FLASH INSTRUCTIONS:
1. Choose correct flash file(s).
2. Choose flash option if needed:
-'Re-write NV' - Warning! This option will erase all calibration data!
-'Single file firmware' - if you have *.pac firmware
3. Press 'Flash' button.
4. Connect the phone in flash mode (Press 'OK' button (Centre of navigation buttons module) and connect USB cable).
Operation: Flash
Selected model: SM-B310E
Software version: 28.8.1
Waiting phone... detected COM15
Sending FDL... OK
Reconnecting phone... OK
Reading NV... OK
Saved to C:\Program Files\Z3X\Samsung\SamsungToolPRO\backup\NV\nvitem_SM-B310E_26-7-2017_20-48-25.bin
Sending SSBOOT... OK
Sending PS... OK
Sending CSC... OK
Erasing FLASH... OK
Flashing done (time - 00:01:46)
Done with Samsung Tool PRO v.28.8.1