Secret codes for LG feature phone

Please note these codes are exclusively for LG feature phones. In the past we did not have so many Smartphone as  iPhone and Android phone. LG did a terrific job in producing and selling those feature phones although they are not so successful at Smartphone.

LG mobile devices, to some extent are a little different from other others. For instance, they do not have the same secret codes for all mobile phones, but below codes work on most LG handsets, you may wanna give it a shot.

2945#*#, (, excluded, same below)test mode, enter this code and your phone goes into test mode.
2945*#01*#, shows screen mode
*#06#, shows your IMEI number as usual
*#07#, shows IMEI and SW (only for LG 510)
*8375#, shows OS version (only available to LG B1200)
*6861#, shows recount cheksum (only for LG B1200)
#PWR 668, restores factory settings (only for B1200)

Below codes shows sim lock menu
1945#*5101#, for LG B1200
2945#*5101#, for LG 510W, 5200
2945#*70001#, for LG 7020, 7010
2947#*, for LG 500, 600

Below are codes for test menu for various devices:
637664#*#, for 8330
49857465454#, for 8180 V10a
492662464663#, for 8180 V11a
47328545454#, for 8130-8138
277634#*#, for 8110-8120

Here are some codes exclusively for LG-U81XX series handsets

Code to read phone version :
- Boot your phone without SIM inserted
- Enter 277634#*# or 47328545454#
- Select ‘SW Ver.info’

Code to reset phone :
- Boot your phone without SIM inserted
- Enter 277634#*# or 47328545454#
- Select ‘Factory Reset’

Code to enter unlock menu :
- Boot your phone without SIM inserted
- Enter 2945#*88110#