Step-by-step Rooting Guide with SuperSU for MI 8 - Xiaomi Mi 8 Guides, News, & Discussion

I wanted to make sure everyone read this part first so that you know it's critical to backup because it happened to me figuring things out. If for any reason you are stuck in a boot loop, just reload twrp recovery and restore boot.img that you backed up for an easy quick fix.
Install drivers and adb on your PC.
Open command prompt or search 'cmd'.
Navigate to the directory with adb.exe
Download and store TWRP 2.2.2 (preferred) in the same directory where adb is located. Recommend renaming recovery file to recovery.img
Enable usb debugging on device by going to settings > about > and click on MIUI version repeatedly until developer settings are enabled. Go back and select additional settings to enable usb debugging.
Run the command: adb devices - to verify if able to connect to device (the serial number of your device will populate if so.
Run the command: adb reboot bootloader and phone device should say "Fastboot" in blue font
Run the command: fastboot boot recovery.img
Recovery will show in Chinese, click on the bottom right button to select English
May require to enter your default password you use to unlock your phone normally.
Click backup and be sure to backup system, boot, and recovery most of all so it's easy to recover your device moving forward.
Download and save SuperSU (I have been unsuccessful in getting Magisk to work at this time) onto storage device from PC to MI 8 that should appear with your Internal storage
Click on "Mount" in TWRP and unselect read-only
Click "Install" and flash SuperSU then reboot (my device rebooted one time and fully boot up the 2nd time so you're not alarmed)
Links:
SuperSU: https://download.chainfire.eu/1122/SuperSU/SR3-SuperSU-v2.82-SR3-20170813133244.zip?retrieve_file=1
TWRP: https://forum.xda-developers.com/mi-8/development/recovery-twrp-3-2-2-0703-t38126005
Appreciate any feedback, ideas, thoughts, or suggestions where all can collaborate and expand where we help each other further. Look forward to the future development of the MI 8 folks! Please note, I wanted to share the method that seemed to work best for me, but please be aware each and every single MI 8 device is not always exactly the same and the end result may vary and I'm not held accountable or responsible should you choose to follow the directions listed above. However, I wanted to share this information to help avoid any frustration going forward and save you time.
p.s. - If someone could help me figure out how to get twrp recovery to hold and not end up being replaced by mi recovery I would be most grateful as this has been an issue for me (I tried flashing, booting, and installing the img through twrp with no success). Thank you.

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Hello thanks for your guide but i think we first need to unlock bl And for the twrp recovery to stick and not to be replaced by xiaomi recovery we need to flash something called "dm-verity " it basically removes that check, which replaces any other recovery by xiaomi recovery
Have a nice day and thanks for your work

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I thought so as well, unfortunately I just haven't had much luck with dm verity which led to a soft brick on my device. I'll have to look over the code as it may vary in comparison to other xiaomi devices.
Sent from my MI 8 using Tapatalk

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Fastboot flash recovery Command should do it ..
mekaziah said:
I wanted to make sure everyone read this part first so that you know it's critical to backup because it happened to me figuring things out. If for any reason you are stuck in a boot loop, just reload twrp recovery and restore boot.img that you backed up for an easy quick fix.
Install drivers and adb on your PC.
Open command prompt or search 'cmd'.
Navigate to the directory with adb.exe
Download and store TWRP 2.2.2 (preferred) in the same directory where adb is located. Recommend renaming recovery file to recovery.img
Enable usb debugging on device by going to settings > about > and click on MIUI version repeatedly until developer settings are enabled. Go back and select additional settings to enable usb debugging.
Run the command: adb devices - to verify if able to connect to device (the serial number of your device will populate if so.
Run the command: adb reboot bootloader and phone device should say "Fastboot" in blue font
Run the command: fastboot boot recovery.img
Recovery will show in Chinese, click on the bottom right button to select English
May require to enter your default password you use to unlock your phone normally.
Click backup and be sure to backup system, boot, and recovery most of all so it's easy to recover your device moving forward.
Download and save SuperSU (I have been unsuccessful in getting Magisk to work at this time) onto storage device from PC to MI 8 that should appear with your Internal storage
Click on "Mount" in TWRP and unselect read-only
Click "Install" and flash SuperSU then reboot (my device rebooted one time and fully boot up the 2nd time so you're not alarmed)
Links:
SuperSU: https://download.chainfire.eu/1122/SuperSU/SR3-SuperSU-v2.82-SR3-20170813133244.zip?retrieve_file=1
TWRP: https://forum.xda-developers.com/mi-8/development/recovery-twrp-3-2-2-0703-t38126005
Appreciate any feedback, ideas, thoughts, or suggestions where all can collaborate and expand where we help each other further. Look forward to the future development of the MI 8 folks! Please note, I wanted to share the method that seemed to work best for me, but please be aware each and every single MI 8 device is not always exactly the same and the end result may vary and I'm not held accountable or responsible should you choose to follow the directions listed above. However, I wanted to share this information to help avoid any frustration going forward and save you time.
p.s. - If someone could help me figure out how to get twrp recovery to hold and not end up being replaced by mi recovery I would be most grateful as this has been an issue for me (I tried flashing, booting, and installing the img through twrp with no success). Thank you.
Click to expand...
Click to collapse
Skickat från min MI 8 via Tapatalk

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what issues do you get with magisk? I was able to flash it without any issues.

