Flashing Kernel Patch for RMM on unsupported Note 9 caused it to stop booting

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EN90

New member
May 17, 2021
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Hello,

I've been trying to root my Note 9 using the "N960F_DS_N_Oreo_Root_for_OEM_issue_devices_V5" which I've found online and i believe it is based on what was developed by Dr. Ketan.
While flashing this setup, I selected "Proceed with ROM Flash and Multi tool", "Patch for OEM issue", "Flash Kernel Patch for RMM" and then "Root with Magisk". Once the installation is done and the device is rebooted, the phone no longer boots. It shows the logo Galaxy Note 9 powered by Android then black screen then loop again to Galaxy Note 9 logo and it stays in this loop. I can only break the loop by entering to the Download Mode and loading TWRP and staying there.

I'm suspecting that the "Flash Kernel Patch for RMM" that I've selected is not supported on my Note 9 Model.

Is there a way to revert back this change? or may be install back the default kernel?

Appreciate your help!

Regards,
Elias
 

EN90

New member
May 17, 2021
4
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As I can see you are proud owner of a softbricked phone.
My recommendation: re-flash phone's Stock ROM to get rid off of all mods you applied to the phone.
Thanks for your help.
I've downloaded this: https://androidfilehost.com/?fid=4349826312261705548
It's around 4.8GB. Is this what you're referring to?

Just to give some background, the phone got an accidental factory reset (which I still don't understand how) and i'm trying to retrieve at least some of the deleted data (mainly pictures/videos). All the recovery tools requested to have the phone rooted in order to do a deep scan. So I started this learning journey myself since no phone repair store was off help.
Would reflashing the phone stock ROM affect my chances of retrieving my data?

Thanks!
 

jwoegerbauer

Senior Member
  • Jul 11, 2009
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    The Factory Reset performed erased all your user data: though they are still physically present on device, their entry in Android's MTF got removed. IMO it requires a forensic tool to recover them.

    As soon as you re-flash the phone with Stock ROM the disk space utilised by user data again gets wiped ( means a new MFT gets created), so the chance to recover user data previously stored there is NULL.
     
    Last edited:

    EN90

    New member
    May 17, 2021
    4
    0
    The Factory Reset performed erased all your user data: though they are still physically present on device, their entry in Android's MTF got removed. IMO it requires a forensic tool to recover them.

    As soon as you re-flash the phone with Stock ROM the disk space utilised by user data again gets wiped ( means a new MFT gets created), so the chance to recover user data previously stored there is NULL.
    I was checking this thread on this form: https://4pda.to/forum/index.php?showtopic=915992&st=520
    it seems that it's the same problem as mine and he was able to resolve it by flashing the original kernel. Not sure how i can do the same.
     

    EN90

    New member
    May 17, 2021
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    With regards to recovering wiped user data: As I can see you didn't get it. :)
    hmmm, what i understood is that if I go and flash the phone with Stock ROM (to make it boot again) I'll lose any chance of getting my data back even with a forensic tool. Is that what you meant?
    So I was trying to say that what if I just flash back the original kernel to solve my booting issue, would it also affect the possibility of retrieving the lost data?
    Unless I'm confused with the terminologies and flashing kernel is the same as flashing the Stock ROM. I'm quite new to this :).

    I appreciate your help!
     

    jwoegerbauer

    Senior Member
  • Jul 11, 2009
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    @EN90

    As with Android

    Kernel
    is the core part of Android OS and is based on Linux. It is the system which initializes, configures and sets all hardware components for use. It prepares the complete system for functioning. It consits of several sub-systems and services.


    Stock ROM is a read only memory chip on the phone's motherboard that contains the Android OS image that boots every time you turn on your phone. A ROM contains full Android OS system and a few system apps that comes pre installed with the device.