About Battery = *#*#4636#*#*
Restore Factory Setting = *2767*3855# (wipe your data, custom settings, and apps).
Refresh your device (keeps your data) *2767*2878#
Test Mode For Service Activity =
GPS Test =
LCD Display Test = *#*#0#*#*
Touch Screen Test = *#*#2664#*#*
Proximity Sensor Test = *#*#0588#*#*
RAM Version = *#*#3264#*#*
Vibration and Backlight test = *#*#0842#*#*
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