Your Android device holds a large amount of information about its hardware and system that an average user might find difficult to access.
But if you know Android’s secret codes , you can factory-reset your device, find out its hidden camera information, instantly back up your precious data, and much more.
Here are very useful secret HTC mobile codes to checkout that your hardware properly working or not.
Code Description
*#*#3424#*#* HTC function test Program.
*#*#4636#*#* HTC Info menu
*#*#8255#*#* launching GTalk Service Monitor
##3424# Diagnostic mode.
##3282# for EPST.
##8626337# for VOCODER
##33284# Field trial menu.
##786# Reverse Logistics Support.
##7738# Protocol Revision.
##775# Unknown
##2539# Unknown
Melody test : *#*#0673#*#* OR: *#*#0289#*#*
Getting Phone information : *#*#7780#*#*
Getting Battery information : *#*#7780#*#*
Getting Battery history : *#*#7780#*#*
Bluetooth test : *#*#232331#*#*
Showing Bluetooth device address : *#*#232337#*#
test your LCD press this code : *#*#0*#*#*
show your RAM version press this code : *#*#3264#*#*
touch screen version : *#*#2663#*#*
touch screen test : *#*#2664#*#*
proximity sensor test : *#*#0588#*#*
Showing WiFi MAC address : *#*#232338#*#*
secret code you can test your GPS : *#*#1472365#*#*
another GPS test : *#*#1575#*#*
PDA, Phone, H/W, RFCallDate : *#*#4986*2650468#*#*
PDA and Phone : *#*#1234#*#*
FTA SW Version : *#*#1111#*#*
FTA HW Version : *#*#2222#*#*
PDA, Phone, CSC, Build Time, Changelist number : *#*#44336#*#*
Packet Loopback : *#*#0283#*#*
test device press(Vibration test and BackLight test also) : *#*#0842#*#
N:B: ***Use this below codes if any problem use following code undo the effects of a code: *#*#4636#*#*
