• Introducing XDA Computing: Discussion zones for Hardware, Software, and more!    Check it out!

[GUIDE][UNBRICK] How unbrick your bootloop in MERLIN after flashing TWRP (Xiaomi Redmi Note 9 / Xiaomi Redmi 10X 4G)

Search This thread
Feb 3, 2021
45
0
Well, i flashed it, and now it causes a hard-reboot, what i mean by that is, it's forced, rather than executed.
This causes it to reboot into recovery, which thank god still works.
 

VD171

Senior Member
Jun 21, 2012
1,925
2
1,595
127.0.0.1
LG K10
Samsung Galaxy J7
Well, i flashed it, and now it causes a hard-reboot, what i mean by that is, it's forced, rather than executed.
This causes it to reboot into recovery, which thank god still works.
Well it definetly does not, it causes a bootloop for me. Dunno, maybe it's a hardware issue.
If you've erased misc partition and your device keep booting to recovery, certainly any partition is broken/corrupted.
If you've flashed the full original stock rom and it keep on bootloop, certainly you've modified any other partition not present in full original stock rom.
Like nvdata.
You need to retrace your steps to find what may have happened.
 
  • Like
Reactions: RN9_G85
Feb 3, 2021
45
0
1613565472962.png


It's most likely a hardware issue since i tried doing this:
1613565573428.png


And then i flashed the stock rom, after a hard brick.
 

VD171

Senior Member
Jun 21, 2012
1,925
2
1,595
127.0.0.1
LG K10
Samsung Galaxy J7
View attachment 5224667

It's most likely a hardware issue since i tried doing this:
View attachment 5224669

And then i flashed the stock rom, after a hard brick.
May you try to flash the full stock rom using SP FLASH TOOL ?
Try "firmware upgrade" mode, it will erase all other partitions with variable data (like userdata too, misc, nvdata)
It's like a full factory reset.

(Keep atention to do NOT flash using "format all" mode ! Otherwise, you will LOSE all your identifications like imei and mac.)
 
Last edited:
  • Like
Reactions: RN9_G85

VD171

Senior Member
Jun 21, 2012
1,925
2
1,595
127.0.0.1
LG K10
Samsung Galaxy J7
Read the guide: How to solve "LIB DA not match" error ?
 
Last edited:
  • Like
Reactions: RN9_G85

Matutebal

New member
Jan 18, 2019
2
0
Hola tengo el xiaomi note 9 merli 3gb de ram e hice todo solo que cuando entro en fastboot flasheo el recovery twrp ahora solo se enciende y apaga bootloop no ingresa fastboot ni modo recovery

----------

MOD EDIT: English Translation Below

Hello I have the xiaomi note 9 merli 3gb of ram and I did everything only that when I enter fastboot I flash the recovery twrp now it only turns on and off bootloop does not enter fastboot or recovery mode
 
Last edited by a moderator:

Matutebal

New member
Jan 18, 2019
2
0
Tengo ese problema solo que la pc no me lleva, se conecta y desconecta boot loop infinite

----------

MOD EDIT: English Translation Below

I have that problem only that the pc does not take me, it connects and disconnects boot loop infinite
 
Last edited by a moderator:

VD171

Senior Member
Jun 21, 2012
1,925
2
1,595
127.0.0.1
LG K10
Samsung Galaxy J7
  • Like
Reactions: RN9_G85
Feb 3, 2021
45
0
English only, please.
Right... i tried the SP flash solution, it left the same result, is there any other Hard Reset method maybe? Like resseting the FRP with the hydra tool for example, or literally anything else. Or maybe there's a hard reset funcion in Fastboot? I've tried looking but honestly all i've found are either IMEI reset guides or FRP reset guides, etc.
 
Feb 3, 2021
45
0
Also, wouldn't it be a good idea to explore the partitions in ADB Shell? I still can't get it to work with root permissions, or with any at all.. just gives me a message "closed."
 

VD171

Senior Member
Jun 21, 2012
1,925
2
1,595
127.0.0.1
LG K10
Samsung Galaxy J7
Right... i tried the SP flash solution, it left the same result, is there any other Hard Reset method maybe? Like resseting the FRP with the hydra tool for example, or literally anything else. Or maybe there's a hard reset funcion in Fastboot? I've tried looking but honestly all i've found are either IMEI reset guides or FRP reset guides, etc.
Hydra or any other dongle is totally unnecessary. Please, attach the screenshot.
Also, wouldn't it be a good idea to explore the partitions in ADB Shell? I still can't get it to work with root permissions, or with any at all.. just gives me a message "closed."
Magisk can't modify that partitions to "read-write", so they keep "read-only".
You really need fastboot or spflashtool for modifying partitions.
 
