Cell Battery, WiFi Usage etc Info

*#*#4636#*#*



Restore Factory Settings

*#*#7780#*#*



Format Phone

*2767*3855#







Launch service mode

*#*#197328640#*#*



Test WiFi

*#*#232339#*#* or

*#*#526#*#* or

*#*#528#*#*



Display WiFi MAC address

*#*#232338#*#*



GPS test

*#*#1472365#*#*



Other GPS test

*#*#1575#*#*



Bluetooth test

*#*#232331#*#*



Display Bluetooth physic address

*#*#232