Database Users

[Guide] Install Chinese Beta Firmware 6.4.16 (EMUI 4.0, Android 6.0) from 2016.04.16

Taken in parts from information provided by Gluk41 on the russian 4pda forum, here is a simple guide how to install the latest Chinese Marshmallow (beta) on your Honor 4c / GPlay mini:
Be aware that:
all userdata will be erased, TWRP recovery, gapps and root have to be redone
system partition is almost full, pico opengapps barely fit (better to remove some apps)
this is a developer beta version for the chinese market (but has all languages included)
Downloads & Installation
Flash TWRP from here and backup whatever you need
Download the complete 6.4.16 ROM here and copy the dload folder to SD card
Flash the region information for UL00 umicom / cn from TWRP
Reboot and all 3 buttons pressed until the installation starts
--
Update: For your convenience I put all 3 files in the Mega Folder
--
The 3 button method uses its own built-in recovery and can be used with TWRP installed! All 3 buttons might have to be pressed for quite some time (20sec or even longer) until it starts. The ROM installs fine with the correct region information, otherwise it will fail around 5%.
TWRP & root
TWRP will be replaced by the standard recovery and needs to be re-flashed. For Root follow the MM Root thread by inshaalmirza. I had to flash the current SuperSU 2.7.1 beta twice until it worked.
The pre-installed app 'Phone Manager' seems to block SuperSU from working correctly. You might not see the root request if you start an app that requires root. A work-around is, to manually start SuperSU before or after starting the app that requires root. The, request eventually will pop up after a few seconds. Either uninstall the Phone Manager or configure it not to block SuperSU.
Google Apps
This ROM comes without Google Apps and a lot of chinese apps pre-installed. The system partition is almost full. Therefore it is recommended to remove some of the chinese apps before flashing Gapps. Use the openGapps arm64 6.0 pico version, others will not fit unless you remove a lot of the pre-installed apps. Flash the Gapps via TWRP, reboot and let the phone settle for a few minutes. After unlocking, you will get a black screen. Reboot in TWRP and wipe all user data. After the next reboot, setup wizard should start and everything should be fine.
Enjoy but be aware, it is just a developer beta version.

In China the latest update is 6.2.1,not 6.4.16. I wonder where is 6.4.16 from.Sorry for my bad English.
来自搭载Android 2.3 GingerBread的华为Y220-T10

how to go back from china marshmallow firmare to india firmware marshmallow.

Do I need to be bootloader unlocked before installing this ROM?
Inviato dal mio GT-N8000 utilizzando Tapatalk

Yes Bootloader should be unlock. But battery is poor

help
i cacant download thats rom,do u have another link?

JobSup said:
Taken in parts from information provided by Gluk41 on the russian 4pda forum, here is a simple guide how to install the latest Chinese Marshmallow (beta) on your Honor 4c / GPlay mini:
Be aware that:
all userdata will be erased, TWRP recovery, gapps and root have to be redone
system partition is almost full, pico opengapps barely fit (better to remove some apps)
this is a developer beta version for the chinese market (but has all languages included)
Downloads & Installation
Flash TWRP from here and backup whatever you need
Download the complete 6.4.16 ROM here and copy the dload folder to SD card
Flash the region information for UL00 umicom / cn from TWRP
Reboot and all 3 buttons pressed until the installation starts
--
Update: For your convenience I put all 3 files in the Mega Folder
--
The 3 button method uses its own built-in recovery and can be used with TWRP installed! All 3 buttons might have to be pressed for quite some time (20sec or even longer) until it starts. The ROM installs fine with the correct region information, otherwise it will fail around 5%.
TWRP & root
TWRP will be replaced by the standard recovery and needs to be re-flashed. For Root follow the MM Root thread by inshaalmirza. I had to flash the current SuperSU 2.7.1 beta twice until it worked.
The pre-installed app 'Phone Manager' seems to block SuperSU from working correctly. You might not see the root request if you start an app that requires root. A work-around is, to manually start SuperSU before or after starting the app that requires root. The, request eventually will pop up after a few seconds. Either uninstall the Phone Manager or configure it not to block SuperSU.
Google Apps
This ROM comes without Google Apps and a lot of chinese apps pre-installed. The system partition is almost full. Therefore it is recommended to remove some of the chinese apps before flashing Gapps. Use the openGapps arm64 6.0 pico version, others will not fit unless you remove a lot of the pre-installed apps. Flash the Gapps via TWRP, reboot and let the phone settle for a few minutes. After unlocking, you will get a black screen. Reboot in TWRP and wipe all user data. After the next reboot, setup wizard should start and everything should be fine.
Enjoy but be aware, it is just a developer beta version.
Click to expand...
Click to collapse
Great guide ..
Sent from my KIW-L22 using Tapatalk

