ALL LG 2G and 3G GSM mobile phones Service codes for Security lock reset and service tests/software version check. etc...
ALL LG 2G : 2945#*#
8110 & 8120 : 277634#*#
U8130 & U8138 : 47328545454#
8180 old sw : 49857465454#
8180 new sw : 492662464663#
8330 : 637664#*#
8360 : *6*41*12##
8380 : 525252#*#

LG 8550 885508428679#*#

U880 * 5 Power ON