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superior8888 said:
Fastboot flash recovery Command should do it ..
Skickat från min MI 8 via Tapatalk
Click to expand...
Click to collapse
Yes it does. Don't know why anyone would run SuperSU though.

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mekaziah said:
I thought so as well, unfortunately I just haven't had much luck with dm verity which led to a soft brick on my device. I'll have to look over the code as it may vary in comparison to other xiaomi devices.
Click to expand...
Click to collapse
MAKE SURE U HAVE UNLOCKED BOOTLOADER
here is wat i do
first i boot into twrp
(make sure u have rom.zip magisk/superuser.zip an twrp.img) on internal storage
then i wipe
dalvik cache
cache
data (NOT FORMAT)
system
then i flash
rom.zip
twrp.img
then i reboot recovery
fkash magisk.zip
then reboot system
now i have new rom an still have twrp on

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-fluffy- said:
here is wat i do
first i boot into twrp
(make sure u have rom.zip magisk/superuser.zip an twrp.img) on internal storage
then i wipe
dalvik cache
cache
data (NOT FORMAT)
system
then i flash
rom.zip
twrp.img
then i reboot recovery
fkash magisk.zip
then reboot system
now i have new rom an still have twrp on
Click to expand...
Click to collapse
Would you mind stating the version of Magisk?

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Strange Guide no Attention for Unlok Bl.

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barrielui said:
Would you mind stating the version of Magisk?
Click to expand...
Click to collapse
16.4

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magisk has been working fine for me for a while

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samwise110712 said:
what issues do you get with magisk? I was able to flash it without any issues.
Click to expand...
Click to collapse
What's your ROM version? I flash twrp then magisk, bootloop...

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-fluffy- said:
MAKE SURE U HAVE UNLOCKED BOOTLOADER
here is wat i do
first i boot into twrp
(make sure u have rom.zip magisk/superuser.zip an twrp.img) on internal storage
then i wipe
dalvik cache
cache
data (NOT FORMAT)
system
then i flash
rom.zip
twrp.img
then i reboot recovery
fkash magisk.zip
then reboot system
now i have new rom an still have twrp on
Click to expand...
Click to collapse
Hello how did you flash the TWRP through the TWRP ???
What version of MiUi you have ???

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omek07 said:
Hello how did you flash the TWRP through the TWRP ???
What version of MiUi you have ???
Click to expand...
Click to collapse
simple put twrp.img on ur storage
then flash img from twrp

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-fluffy- said:
simple put twrp.img on ur storage
then flash img from twrp
Click to expand...
Click to collapse
Yes but its asking after in which partition.
What partition you chose ?
---------- Post added at 08:26 AM ---------- Previous post was at 07:41 AM ----------
-fluffy- said:
simple put twrp.img on ur storage
then flash img from twrp
Click to expand...
Click to collapse
Could you please tell me what rom you have ???
Thank you

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omek07 said:
Yes but its asking after in which partition.
What partition you chose ?
---------- Post added at 08:26 AM ---------- Previous post was at 07:41 AM ----------
Could you please tell me what rom you have ???
Thank you
Click to expand...
Click to collapse
u choose recovery
im using miui eu

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magisk is running without any issue.
i am on the newest xiaomi eu beta rom and flashed magisk 16.7 without any issue right now
(after waiting horrible 15 days for unlocking the bootloader)

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Ok so both of you have the xiaomi eu. I have global stable 9.5.11. so maybe that's the problem
---------- Post added at 06:30 AM ---------- Previous post was at 06:29 AM ----------
So both of you have xiaomi eu rom. I have global stable 9.5.11. maybe that's the problem.

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omek07 said:
Ok so both of you have the xiaomi eu. I have global stable 9.5.11. so maybe that's the problem
---------- Post added at 06:30 AM ---------- Previous post was at 06:29 AM ----------
So both of you have xiaomi eu rom. I have global stable 9.5.11. maybe that's the problem.
Click to expand...
Click to collapse
I have the lastest global version, I cannot get the root access...
Someone tell me flash the Chinese verision then flash xiaomi.eu and magisk.

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felixrao said:
I have the lastest global version, I cannot get the root access...
Someone tell me flash the Chinese verision then flash xiaomi.eu and magisk.
Click to expand...
Click to collapse
My friend i changed to the Xiaomi eu and everything worked. You dont have to flash the Chinese Version first you can go from Global to Xiaomi.eu. Just dont forget to do FORMAT data and not only Wipe Data.