Thanks

jkccl9 said:
Thanks
Click to expand...
Click to collapse
Ohh
Sent from my KIW-L22 using Tapatalk

gopinaidu77 said:
Ohh
Click to expand...
Click to collapse

Rooting Moto G4 Plus

I just got my Moto G4 Plus and want to root it. Does somebody have a good guide for rooting it?
I found this guide on youtube, can I just follow this?: https://www.youtube.com/watch?v=g3bhXe3msxU&t=3s

What stock OS are you running on your device, Marshmallow or Nougat?

echo92 said:
What stock OS are you running on your device, Marshmallow or Nougat?
Click to expand...
Click to collapse
I just updated to Android 6.0.1 Marshmallow

If you're on Marshmallow (6.0.1), then the guide you linked should work, you may wish to keep the stock kernel (and not flash ElementalX). Also, instead of phh superuser, you could choose to flash SuperSU or magisk.
Here's a guide for rooting on Marshmallow 6.0.1 as well https://forum.xda-developers.com/moto-g4-plus/how-to/root-systemless-rooting-supersu-2-74-2-t3405772 You may wish to use a newer build of SuperSU than mentioned in the guide - the latest build currently is 2.82 SR1.

echo92 said:
If you're on Marshmallow (6.0.1), then the guide you linked should work, you may wish to keep the stock kernel (and not flash ElementalX). Also, instead of phh superuser, you could choose to flash SuperSU or magisk.
Here's a guide for rooting on Marshmallow 6.0.1 as well https://forum.xda-developers.com/moto-g4-plus/how-to/root-systemless-rooting-supersu-2-74-2-t3405772 You may wish to use a newer build of SuperSU than mentioned in the guide - the latest build currently is 2.82 SR1.
Click to expand...
Click to collapse
I found a video that showed how to unlock bootloader, and uses SuperSU when rooting. Can I use this guide insted, or is it to old you think?: https://www.youtube.com/watch?v=dK2uacpjGwc&t=119s
Thank you so much for all the help btw

skismas said:
I found a video that showed how to unlock bootloader, and uses SuperSU when rooting. Can I use this guide insted, or is it to old you think?: https://www.youtube.com/watch?v=dK2uacpjGwc&t=119s
Thank you so much for all the help btw
Click to expand...
Click to collapse
Looking through that video, I think it should work for 6.0.1 - as an aside for anyone reading this, the root procedure for Nougat is different. Though the resources linked in the video may work (I have not tested them), you may, as I mentioned above, wish to flash newer versions of TWRP and SuperSU than that linked in the video:
TWRP - (official): https://dl.twrp.me/athene/
I personally use shreps' TWRP: https://forum.xda-developers.com/mo...covery-twrp-3-0-2-r3-moto-g4-g4-plus-t3494337
SuperSU v2.82: https://forum.xda-developers.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703 Ideally, you'll want to use v2.79 SR3 or newer as they're systemless root.
EDIT: this guide linked to in the video has a nice description of some of the steps you'll need: https://forum.xda-developers.com/moto-g4-plus/how-to/guide-newbie-resource-thread-t3386584
One thing I'd add to those guides is before you flash SuperSU, make a backup of all of the partitions in TWRP (on the TWRP main menu, you'll see 'Backup'). If SuperSU fails to root or causes instabilty, you'll have a backup to fall back to.
Additionally, when flashing TWRP, you'll see the 'Image not signed or corrupted' warning, that's normal. As long as [OKAY] comes up in fastboot after flashing and you reboot to recovery afterwards (so TWRP is set as your recovery), then TWRP should stick.
You may also receive OTA messages - do not accept these whilst rooted and with TWRP. if you wish to turn them off, have a look here: https://forum.xda-developers.com/showpost.php?p=72373828&postcount=12

Don't FLASH TWRP, just BOOT it up, do whatever you need to do and... keep your stock bootloader. The TWRP is useful mostly for CM/Lineage ROM's, for stock it's just a headache waiting to happen.

