If your phone is locked or hanged and you want to reset your SAMSUNG mobile phone follow the below steps before reset your phone please backup your personal data on other devices (like computer, memory card or other phones) and contact and also remove SIM card and memory card....
Follow these easy steps to factory reset your phone
Step 1, Switch off your phone, if its hanged then remove Bettory and reinsert it.
Step 2, Press and hold VOLUME-UP+VOLUME-DOWN+POWER buttons upto(10-15 seconds).
Step 3, Release only POWER Button when you see SAMSUNG logo but keep pressing VOLUME-UP AND VOLUME-DOWN both for mobile BIOS option
Step 4, Use VOLUME-DOWN key for navigate option and select wipe data / factory reset.
Step 5, Press HOME Button to select hard reset and Select Yes – delete all user data, and then select OK then Select “reboot system now” and press OK.
Step 6, Configure your android device with your Gmail account and use.
SMART PHONE RESET WITH CODE
| Task | CODE |
| About Phone Information | *#*#4636#*#* |
| For Hard Reset | *2767*3855# |
| For Factory Reset | *#*#7780#*#* |
| Change Power Option/End Call | *#*#7594#*#* |
| Goto in Service Mode | *#*#197328640#*#* |
| File Copy Screen/Backup Media Files | *#*#273283*255*663282*#*#* |
| For WLAN Test | *#*#526#*#* |
| To See WiFi MAC address | *#*#232338#*#* |
| For GPS Test | *#*#1472365#*#* |
| For Bluetooth test | *#*#232331#*#* |
| GTalk Service Monitor | *#*#8255#*#* |
| Shows Bluetooth device address | *#*#232337#*# |
| Another GPS test | *#*#1575#*#* |
SMART PHONE TEST MODE CODE
| Packet Loopback Test | *#*#0283#*#* |
| For LCD Test | *#*#0*#*#* |
| For Melody Test | *#*#0673#*#* |
| Vibration and BackLight Test | *#*#0842#*#* |
| To See Touch Screen Version | *#*#2663#*#* |
| Touch Screen Test | *#*#2664#*#* |
| Proximity Sensor Test | *#*#0588#*#* |
| For RAM Version | *#*#3264#*#* |