Error in writing cert G920F (New Baseband Security)

[Masoud.ebi]

Hi

software cant repair or write cert to phone log :

Operation: Write CERT
Selected model: SM-G920F
Software version: 26.3.1

Waiting ADB device... OK
Reading phone info...
Model: SM-G920F
Android version: 6.0.1
Product code: 
Phone version: 
PDA version: G920FXXU4DPG8
CSC version: G920FPHN4DPG1
CSC country code: The Netherlands
CSC sales code: PHN
HW version: 
Phone S/N: RF8G90FHJ2T
Modem board: 
RF cal date: 
IMEI: 
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait...
Start... OK
Init... OK
Generate and check client proof... OK
Verify proof by client... OK
Reading data... error (9)

Done with Samsung Tool PRO v.26.3.1

I googled and see this site [INFO][BLOQUAGE DU BOOTLOADER] ROMS S6 G920F ET S6 G925F 4Dxxx : PLUS DE DOWNGRADE POSSIBLE !!! - Samsung Galaxy S6 Edge - Roms officielles - forum de PhonAndroid


and in this new version modem baseband structure added with secondary bootloader an protected
and even after downgrade baseband(Cp) become unknown

Whats a solution supporter ?

[GSMsurgeon]

i have G920FXXS4DPGA 6.0.1

still waiting for solution to write cert...people try to help with untested solution..but not working...

[Masoud.ebi]

ohhhh , In your opinion, when it comes solutions ?? nd how long u wait ??

[GSMsurgeon]

Everybody says dwngrde modem..but cant downgrade with out baseband damage..so need to wait for solution by devolopers..

[Masoud.ebi]

Supporter , may i use dd command and write bootloader and modem partition directly from older fw ??!!!!

[Masoud.ebi]

1|shell@zeroflte:/ $ ls -al dev/block/platform/15570000.ufs/by-name
lrwxrwxrwx root     root              2015-04-13 15:12 BOOT -> /dev/block/sda5
lrwxrwxrwx root     root              2015-04-13 15:12 BOTA0 -> /dev/block/sda1
lrwxrwxrwx root     root              2015-04-13 15:12 BOTA1 -> /dev/block/sda2
lrwxrwxrwx root     root              2015-04-13 15:12 CACHE -> /dev/block/sda16
lrwxrwxrwx root     root              2015-04-13 15:12 DNT -> /dev/block/sda10
lrwxrwxrwx root     root              2015-04-13 15:12 EFS -> /dev/block/sda3
lrwxrwxrwx root     root              2015-04-13 15:12 HIDDEN -> /dev/block/sda17
lrwxrwxrwx root     root              2015-04-13 15:12 OTA -> /dev/block/sda7
lrwxrwxrwx root     root              2015-04-13 15:12 PARAM -> /dev/block/sda4
lrwxrwxrwx root     root              2015-04-13 15:12 PERSDATA -> /dev/block/sda13
lrwxrwxrwx root     root              2015-04-13 15:12 PERSISTENT -> /dev/block/sda11
lrwxrwxrwx root     root              2015-04-13 15:12 RADIO -> /dev/block/sda8
lrwxrwxrwx root     root              2015-04-13 15:12 RECOVERY -> /dev/block/sda6
lrwxrwxrwx root     root              2015-04-13 15:12 SBFS -> /dev/block/sda14
lrwxrwxrwx root     root              2015-04-13 15:12 STEADY -> /dev/block/sda12
lrwxrwxrwx root     root              2015-04-13 15:12 SYSTEM -> /dev/block/sda15
lrwxrwxrwx root     root              2015-04-13 15:12 TOMBSTONES -> /dev/block/sda9
lrwxrwxrwx root     root              2015-04-13 15:12 USERDATA -> /dev/block/sda18

whitch partition need to flash for downgrading specially sboot.bin cm.bin and param.bin ???

[markhaines1985]

If knox is tripped do this to write cert on new security.

Root phone with CF AUTO ROOT. Then use new z3x 26.3 exynos unlock solution to unlock phone. This also resets the MSL. Then write cert with z3x 22.6

CLICK HERE TO DOWNLOAD Z3X 22.6

[LiorBond007]

can someone confirm this solution working ?

[JT man]

Originally Posted by LiorBond007

can someone confirm this solution working ?

Trust me this guy knows what he's talking about, you have nothing worry about just follow steps

Make sure you thank him too...

Sent from my SM-N920T using Tapatalk

[cafonabob1]

BACKUP 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. 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. Press 'Read EFS' button to read backup or 'Write EFS' to restore.
5. Press 'Read CERT' button to read certificates or 'Write CERT' to restore.
6. Press 'Write NV DATA' if you need to restore NV backup.

Operation: Write CERT
Selected model: SM-G920T
Software version: 22.6

Checking certificate file... OK
KEY ID: 0346
Waiting ADB device... OK
Reading phone info...
Model: SM-G920T
Android version: 6.0.1
Product code:
Phone version: G920TUVU4EPF1
PDA version: G920TUVU4EPF1
CSC version: G920TTMB4EPF1
CSC country code: USA
CSC sales code: TMB
HW version:
Phone S/N:
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right... true
Initialization AT RIL... error

Done with Samsung Tool PRO v.22.6

[markhaines1985]

select model g920f then write cert

[markhaines1985]

sorry i thought i was posting on another thread. select G9200

[debeliamark]

Originally Posted by markhaines1985

If knox is tripped do this to write cert on new security.

Root phone with CF AUTO ROOT. Then use new z3x 26.3 exynos unlock solution to unlock phone. This also resets the MSL. Then write cert with z3x 22.6

CLICK HERE TO DOWNLOAD Z3X 22.6

You will not unlock this phone, due to security will be damaged after downgrade...

[Masoud.ebi]

Originally Posted by markhaines1985

If knox is tripped do this to write cert on new security.

Root phone with CF AUTO ROOT. Then use new z3x 26.3 exynos unlock solution to unlock phone. This also resets the MSL. Then write cert with z3x 22.6

CLICK HERE TO DOWNLOAD Z3X 22.6

your solution not work , phone successfully Unlock with 26.3 but cant write cert via 22.6 .

log

Operation: Write CERT
Selected model: SM-G920F
Software version: 22.6

Checking certificate file... OK
KEY ID: 0346
Waiting ADB device... OK
Reading phone info...
Model: SM-G920F
Android version: 6.0.1
Product code:
Phone version: G920FXXS4DPG1
PDA version: G920FXXU4DPG8
CSC version: G920FPHN4DPG1
CSC country code: The Netherlands
CSC sales code: PHN
HW version:
Phone S/N:
Modem board: SHANNON333
RF cal date:
IMEI:
Checking Super user right... true
Initialization AT RIL... error

Done with Samsung Tool PRO v.22.6

[Masoud.ebi]

Any solution ? helppp