Tab S2 T815 unlock sucessfully

Phone must be rooted!
If the software can’t root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on ‘Build number’ in ‘Settings’-‘About phone’ to enable ‘Developer options’,
go to ‘Settings’-‘Developer options’ and enable ‘USB debugging’.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press ‘Unlock’ button for direct unlock or ‘Read codes’ to read security codes.

To reset Google account activation or Samsung reactivation lock:
1. Power on phone in download mode (turn off phone, press vol.down + home + power).
2. Connect phone to PC with USB cable, install drivers if needed.
3. Press ‘Reset FRP/React/EE’ to deactivate Google/Samsung/EE account activation lock.
(Sometimes needs to perform ‘wipe data/factory reset’ once more, to complete this locks removal.)

Operation: Unlock
Selected model: SM-T815
Software version: 23.9

Waiting ADB device…
Please, allow USB debugging on phone… OK
Reading phone info…
Model: SM-T815
Android version: 5.0.2
Product code: SM-T815NZKEO2U
Phone version: T815XXU1AOG9
PDA version: T815XXU1AOG9
CSC version: T815O2U1AOG1
CSC country code: UK & IRE
CSC sales code: O2U
HW version: MP 0.500
Phone S/N: RF2G900ASBR
Modem board: SHANNON333
RF cal date: 20150901
Checking Super user right… true
Initializating zTool… OK
Running zTool, please wait… OK
Reading nv data… OK
Checking NV data… OK
Calculating… OK
Writing nv data… OK
Rebooting phone… OK
Unlock done

Done with Samsung Tool PRO v.23.9
root it here…etrieve_file=1