G935F 8.0 baseband unknown no imei and wrong SN

[Damosco]

Hi all please help me i have 1 G935F 8.0 with baseband unknown no imei and wrong SN i flashed others roms and combinnation but same

Here are infos



G935FXXS4ESAF
SN on phone's menu is RF8H21VVT1F

SN on phone back is RF8H5132CJD
when i dial *#06# it write sm-g935F is not supported show imei


Help me thank to all

[amleto90]

Originally Posted by Damosco

Hi all please help me i have 1 G935F 8.0 with baseband unknown no imei and wrong SN i flashed others roms and combinnation but same

Here are infos



G935FXXS4ESAF
SN on phone's menu is RF8H21VVT1F

SN on phone back is RF8H5132CJD
when i dial *#06# it write sm-g935F is not supported show imei


Help me thank to all

Hello, you used the combination and tried to write several binary 4 firmware and you did not have any success in repairing the baseband.

It could be corrupted security, try using octopus box writing the phone security backup or backing up the same model of g935f if you have one or using z3x writing the nv file for g935f.

If in the case even with the writing of security you can correct the baseband, the problem could be hardware and not software

[Damosco]

Originally Posted by amleto90

Hello, you used the combination and tried to write several binary 4 firmware and you did not have any success in repairing the baseband.

It could be corrupted security, try using octopus box writing the phone security backup or backing up the same model of g935f if you have one or using z3x writing the nv file for g935f.

If in the case even with the writing of security you can correct the baseband, the problem could be hardware and not software

Thank boss did you have backup file? I'll try as you said Octopus and Z3X

[Abu_Adam]

Use octopus Samsung Tool
1. First of all make root by chainFire file(not box)
2. With octopus Samsung tool . Repair /wipe security option
3. Write cert
4. Repair your imei again
5. Mybe will ask to unlock network, you can do it for free


Sent from my iPhone using Tapatalk

[Damosco]

Originally Posted by Abu_Adam

Use octopus Samsung Tool
1. First of all make root by chainFire file(not box)
2. With octopus Samsung tool . Repair /wipe security option
3. Write cert
4. Repair your imei again
5. Mybe will ask to unlock network, you can do it for free


Sent from my iPhone using Tapatalk

Thank boss is possible to root 8.0 ? with 7.0 from chainfire?

[amleto90]

Originally Posted by Damosco

Thank boss is possible to root 8.0 ? with 7.0 from chainfire?

octopus and z3x do not support security repair the only way you can and write a security backup if you use octopus or use nv data for z3x.

You can only write the original cert if you have the backup of the original cert of the phone, you can not use other cert compatible for g935f having g935f the cpid certificate, the patch for android 8 for g935f is not supported by octopus and z3x but you can only use chimera tool

to do the root with android 8 you have to use the twrp not the autoroot cf is not supported and you can not downgrade to android 7

at this link you can find the efs, nv data and security backup for g935f

G935f efs
https://drive.google.com/file/d/0B2Z...5KcTZSNjg/view

G935f nv data
https://drive.google.com/file/d/0B2Z...RiM3Y4ZTg/view

G935f security backup
https://drive.google.com/file/d/0B2Z...5Ja3NnS00/view

[Damosco]

Originally Posted by amleto90

octopus and z3x do not support security repair the only way you can and write a security backup if you use octopus or use nv data for z3x.

You can only write the original cert if you have the backup of the original cert of the phone, you can not use other cert compatible for g935f having g935f the cpid certificate, the patch for android 8 for g935f is not supported by octopus and z3x but you can only use chimera tool

to do the root with android 8 you have to use the twrp not the autoroot cf is not supported and you can not downgrade to android 7

at this link you can find the efs, nv data and security backup for g935f

G935f efs
https://drive.google.com/file/d/0B2Z...5KcTZSNjg/view

G935f nv data
https://drive.google.com/file/d/0B2Z...RiM3Y4ZTg/view

G935f security backup
https://drive.google.com/file/d/0B2Z...5Ja3NnS00/view

Thank boss after writing your EFS i have imei 00000000000000 and tried to repair with z3x but failed


REPAIR 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. Select device in ADB settings.
5. Fill values what you need to repair.
6. Press 'Repair' button.
7. Press 'Patch Certificate' if you have network problem after repairing.
7. Press 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity. Backup will be created automatically.

Repair DRK (Use it if you have DRK damaged (phone stuck on boot)):
1. Power on the phone in download mode (turn off phone, hold vol.down + Camera + Power).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Press 'Repair DRK' button.

