Magisk Root without custom Recovery and without losing Encryption - Xiaomi Mi 9 Guides, News, & Discussion

So, I unlocked my bootloader a couple of days ago, but when I got into the point of flashing TWRP, I realized that there is no custom recovery that supports device encryption.
For that reason I didn't root my phone but there is a way around that.
Code:
#include <std_disclaimer.h>
/*
*
* We are not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at us for messing up your device, we will laugh at you.
*
*/
1. Download the latest Magisk Manager from here and install it.
2. Download latest ROM from here and depending on your device.
3. Extract boot.img file from the ROM .zip file and copy it to phones internal storage.
4. Open Magisk Manager and go to settings. Select the Beta channel (stable did not work for me).
5. Go to home and select install magisk. Select patch boot image, and select the boot.img that we extracted earlier. Now a new file patched_boot.img will be created. Copy it to your PC.
6. Boot device into fastboot.
7. Execute fastboot flash boot /path/to/patched_boot.img .
8. Reboot device and you are rooted
All credits go to Magisk. I shared this, only because there are no such relevant information in this sub forum

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But now we have 10.2.17 and no download link. Tomorrow I can unlock my bootloader. Would it also work, if I download and modify the boot.img from 10.2.15?
Sent from my [device_name] using XDA-Developers Legacy app

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Many thanks, but I'm on 10.2.17. Could you kindly provide the patched boot img file?

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You can download the whole ROM here:
http://bigota.d.miui.com/V10.2.17.0...AGlobal_V10.2.17.0.PFAEUXM_53263ccd41_9.0.zip
Sent from my MI 9 using Tapatalk

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*delete*

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radii said:
Many thanks, but I'm on 10.2.17. Could you kindly provide the patched boot img file?
Click to expand...
Click to collapse
Got it working.
I have the 10.2.17 prepatchedboot.img. XDA does not allow me to attach to this post. If anyone can suggest easy (ie without setting up account) method of upload can do so

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Ok got it, will give it a try.

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radii said:
Got it working.
I have the 10.2.17 prepatchedboot.img. XDA does not allow me to attach to this post. If anyone can suggest easy (ie without setting up account) method of upload can do so
Click to expand...
Click to collapse
i need it , can you upload to dropbox? thanks.

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The boot.img is in the Link from Captus.

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Sure send username and password

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radii said:
Got it working.
I have the 10.2.17 prepatchedboot.img. XDA does not allow me to attach to this post. If anyone can suggest easy (ie without setting up account) method of upload can do so
Click to expand...
Click to collapse
I tried with the latest boot.img but no luck. It stuck in fastboot screen so I had to flash the original one! I will give it another try though!
Edit:
Success. I patched the image again and it worked, I do not know what was the problem the first time.

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WOUAHOUU ! it work very fine ! I routed my Mi9 (global original stock rom) in 15 seconds without changing recovery and without putting TWRP .. the top !
I wonder why this tutorial is not in the first position of the root procedure.
With this procedure, are the updates always done by OTA or does it need a new way?

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up ? because global rom just changed for 10.2.22 with a ota update. How can we do ?

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Strange. My global rom is 10.2.9.0

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So, this method gives full root acces? Like any other, more complicated, method? Any limitations?
Btw, what cpu governors does the default kernel support? Can they be changed with a Kernel Manager (Adiutor etc) after this root method?

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So, full root : I think that yes.. all my apks that require root work perfectly. It 'seems that there is non limitation.
but, I answer my own question: As with a modified recovery, the OTA no longer work either when it's a fix. But OTA work perfectly when it'a a full update.
SO ! This is the link for Global ROM 10.2.22 : https://bigota.d.miui.com/V10.2.22....AGlobal_V10.2.22.0.PFAEUXM_745a374eee_9.0.zip
Tuto to do full update and root :
We launch the update ota normally.
the phone reboots and announces that the update can not be done in this version.
Phone reboots normaly. You restart the OTA update : Phone then launches automatically a FULL update version 10.2.22
On the PC, We download the global rom and extract the boot.img
Then we use magisk to modify boot.img as in post nbr 1 page 1 and use adb for flashing the modified boot.img
Rooted !

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No luck with global rom is 10.2.9.0
tried patching multiple times using beta and stable.
roll back to boot.img original.

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Hi guys,
just got my brand-new Mi 9 a few days ago and rooting it drives me nuts.
I have rooted many devices but here my problem:
After using TWRP and Magisk, the system fails to boot, always goes into TWRP.
Then I used the method described here, the system fails to boot and goes into MI-Recovery.
When I flash back the original boot.img, the device boots fine.
Can anyone please help?
Thanks
Robert
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ChingghisKhan said:
Hi guys,
just got my brand-new Mi 9 a few days ago and rooting it drives me nuts.
I have rooted many devices but here my problem:
After using TWRP and Magisk, the system fails to boot, always goes into TWRP.
Then I used the method described here, the system fails to boot and goes into MI-Recovery.
When I flash back the original boot.img, the device boots fine.
Can anyone please help?
Thanks
Robert
Click to expand...
Click to collapse
Always flash ROM and fully boot into ROM first.
Then reboot after setup back in to TWRP and only then flash Magisk.
Flashing ROM + Magisk is fine with AOSP/Lineage etc. but MIUI ROMs always fail to boot if you install Magisk at the same time as an MIUI ROM

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ChingghisKhan said:
Hi guys,
just got my brand-new Mi 9 a few days ago and rooting it drives me nuts.
I have rooted many devices but here my problem:
After using TWRP and Magisk, the system fails to boot, always goes into TWRP.
Then I used the method described here, the system fails to boot and goes into MI-Recovery.
When I flash back the original boot.img, the device boots fine.
Can anyone please help?
Thanks
Robert
Click to expand...
Click to collapse
Try to use the beta channel of magisk. It will probably do the trick!