G950F. cannot unlock - no ADB available [Answered]

[tical]

I have a G950 F . there is no ADB to select.

Hw do I unlock

Operation: Info
Selected model: SM-G950F
Software version: 42.11

Searching Samsung modem... detected COM16
Reading phone info...
Model: SM-G950F
AP version: G950FXXSBDUA3
CSC version: G950FUWEBDTJ1
CP version: G950FXXSBDTJ1
Product code: JDI
Phone SN: RF8JB2ZEJER
IMEI: 35904208769XXXX
Unique number: CE081718DB05282503
Reading IMEI... OK
IMEI: 35904208769XXXX (SIGN: UNKNOWN)

Done with Samsung Tool PRO v.42.11

Please help

[Z3X]

Hello. Adb enabled in phone? Driver installed correctly?
https://developer.samsung.com/mobile...sb-driver.html

[tical]

I selected OEM unlocking and some other options under developer options and then I see the ADB options when I selected *#0808# was not seeing it before

[tical]

I am getting this error when trying to unlock

You have 50 credit(s) left. This operation takes 5 credits. Continue? Yes
Waiting ADB device... OK
Reading phone info...
Model: SM-G950F
Android version: 9
PDA version: G950FXXSBDUA3
CSC version: G950FUWEBDTJ1
Phone version: G950FXXSBDTJ1
Product code: SM-G950FZBLJDI
CSC country code: JAMAICA
CSC sales code: JDI
Carrier ID: JDI
Phone SN: RF8JB2ZEJER
IMEI: 35904208769XXXX
HW version: MP 0.700
RF cal date: 20171123
Chip name: EXYNOS8895
Modem board: SHANNON355
Security patch: 2021-01-01
Boot Warranty bit: 0
SIM State: ABSENT
Initialization zTool... OK
Running zTool, please wait... OK
Reading data from phone... OK
Searching Samsung diag port... detected COM15
Checking diag port... OK
Searching Samsung modem... detected COM16
Searching server... OK
Checking server answer... modem not supported
Try downgrade modem if possible

Done with Samsung Tool PRO v.42.11

[Z3X]

Flash this firmware then read codes.
https://samfrew.com/ru/download/Gala...G950FVFJ8DTC3/

[tical]

Tried to flash. get failed. see screenshot. Please advise

<ID:0/008> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/008> Odin engine v(ID:3.1401)..
<ID:0/008> File analysis..
<ID:0/008> skip file list for home binary
<ID:0/008> param.bin
<ID:0/008> userdata.img
<ID:0/008> Home Binary Download
<ID:0/008> Total Binary size: 3801 M
<ID:0/008> SetupConnection..
<ID:0/008> Initialzation..
<ID:0/008> Get PIT for mapping..
<ID:0/008> Firmware update start..
<ID:0/008> NAND Write Start!!
<ID:0/008> SingleDownload.
<ID:0/008> sboot.bin
<ID:0/008> up_param.bin
<ID:0/008> FAIL!
<ID:0/008>
<ID:0/008> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/008> Removed!!

[Z3X]

What error you see at phone's screen at this moment?

[tical]

no error .. nothing happens on phone screen except it is in download mode

[Z3X]

https://samfw.com/firmware/SM-G950FD/XSG/G950FXXS8DTC1