error unlock samsung n975f

Question

  UNLOCK INSTRUCTIONS:
    Notice about MAR2021 algo!
    Please be careful, this method will try to read both codes MCK and NCK. But in some cases
    these codes can be read separately only! This is specifically related only to device security.
    In this case both codes calculations will take  separated credits for processing! 
  
    To read security codes using sever:
    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, select 'Unlock via server ...' algo,
     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.) 

Operation: Read Codes via Server [UPLOAD Mar 2021]
Selected model: SM-N975F
Software version: 42.10

8 credits removed the phone was not unlocked

Answer 1

Hello. Do you try to repeat process? Also try reset phone's settings first and then repeat unlock. Post result.

Comments

UNLOCK INSTRUCTIONS:
    Notice about MAR2021 algo!
    Please be careful, this method will try to read both codes MCK and NCK. But in some cases
    these codes can be read separately only! This is specifically related only to device security.
    In this case both codes calculations will take  separated credits for processing!
  
    To read security codes using sever:
    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, select 'Unlock via server ...' algo,
     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.)

Operation: Read Codes via Server [UPLOAD Mar 2021]
Selected model: SM-N975F
Software version: 42.10

Checking Login and Password... OK
Ballance: 22 crd.
You have 22 credit(s) left. This operation takes 8 credits.Continue?  Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-N975F
Android version: 10
PDA version: N975FXXU6DTH7
CSC version: N975FOXM6DTH7
Phone version: N975FXXU6DTH5
Product code: SM-N975FZKDROM
CSC country code: Romania
CSC sales code: ROM
Carrier ID: ROM
Phone SN: RF8N92L2LZF
IMEI: 351591119250135
HW version: REV0.6
RF cal date: 20200922
Chip name: EXYNOS9825
Modem board: SHANNON5000
Security patch: 2020-09-01
Boot Warranty bit: 0
SIM State: ABSENT,ABSENT
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Searching Samsung modem... detected COM13
Initialization zTool... OK
Running zTool, please wait... OK
Executing... OK
Searching Ramdump interface... COM16 detected
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Reading ramdump data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... error (1)
Server error: Could not process security data, please try again

Done with Samsung Tool PRO v.42.10

not unlock

hard reset phone done

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Please try with JAN21 method and post result.

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  UNLOCK INSTRUCTIONS:
    Notice about MAR2021 algo!
    Please be careful, this method will try to read both codes MCK and NCK. But in some cases
    these codes can be read separately only! This is specifically related only to device security.
    In this case both codes calculations will take  separated credits for processing! 
  
    To read security codes using sever:
    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, select 'Unlock via server ...' algo,
     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.) 

Operation: Read Codes via Server [DIAG Jan 2021]
Selected model: SM-N975F
Software version: 42.10

Checking Login and Password...  could not connect to server
Checking Login and Password... OK
Ballance: 22 crd.
You have 22 credit(s) left. This operation takes 8 credits.Continue?  Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-N975F
Android version: 10
PDA version: N975FXXU6DTH7
CSC version: N975FOXM6DTH7
Phone version: N975FXXU6DTH5
Product code: SM-N975FZKDROM
CSC country code: Romania
CSC sales code: ROM
Carrier ID: ROM
Phone SN: RF8N92L2LZF
IMEI: 351591119250135
HW version: REV0.6
RF cal date: 20200922
Chip name: EXYNOS9825
Modem board: SHANNON5000
Security patch: 2020-09-01
Boot Warranty bit: 0
SIM State: ABSENT,ABSENT
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching Samsung diag port... detected COM27
Checking diag port... OK
Searching Samsung modem... detected COM26
Searching server... OK
Checking server answer... OK
Reading data from phone... OK
Backuping diag data... OK
Executing... OK
Restoring diag data... OK
Reading data from phone... OK
Calculating... OK
Searching server... OK
Waiting for server answer... OK
Freeze code: 53097162
NET lock: 81685153
SUB lock: 00000000
SP lock: 00000000
CP lock: 00000000
SIM lock: 00000000
For check lock status: *#7465625#

Done with Samsung Tool PRO v.42.10

everything worked out only 2 times removed 8 credits

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Please check credits history, credits consumed only once.

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the first time was written off 8 but it was not unblocked, I then began to write to you

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As you see, credits consumed only once.