echo92 said:
Looking through that video, I think it should work for 6.0.1 - as an aside for anyone reading this, the root procedure for Nougat is different. Though the resources linked in the video may work (I have not tested them), you may, as I mentioned above, wish to flash newer versions of TWRP and SuperSU than that linked in the video:
TWRP - (official): https://dl.twrp.me/athene/
I personally use shreps' TWRP: https://forum.xda-developers.com/mo...covery-twrp-3-0-2-r3-moto-g4-g4-plus-t3494337
SuperSU v2.82: https://forum.xda-developers.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703 Ideally, you'll want to use v2.79 SR3 or newer as they're systemless root.
EDIT: this guide linked to in the video has a nice description of some of the steps you'll need: https://forum.xda-developers.com/moto-g4-plus/how-to/guide-newbie-resource-thread-t3386584
One thing I'd add to those guides is before you flash SuperSU, make a backup of all of the partitions in TWRP (on the TWRP main menu, you'll see 'Backup'). If SuperSU fails to root or causes instabilty, you'll have a backup to fall back to.
Additionally, when flashing TWRP, you'll see the 'Image not signed or corrupted' warning, that's normal. As long as [OKAY] comes up in fastboot after flashing and you reboot to recovery afterwards (so TWRP is set as your recovery), then TWRP should stick.
You may also receive OTA messages - do not accept these whilst rooted and with TWRP. if you wish to turn them off, have a look here: https://forum.xda-developers.com/showpost.php?p=72373828&postcount=12
Click to expand...
Click to collapse
I managed to root my phone without bricking it! I think......
SuperSU was not on the phone when I rebooted the phone like in the video. I had to download it through play store. But since it says its rooted on root checker, and I could grant it permission, im pretty sure I done it right.
Thanks for the help I really appreciate it

[SOLVED] A way to patch boot.img with magisk v17.3

Hi everyone, yesterday I unlocked and flashed TWRP on my CPN-L09 following this guide.
I successfully rooted stock with latest magisk, the only problem is that the fp sensor stops working.
After some research i've found this issue on magisk github: https://github.com/topjohnwu/Magisk/issues/862
Some users are reporting fp sensor problem with magisk 18+.
So I would like to try patching boot.img with magisk 17.3, do anyone knows a way to do it? As magisk manager tries to download the latest version.
Also I paid 15€ on easy firmware to download the FullOTA of my tablet so I can restore as it was. Really dont know if I can share a mirror with that file, and I have some credits that im not going to use so, if someone need the full ota I could share it. Again I dont know if sharing a mirror is against the rules so let me know.
UPDATE:
I successfully rooted my CPN-L09 (Mediapad M3 Lite 8 LTE) using a custom recovery that I made.
You can find the recovery here: https://mega.nz/#!9VdlRKaQ!jgUX6n9lIK1Ey-c9gk2fegHmjtgYtbPO6bum05Q5RCk
Ignore the errors while flashing, also I didn't test other twrp functions so be careful this is my first time making a custom recovery.
Steps for rooting:
1- Flash recovery using fastboot "fastboot flash recovery recovery_magisk.img"
2- Enter recovery power button + volume up
3- Flash this magisk version.
4- Boot and install this version of magisk manager.
5- Disable update check for magisk.
6- Enjoy root with fp sensor working.
As usual im not responsible if you brick your device. You do everything at your own risk!

[Urgent] Issues Flashing Magisk 19 on P9 Lite (VNS-L31)

Hi people!
I tried to unlock bootloader of my p9 lite
VNS-L31, android 7.0, stock emui 5.0.x
Got the code, unlocked, installed many twrps
to see wich was the best one to flash magisk 19.
All good, but everytime i did a magisk flash,
the phone didnt reboot properly.
(Got bootloop, sometimes got the reset phone screen entering a password {??} along with red errors in all twrps) im sure i did all correctly, this isnt the first time
I do a root on a smartphone... the point is:
I think that magisk is what causes these errors and
Forces me to hard reset the device to use it again (dload or huawey extractor)
i need magisk 19+ first because i need a systemless root, then i need many magisk modules
On my phone. Also tryed with custom rom based on
Emui 5.0.x through meticulus twrp 5.2, elite 3.1.1 twrp.
No way to install magisk without getting errors.
--- 》So if you guys could give me some tips to fix this issues, i would appreciate it so much. It could be my bad or maybe i need to do something else in order to get magisk working. 2 days trying, need help of the best modders here. Thanks in advance to all, and best regards from italy! :good:

Is it possible to root the phone and still getting OTA updates ?