Operation: Patch Certificate
Selected model: SM-G935F
Software version: 34.11

Waiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 8.0.0
PDA version: G935FXXS4ESAF
CSC version: G935FOJV4ESAH
Phone version: G935FXXU4ESAE
Product code:
CSC country code: UAE
CSC sales code: XSG
Phone SN: RF8H327G0EF
IMEI: 000000000000000
HW version:
RF cal date:
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2019-02-01
Boot Warranty bit: 1
SIM State: NOT_READY
Checking Super user right... true
Reading NV data... OK
Checking NV data... error
Security damaged (decompress error)

Done with Samsung Tool PRO v.34.11

[amleto90]

Originally Posted by Damosco

Thank boss after writing your EFS i have imei 00000000000000 and tried to repair with z3x but failed


REPAIR 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. Select device in ADB settings.
5. Fill values what you need to repair.
6. Press 'Repair' button.
7. Press 'Patch Certificate' if you have network problem after repairing.
7. Press 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity. Backup will be created automatically.

Repair DRK (Use it if you have DRK damaged (phone stuck on boot)):
1. Power on the phone in download mode (turn off phone, hold vol.down + Camera + Power).
2. Connect the phone to PC with USB cable, install drivers if needed.
3. Press 'Repair DRK' button.

Operation: Patch Certificate
Selected model: SM-G935F
Software version: 34.11

Waiting ADB device... OK
Reading phone info...
Model: SM-G935F
Android version: 8.0.0
PDA version: G935FXXS4ESAF
CSC version: G935FOJV4ESAH
Phone version: G935FXXU4ESAE
Product code:
CSC country code: UAE
CSC sales code: XSG
Phone SN: RF8H327G0EF
IMEI: 000000000000000
HW version:
RF cal date:
Chip name: EXYNOS8890
Modem board: SHANNON335
Security patch: 2019-02-01
Boot Warranty bit: 1
SIM State: NOT_READY
Checking Super user right... true
Reading NV data... OK
Checking NV data... error
Security damaged (decompress error)

Done with Samsung Tool PRO v.34.11

If you read the z3x log you see that you have the damaged security of g935f.

Have you tried to write the nv data file with z3x or the security backup with octopus?

Then in the previous post I wrote you that z3x and octopus not support the pacth or write cert with android 8 for g935f.

the only one that supports ls patch and chimera tool for android 8 for g935f

[ak.slick47]

No fix for this I had the same issue with g930w8. Basically your efs folder is wiped or corrupted.

Sent from my SM-A520W using Tapatalk

[Damosco]

Originally Posted by amleto90

If you read the z3x log you see that you have the damaged security of g935f.

Have you tried to write the nv data file with z3x or the security backup with octopus?

Then in the previous post I wrote you that z3x and octopus not support the pacth or write cert with android 8 for g935f.

the only one that supports ls patch and chimera tool for android 8 for g935f

When i flashed your security backup with octopus all done but imiei still 0000000 and when i wrote NV with Z3X baseband became unknown again

[amleto90]

Originally Posted by Damosco

When i flashed your security backup with octopus all done but imiei still 0000000 and when i wrote NV with Z3X baseband became unknown again

when the imei is 000000000 you have to check the baseband if correct and then try to escape the efs

[Damosco]

Originally Posted by amleto90

when the imei is 000000000 you have to check the baseband if correct and then try to escape the efs

Yes when imei is 000000000000000 Baseband is good

So after baseband is ok what to do?

[amleto90]

Originally Posted by Damosco

Yes when imei is 000000000000000 Baseband is good

So after baseband is ok what to do?

you should try to write the efs, but unfortunately the patch with z3x and octopus is not 'supported for android 8 for g935f, the only one that supports it and' chimera tool if you have no chimera tool you can not do anything

[Damosco]

Originally Posted by amleto90

you should try to write the efs, but unfortunately the patch with z3x and octopus is not 'supported for android 8 for g935f, the only one that supports it and' chimera tool if you have no chimera tool you can not do anything

Ok boss i thank you for your help unfortunately i have not chimera.
Thank a lot

[AUGUSTIN45]

Originally Posted by Damosco

Ok boss i thank you for your help unfortunately i have not chimera.
Thank a lot

Bro, Download Combination ROM U4 and root it with Kingroot and then it's on Android 6.0 on Bit 4, Or else install Android 6.0 custom ROM