Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.!
Samsung i617 BlackJack II hard reset
Press and hold the up navigation key and then press the power button, choose 1 then y.
The SGH-I617 2nd method to reset the handset's factory settings, through the phone menus.
To reset the handset's factory settings, via menus, follow the steps below:
WARNING: This Reset will Delete ALL added Data from the Handsets Memory
1. While in standby mode, press the left soft key for Start 2. Select Settings 3. Select More (G) to display more settings 4. Select Security (B) 5. Select More (G) to display more security settings 6. Select Reset (B) then press the left soft key for OK at the Alert prompt 7. With Device highlighted, press the left soft key for Yes to confirm the Device Reset
Use this method to hard reset your Samsung SGH-i617 BlackJack II phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.