I want to root my phone due to its huge benefits but also at the same time I want to keep my OTAs
Is it possible even if I will install them manually (but the data remains with no wipe) ?
And if so, how can I do this and whats the best way?
Thanks in advance and sorry if the language was bad <3

Tsunaimy said:
I want to root my phone due to its huge benefits but also at the same time I want to keep my OTAs
Is it possible even if I will install them manually (but the data remains with no wipe) ?
And if so, how can I do this and whats the best way?
Thanks in advance and sorry if the language was bad <3
Click to expand...
Click to collapse
Yes it's possible with a little workaround, to temporarily switch to stock Recovery (from TWRP, if you had it installed) and to stock Boot (from the one patched by Magisk) during the OTA upgrade - OTA will fail if it finds not the stock images of Recovery and Boot
After the upgrade you just flash the new Boot patched by Magisk (and flash TWRP if you will)
Or you flash TWRP and flash Magisk from TWRP
Below is a post how I recently upgraded from QFJEUXM 12.0.2 to 12.0.3. Btw, I downloaded zip and initiated OTA manually because I didn't want to wait more days to be pushed for OTA, but that's just a small detail not important for the way how to do it:
https://forum.xda-developers.com/showpost.php?p=83791185&postcount=93
Ofc, all my data, apps, settings, and Magisk modules were preserved
Generally, in the Redmi K20/Mi 9T Guides section on XDA you can find (at least two) threads about how-to root, i.e. install Magisk
Those threads describe the way to install Magisk by installing Magisk Manager, patching the Boot image, then flashing it from Fastboot (I prefer that way).
In that case TWRP is not needed (but it can be also installled)
Threads and guides are maybe old (since MIUI 11) but it doesn't matter, it's always the same method (essentially the same as in my post I gave you the link above, its part about returning back to Magisk after the OTA upgrade)
If you follow those guides you must pay attention that you patch the boot.img for exactly that (new) stock MIUI you do have and that you now use new Magisk (not some old versions as in the guides)
Alternatively, you flash TWRP by Fastboot, then flash Magisk zip from TWRP and then you install Magisk Manager
All those methods are described in other threads and posts.
Anyway, you must first unlock the Bootloader, again there is thread with a guide, or just google for how to unlock Bootloader on Xiaomi
Btw, some custom TWRP versions and Orange Fox do have Advanced options for upgrading MIUI and to keep Magisk, but when I did it that way for upgrading from QFJEUXM 11.0.5 to 12.0.2, it made me Factory reset and I lost all my files on Internal memory (it was generally an issue for the others who upgraded from MIUI 11 to MIUI 12 by flashing OTA through custom recovery)
Hence now for upgrading to 12.0.3 I didn't want to risk and did it as above

zgfg said:
Yes it's possible with a little workaround, to temporarily switch to stock Recovery (from TWRP, if you had it installed) and to stock Boot (from the one patched by Magisk) during the OTA upgrade - OTA will fail if it finds not the stock images of Recovery and Boot
After the upgrade you just flash the new Boot patched by Magisk (and flash TWRP if you will)
Or you flash TWRP and flash Magisk from TWRP
Below is a post how I recently upgraded from QFJEUXM 12.0.2 to 12.0.3. Btw, I downloaded zip and initiated OTA manually because I didn't want to wait more days to be pushed for OTA, but that's just a small detail not important for the way how to do it:
https://forum.xda-developers.com/showpost.php?p=83791185&postcount=93
Ofc, all my data, apps, settings, and Magisk modules were preserved
Generally, in the Redmi K20/Mi 9T Guides section on XDA you can find (at least two) threads about how-to root, i.e. install Magisk
Those threads describe the way to install Magisk by installing Magisk Manager, patching the Boot image, then flashing it from Fastboot (I prefer that way).
In that case TWRP is not needed (but it can be also installled)
Threads and guides are maybe old (since MIUI 11) but it doesn't matter, it's always the same method (essentially the same as in my post I gave you the link above, its part about returning back to Magisk after the OTA upgrade)
If you follow those guides you must pay attention that you patch the boot.img for exactly that (new) stock MIUI you do have and that you now use new Magisk (not some old versions as in the guides)
Alternatively, you flash TWRP by Fastboot, then flash Magisk zip from TWRP and then you install Magisk Manager
All those methods are described in other threads and posts.
Anyway, you must first unlock the Bootloader, again there is thread with a guide, or just google for how to unlock Bootloader on Xiaomi
Btw, some custom TWRP versions and Orange Fox do have Advanced options for upgrading MIUI and to keep Magisk, but when I did it that way for upgrading from QFJEUXM 11.0.5 to 12.0.2, it made me Factory reset and I lost all my files on Internal memory (it was generally an issue for the others who upgraded from MIUI 11 to MIUI 12 by flashing OTA through custom recovery)
Hence now for upgrading to 12.0.3 I didn't want to risk and did it as above
Click to expand...
Click to collapse
I really appreciate your reply but I kinda don't know much info to understand most of what u said
My last time with root was about 3 years ago with king root on Mi A1 and I didn't care about updates then
so it's my very first time with magisk and TWRP and that stuff
Could u tell me what is the best method of u mentioned to keep my files and everything with no delete and also makes me able to upgrade Official ROM with no deletes
After this i'll start digging to learn but I want to know what should I dig for
Thanks bro

