below:
1. Displays Serial Number.
2. Displays the Month and Year of Manufacture
3. Displays (if there) the date where the phone was purchased (MMYY)
4. Displays the date of the last repair – if found (0000)
5. Shows life timer of phone (time passes since last start)
*#3370# – Enhanced Full Rate Codec (EFR) activation. Increase signal strength, better signal reception. It also help if u want to use GPRS and the service is not responding or too slow. Phone battery will drain faster though.
*#3370* – (EFR) deactivation. Phone will automatically restart. Increase battery life by 30% because phone receives less signal from network.
*#4720# – Half Rate Codec activation.
*#4720* – Half Rate Codec deactivation. The phone will automatically restart
If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538#
Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345
Press *#3925538# to delete the contents and code of wallet.
*#7328748263373738# resets security code.
Default security code is 12345
Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys) for 3 seconds, should say pin code. Press C,then press * message should flash, press * again and 04*pin*pin*pin#
Change closed caller group (settings >security settings>user groups) to 00000 and ure phone will sound the message tone when you are near a radar speed trap. Setting it to 500 will cause your phone 2 set off security alarms at shop exits, gr8 for practical jokes! (works with some of the Nokia phones.)
Press and hold “0″ on the main screen to open wap browser.
Common GSM Secret Codes
Type *#61# and press call – Check redirection status.
Cancel all redirections: ##002#
*43# to activate call waiting, to deactivate #43#.
If your phone doesn’t have incoming call barring and outgoing call barring, you can try this.
For outgoing call barring dial *33*barcode*# and pres OK. To deactivate
it dial #33#barcode*#.
On any phone on any network type in **43# to enable conference calls. You can make up to 7 calls at once
If you need to block SMS reception (if you are spammed by someone) just press this code:
*35*xxxx*16#
xxxx is your Call Barring code (default is 0000).
To remove this barring type:
#35*xxxx#
If you want to hide/show your phone number when calling, put one of these codes below in front of the number that you are going to call.
(*#30# / *#31# or *31# / #31# ) Works on some networks.
Typing *0# or *nm# on the beginning of a txt message gives you
detailed delivery report on some networks.. But turn off reports in message settings before.
When the sim card-pin blocked type **042*pin2 old*newpin2*newpin2*