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UNLOCK INSTRUCTIONS:
    Unlocking with original MSL code:
    Warning! Knox warranty must be active (0x00)!
    If you have it voided (0x01(void)), then you can't unlock this phone with MSL.
  1. Phone must be powered on.
  2. Type *#0808# and select 'DM+ACM+ADB'.
  3. Run dialer and type *#0*# (service mode will appear).
  4. Connect the phone to USB cable, choose correct COM port in port settings.
  5. Press 'Unlock' button.
  6. Paste MSL code in new opened window and press 'OK'.
 
    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 'Read Codes via server' button, select 'Read codes ...' 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 2021]
Selected model: SM-G950F
Software version: 43.18

Checking Login and Password... OK
Balance: 12 crd.
You have 12 credit(s) left. This operation takes 5 credits. Attention! In case if phone asking MCK code, using this method will consume credits twice - first for MCK code and then for NCK. Continue?  Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G950F
Android version: 9
PDA version: G950FXXSCDUD2
CSC version: G950FUWECDUD1
Phone version: G950FXXSCDUD2
Product code: SM2G950FZKACNX
CSC country code: Mexico
CSC sales code: IUS
Carrier ID: CNX
Phone SN: RF8JB3DFG6W
IMEI: 359042089192990
HW version: MP 0.700
RF cal date: 20171125
Chip name: EXYNOS8895
Modem board: SHANNON355
Security patch: 2021-04-01
Boot Warranty bit: 0
SIM State: ABSENT
Rebooting phone... OK
Waiting ADB device... OK
Waiting for device to become ready... OK
Initialization zTool Loader... OK
Running zTool, please wait... OK
Loading... error (0.)

Done with Samsung Tool PRO v.43.18
related to an answer for: Unlock G950F
in Samsung Tool by (420 points)

2 Answers

0 votes
Hard reset phone and repeat operation. If still same - try another pc.
by (88.9k points)
0 votes
And try please:  G950FXXUCDUD1 - flash this PDA and repeat. Post result.
by (88.9k points)
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