  • Like
Reactions: RN9_G85

VD171

Senior Member
Jun 21, 2012
1,925
2
1,595
127.0.0.1
LG K10
Samsung Galaxy J7
Hola tengo el xiaomi note 9 merli 3gb de ram e hice todo solo que cuando entro en fastboot flasheo el recovery twrp ahora solo se enciende y apaga bootloop no ingresa fastboot ni modo recovery

----------

MOD EDIT: English Translation Below

Hello I have the xiaomi note 9 merli 3gb of ram and I did everything only that when I enter fastboot I flash the recovery twrp now it only turns on and off bootloop does not enter fastboot or recovery mode
Tengo ese problema solo que la pc no me lleva, se conecta y desconecta boot loop infinite

----------

MOD EDIT: English Translation Below

I have that problem only that the pc does not take me, it connects and disconnects boot loop infinite
Does your device keep frozen in a black screen if you try to enter in TWRP ?
 
  • Like
Reactions: RN9_G85

Kain105

Member
Dec 1, 2013
9
3
hi got a problem:
1. phone bootloops (only Redmi written) then restarts
2. cannot enter fastboot nor recovery, just restarts
tried edl with test point, didn't work
pc doesn't recognise any adb
when vol - and power button pressed, pc fast notificates plug and unplug (guess it means pc recognises phone)
 

Top Liked Posts

  • There are no posts matching your filters.
  • 3
    If you try to flash the file misc.bin your device can be in bootloop forever, please follow this guide to fix it.

    It works with:
    - Xiaomi Redmi Note 9
    - Xiaomi Redmi 10X 4G

    Method 1:

    Once your device is on the black screen, plug it on USB (try USB3.0 first).

    And then check if it is detected in adb recovery mode:
    Code:
    adb devices

    If you can see your device in adb recovery mode, you have to erase misc partition:
    Code:
    dd if=/dev/zero of=/dev/block/mmcblk0p2

    After it is done, you can reboot your device to system or fastboot again.

    Keep atention, if you execute this command wrong, you will ERASE any other partition and it can brick your device forever and cause more damages.

    Method 2:


    Once your device is on the black screen, plug it on USB (try USB3.0 first).

    And then check if it is detected in adb recovery mode:
    Code:
    adb devices

    And then reboot to bootloader:
    Code:
    adb reboot bootloader

    And then check if it is detected in fastboot mode:
    Code:
    fastboot devices

    If you can see your device in fastboot mode, you have to erase misc partition:
    Code:
    fastboot erase misc

    Keep attention, if you try to format misc partition, you will get this error: Formatting is not supported for file system with type 'raw data'.

    After it is done, you can reboot your device to system or fastboot again.

    Keep atention, if you execute this command wrong, you will ERASE any other partition and it can brick your device forever and cause more damages.

    Good luck !



    :unsure: Do you need help with your MERLIN device ?
    Read this FAQ: https://forum.xda-developers.com/t/...for-merlin-redmi-note-9-redmi-10x-4g.4225163/
    2
    12.0.5.0
    thank you so much for the interest man
    You need to flash in EDL mode.
    Just bypass the authentication: https://forum.xda-developers.com/t/...d-flash-in-edl-with-no-auth-for-free.4229679/
    1
    I flashed the entire ROM,

    So yes,

    Every single partition, except misc since it's gone now,
    When i say "Every Single Partition", I mean every single one,
    this includes,

    Scp1/2
    super
    ..etc.
    Misc partition is not present in original stock rom.
    It contains a variable data/parameter for boot.
    Did you solve the bootloop after flash full rom?
    1
    No,
    Here are the full details:

    1. I tried flashing the recovery partition, Nothing.
    2. I used an unnofficial TWRP ROM that hard bricked my device, this includes the following partitions:
    Misc Opt Vbmeta Recovery
    3. I managed to get into ADB recovery, i got into fastboot, then flashed the stock rom.
    4. Boot loop
    You need to avoid the misc partition.
    If you've flashed it, you REALLY need to erase it.
    Or, it will make your device to enter in recovery forever.

    Vbmeta needs to be flashed with disababled verification.
    Here you can find safe and secure vbmeta with disabled verification: https://forum.xda-developers.com/t/...omi-redmi-note-9-xiaomi-redmi-10x-4g.4218909/
    Or, it will detect modification on partitions and will reboot the device forever.

    I think Opt doesn't change anything.
    I'm not sure, but I think it only matter for devices without vbmeta partition. (I'M NOT SURE.)
    Because it modifies the system, and obviously you will get in a bootloop.
    If you want to modify the system, you need to debloat your system before.

    Try to flash the whole system again.
    Or just try to flash the whole rom again.
    1
    can someone help me it stuck on redmi logo and restart all the time, cant go into fast boot or recovery.
    i did this tuturial but it bricked. help please
    Try to flash the MIUI rom again using spflashtool.