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.!
How to Hard Reset the Samsung SGH-i607 BlackJack
Resetting your Samsung Blackjack Phone
When the phone is powered off press the Up Navigation key + END key and the Power key at the same time.
When i607 asks press 1 key to reset and reboot then Y for YES, or any other key to cancel format
Storage and setting are wiped clean, eject the microSD memory card before doing a hard reset.
press *2767*3855# (+ center navi key)
You can reset your phone’s settings and clear all added data from memory.
Resetting the Phone
1. On the Home screen, press the Start soft key 2. Select Settings > More... > Security > More... > Reset. 3. Enter the reset password and press the Done soft key. The default password is 0000. 4. Press the Yes soft key to confirm. The phone resets and reboots itself.