Tsunaimy said:
I really appreciate your reply but I kinda don't know much info to understand most of what u said
My last time with root was about 3 years ago with king root on Mi A1 and I didn't care about updates then
so it's my very first time with magisk and TWRP and that stuff
Could u tell me what is the best method of u mentioned to keep my files and everything with no delete and also makes me able to upgrade Official ROM with no deletes
After this i'll start digging to learn but I want to know what should I dig for
Thanks bro
Click to expand...
Click to collapse
Unlocking Bootloader usually takes to wait 7 days=168 hours, hence you have enough time to read?
Unlocking Bootloader:
https://c.mi.com/thread-1857937-1-1.html
Unlocking Bootloader: and Installing TWRP, OP post #1:
https://forum.xda-developers.com/mi-9t/how-to/guide-unlock-bootloader-flash-xiaomi-eu-t3952443
- for step 6, installing TWRP, use TWRP I'm giving you below
- instead of 7, execute this command:
>> fastboot oem reboot-recovery
- step 7, don't Format Data (unless you really go to install custom ROM, otherwise you don't need to)
- stop here for installing TWRP
Suggesting you to use this TWRP, 3.4.0.2 from OP post #1:
https://forum.xda-developers.com/mi-9t/how-to/recovery-unofficial-twrp-3-4-0-1-t4135159
- every time you boot to TWRP, you must type in your Android screen unlock pin, TWRP needs to be able to read/write to Data and Internal memory
Learn about using ADB and Fastboot:
https://www.makeuseof.com/tag/use-adb-fastboot-android/
- you can't do things with ADB that require root, but you can read
- similarly, fastboot commands mostly require unlocked Bootloader, but you can read
- google yourself
About installing Magisk, read in these threads:
https://forum.xda-developers.com/mi-9t/how-to/guide-easiest-to-root-twrp-t4000209
https://forum.xda-developers.com/mi-9t/how-to/root-k20-indian-rom-v10-3-6-0-twrp-t3958566
- if you have time, go through the whole threads, you will see variations
- don't worry if talking about MIUI 11, same applies for MIUI 12, you will just need to download your MIUI 12 recovery/zip firmware, will give you link below
- I'll give you below the link for the latest Magisk
MIUI firmwares, download, etc:
https://androidfilebox.com/tips/how-to-install-miui-recovery-rom/
https://androidfilebox.com/tips/how-to-install-miui-fastboot-rom/
https://xiaomiflashtool.com/tutorial/use-xiaomi-flash-tool
https://xiaomifirmwareupdater.com/miui/davinci/
https://codeexercise.com/xiaomi-all-android-mobile-secret-code-list/amp/
Various methods to extract stock Recovery, Boot, Persist and Persistbak partitions:
https://forum.xda-developers.com/mi-9t/how-to/root-k20-indian-rom-v10-3-6-0-twrp-t3958566
Magisk documentation and download:
https://github.com/topjohnwu/Magisk/blob/master/README.MD
- read the docs
- I would suggest you to use Canary (don't worry, Stable is far behind), hence you will only need to download Magisk Manager Canary (then follow XDA guides I gave you above)

