The phone may be stuck in a "Factory Mode" overlay on the home screen. 3. Management & Restoration Tools
: Sometimes, issues with Wi-Fi or Bluetooth connectivity can be resolved by restoring the EFS partition from a backup, as it includes MAC addresses and other calibration data. j710f efs file
The J710F EFS file itself is composed of several files and directories, including: The phone may be stuck in a "Factory
If your phone is stuck in Recovery Mode with an E:failed to mount /efs error, the partition may need to be reformatted: The J710F EFS file itself is composed of
If this file is corrupted or deleted, your device will lose its ability to connect to cellular networks, even if the SIM card is perfectly fine. Why Do You Need a J710F EFS Backup?
Some custom ROMs for J710F use outdated vendor blobs that override EFS permissions. Always backup before switching ROMs.