UNLOCK INSTRUCTIONS:
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. Enable 'USB debugging' in 'Settings'-'Developer options' for Android 4.0 - 4.1.2 or
tap 7 times on 'Build number' in 'Settings'-'About phone' to enable 'Developer options' in Android 4.2+.
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.
To read security codes via diagnostic port:
1. Power on the phone.
2. Type *#0808# and select 'DM+MODEM+ADB'.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Press 'Read Codes DIAG' button to read security codes.
To reset Google account activation or Samsung reactivation lock:
1. Power on the phone in download mode (turn off phone, press vol.down + home + power).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Press 'Reset FRP/React/EE' to deactivate Google/Samsung/EE account activation lock.
4. After phone reboot, go to settings and perform factory reset.
Operation: Unlock
Selected model: SM-G550T2
Software version: 31.5.1
Waiting ADB device... OK
Reading phone info...
Model: SM-G550T2
Android version: 6.0.1
PDA version: G550T2UVU2AQC4
CSC version: G550T2TMB2AQC4
Phone version: G550T2UVU2AQC4
Product code: SM2G550TZKWTMB
CSC country code: USA
CSC sales code: TMB
Phone SN: RV8J11QA5HM
IMEI: 351722081450482
HW version: REV0.4
RF cal date: 20170121
Chip name: EXYNOS3475
Modem board: SHANNON308
Security patch: 2017-03-01
Boot Warranty bit: 1
Checking Super user right... true
Reading NV data... OK
Checking NV data... OK
Reading data... OK
Detecting MODEM... OK
Reading MODEM... OK
Calculating... OK
Initialization data... OK
Writing zTool... OK
Initialization zTool... OK
Running zTool, please wait...
Start... OK
Initialization... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... OK
HWID: AB 96 39 49 BD E5 33 23 08 2C 56 1D CB 2D F5 BA
Calculating... OK
Unlocking... OK
Writing NV data... OK
Rebooting phone... OK
Unlock done
Done with Samsung Tool PRO v.31.5.1