Hard reset of GT-15503 Samsung

Samsung Android Phone Secret Code

This is secret code on Samsung Android phone. 

With this secret code you can access hidden phone information.

*#*#4636#*#* Phone Information

*2767*3855# Hard Reset

* *#*#7780#*#* Factory Reset

** *#*#7594#*#* Change End Call/Power Option

*#*#197328640#*#* Service Mode

*#*#273283*255*663282*#*#*File Copy Screen (Backup Media Files)

*#*#526#*#* WLAN Test

*#*#232338#*#* Shows WiFi MAC address

*#*#1472365#*#* GPS Test 

*#*#1575#*#* Another GPS test 

*#*#232331#*#* Bluetooth test 

#*#232337#*# Shows ...