zgfg said:
Unlocking Bootloader usually takes to wait 7 days=168 hours, hence you have enough time to read
Unlocking Bootloader:
https://c.mi.com/thread-1857937-1-1.html
Unlocking Bootloader: and Installing TWRP, OP post #1:
https://forum.xda-developers.com/mi-9t/how-to/guide-unlock-bootloader-flash-xiaomi-eu-t3952443
- for step 6, installing TWRP, use TWRP I'm giving you below
- instead of 7, execute this command:
>> fastboot oem reboot-recovery
- step 7, don't Format Data (unless you really go to install custom ROM, otherwise you don't need to)
- stop here for installing TWRP
Suggesting you to use this TWRP, 3.4.0.2 from OP post #1:
https://forum.xda-developers.com/mi-9t/how-to/recovery-unofficial-twrp-3-4-0-1-t4135159
- every time you boot to TWRP, you must type in your Android screen unlock pin, TWRP needs to be able to read/write to Data and Internal memory
Learn about using ADB and Fastboot:
https://www.makeuseof.com/tag/use-adb-fastboot-android/
- you can't do things with ADB that require root, but you can read
- similarly, fastboot commands mostly require unlocked Bootloader, but you can read
- google yourself
About installing Magisk, read in these threads:
https://forum.xda-developers.com/mi-9t/how-to/guide-easiest-to-root-twrp-t4000209
https://forum.xda-developers.com/mi-9t/how-to/root-k20-indian-rom-v10-3-6-0-twrp-t3958566
- if you have time, go through the whole threads, you will see variations
- don't worry if talking about MIUI 11, same applies for MIUI 12, you will just need to download your MIUI 12 recovery/zip firmware, will give you link below
- I'll give you below the link for the latest Magisk
MIUI firmwares, download, etc:
https://androidfilebox.com/tips/how-to-install-miui-recovery-rom/
https://androidfilebox.com/tips/how-to-install-miui-fastboot-rom/
https://xiaomiflashtool.com/tutorial/use-xiaomi-flash-tool
https://xiaomifirmwareupdater.com/miui/davinci/
https://codeexercise.com/xiaomi-all-android-mobile-secret-code-list/amp/
Various methods to extract stock Recovery, Boot, Persist and Persistbak partitions:
https://forum.xda-developers.com/mi-9t/how-to/root-k20-indian-rom-v10-3-6-0-twrp-t3958566
Magisk documentation and download:
https://github.com/topjohnwu/Magisk/blob/master/README.MD
- read the docs
- I would suggest you to use Canary (don't worry, Stable is far behind), hence you will only need to download Magisk Manager Canary (then follow XDA guides I gave you above)
Click to expand...
Click to collapse
bro I can`t really thank u enough for the effort
as I got it:
1- Unlock bootloader
2- Install TWRP (the version u provided)
3- Install Magisk (last link u provided) right?
Is there any step of those that is risky or unsafe that may brick the phone ?
PS: On mi unlock application it says all phone data will be erased !
what should I do ?

By unlocking Xiaomi phone you won't lose anything but previous user data stored in phone, unlike ASUS phone losts OTA permanentry.
So make a backup, also I recommend you first picking your secondaly phone, not your daily using one.

Tsunaimy said:
bro I can`t really thank u enough for the effort
as I got it:
1- Unlock bootloader
2- Install TWRP (the version u provided)
3- Install Magisk (last link u provided) right?
Is there any step of those that is risky or unsafe that may brick the phone ?
PS: On mi unlock application it says all phone data will be erased !
what should I do ?
Click to expand...
Click to collapse
As described, TWRP is optional, not needed for Magisk/root but it would be useful to have, so yes, install TWRP
Instructions for unlocking Bootloader say to do Backup. Copy photos and files from Internal memory to PC.
Export contacts to CVS file and also copy to PC.
Backup to Google your Google accounts, contacts, WhatsApp, etc.
Use Settings, Additional settings, Backup, and cooy to PC.
You can also use Settings, MIUI account to backup things
Installations of Magisk and TWRP will not erase data. Generally, they are not risky unless you make really stupid mistake like flashing TWRP img file to System partition instead of to Recovery partition and so - that's why you have instructions how to use Fastboot command to flash TWRP
It's more risky if you go to use e.g. MiFlash (you don't need for TWRP and Magisk), then people can screw up things and need authorized EDL support