Instead of rushing to a shop for repair or purchasing another handset, one can try one of the following procedures to hard reset Samsung J700H/DS.
The battery should be fully charged or more than 70%. It is important to backup vital information such as contacts messages, images, emails, and settings. Remove the SD card and SIM card.
It is important to backup your data on a hard drive, and raid system media because after hard reset data is wiped clean.
Samsung j700 hard reset by using External Keys
- In Recovery Mode select factory reset (Power +Vol Up)
- Press the Power key as a confirmation and Vol Up Vol Down to select
- Select Yes to erase all data and then confirm by pressing the power key
- Select Reboot system to finish hard reset
Reset Via Master key
- Press the power button to turn the device on
- Enter this code in the dialer: *2767*3855#
- Tap the Call key to confirm the whole Factory reset procedure, the device should reboot
If these don’t work, then take the device to a repair service for further assistance.