even downgrading unlock doesn't work
UNLOCK INSTRUCTIONS:
Unlocking SPR via Diag:
Note! This unlock method is not permanent. It will work before next wiping or reflashing of phone.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone'-'Software information'
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 and press 'Read SPC/MSL' button.
5. Run dialer on phone, type ##3424#, enter SPC code and select 'DM+MODEM+ADB'.
6. Press 'Unlock...' button, select 'Unlock SPR DIAG'.
Unlocking SPR using sever:
1. Insert not SPR card to the phone and power it on.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone'-'Software information'
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, select 'Unlock SPR via Server',
write your login and password in window if it will appear.
(Login and password will be saved as default after first input and can be changed in settings.)
To reset Google account activation or Samsung reactivation lock:
1. ADB must be activated in any way (you can flash sBoot from combination firmware,
make sure, that you are not upgrade sBoot).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Select device in ADB settings.
4. 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-J727P
Software version: 36.8
Checking Login and Password... OK
Ballance: 14 crd.
You have 14 credit(s) left. This operation takes 8 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-J727P
Android version: 7.0
PDA version: J727PVPU4ARG2
CSC version: J727PSPT4ARG2
Phone version: J727PVPU4ARG2
Product code: SM-G950UZBABST
CSC country code: USA
CSC sales code: BST
Phone SN: 00000000000
IMEI: xxxxxxxxxxxxxxx:(
HW version: JoelHeredi
RF cal date: 2017.03.16
Chip name: MSM8953
Modem board: MSM8953
Security patch: 2018-07-01
Boot Warranty bit: 0
SIM State: CARD_IO_ERROR
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Searching Samsung diag port... detected COM11
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Checking data... error (4.0)
Your phone has new security patch
Done with Samsung Tool PRO v.36.8
UNLOCK INSTRUCTIONS:
Unlocking SPR via Diag:
Note! This unlock method is not permanent. It will work before next wiping or reflashing of phone.
1. Power on the phone.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone'-'Software information'
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 and press 'Read SPC/MSL' button.
5. Run dialer on phone, type ##3424#, enter SPC code and select 'DM+MODEM+ADB'.
6. Press 'Unlock...' button, select 'Unlock SPR DIAG'.
Unlocking SPR using sever:
1. Insert not SPR card to the phone and power it on.
2. Tap 7 times on 'Build number' in 'Settings'-'About phone'-'Software information'
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, select 'Unlock SPR via Server',
write your login and password in window if it will appear.
(Login and password will be saved as default after first input and can be changed in settings.)
To reset Google account activation or Samsung reactivation lock:
1. ADB must be activated in any way (you can flash sBoot from combination firmware,
make sure, that you are not upgrade sBoot).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Select device in ADB settings.
4. 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-J727P
Software version: 36.8
Checking Login and Password... OK
Ballance: 14 crd.
You have 14 credit(s) left. This operation takes 8 credits.Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-J727P
Android version: 7.0
PDA version: J727PVPU4ARG2
CSC version: J727PSPT4ARG2
Phone version: J727PVPU4ARG2
Product code: SM-G950UZBABST
CSC country code: USA
CSC sales code: BST
Phone SN: 00000000000
IMEI: xxxxxxxxxxxxxxx:(
HW version: JoelHeredi
RF cal date: 2017.03.16
Chip name: MSM8953
Modem board: MSM8953
Security patch: 2018-07-01
Boot Warranty bit: 0
SIM State: CARD_IO_ERROR
Rebooting phone... OK
Waiting ADB device... OK
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Searching Samsung diag port... detected COM11
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Checking data... error (4.0)
Your phone has new security patch
Done with Samsung Tool PRO v.36.8