Database Users

Easiest Method To Install Any Custom Rom - Universal 7.XX/8.XX

Hey guys,
So recently I tried a few custom roms and noticed that the steps for all roms are slightly diffferent and that confused. Hence decided to try everything available and come to a easiest step by step conclusion:
Steps :
At the time of writing this guide I was on codeworkx universal TWRP running stock OOS 4.7.6 with Magisk 15.2. But the steps would work from any rom to any rom.
1) Flash codeworx universal TWRp from here : https://goo.gl/yXx2sK
2) Boot into twrp and using your pattern/pin decrypt data, yes thats the good part no matter if you are on stable or custom be it android 7.1.1/8.0/8.1 this recovery is able to decrypt all roms.
3) Make a nandroid backup and copy all contents of your internal storage to a pc/ choose the backup method of your choice.
4) Make sure you have at least 50% battery charged.
5) In twrp go to wipe . format data type yes and tick
6) Reboot to recovery
7) Perform a factory reset also wipe internal storage.
8) While in twrp copy the rom and firmware and gapps to your phone
9) Flash first the firmware if needed by the rom, then flash the rom and then gapps and then dm verity zip if needed by the rom. Wipe cache and dalvik. (note if you are flashing a stock rom please flash magisk and then make the first boot otherwise TWRP will be erased)
10) Boot into rom and set it up
11) Flash magisk or supersu if needed.
Heres a step by step video :
Credits :
@Funk Wizard
 @codeworkx
xda developers
lineage os
team twrp
oneplus
Please note : Do this at your own risk. I would not be responsible for any damage.
If I have missed any names please PM me I will ensure i add it.​

Why all this codeworx TWRP hype all of the sudden? Bluspark has never let me down yet. What is the difference between the two?

It's good if you add DM verity to the list as "if needed" because certain custom ROMs require it.

I'll be looking at this thread at some point in the future. Thanks.

Anyone followed the above and have comments to make ?

after flash any rom black screen and blue LED
any help

After first boot /data mount is gone in TWRP

I've got a SM-G950F, and succesfully flashed TWRP on it.
Wiped /data, after that i flashed dm-verity and force encryption disabler, everything was ok until the first boot into the system.
It booted up, and immediately after that i turned off the phone and booted into TWRP, and for some reason it couldnt mount /data again.
The tutorial i have followed:
Thanks for the tutorial to: jesec
Part 1 - HOW-TO FLASH TWRP:
1. In your ROM, go to Settings -> About device. Tap 7 times on Build number to enable Developer options.
2. Go to Settings -> Developer options and enable OEM Unlock option.
3. Download and Install Samsung Mobile Phones Drivers.
- Option 1: Download and Install Smart Switch for PC.
- Option 2: Download and Install standalone driver package.
4. Download and extract Odin (Samsung's Flash Tool) to your computer.
5. Download a .tar image of TWRP.
6. Reboot your device to download mode.
- Hold [VOLUME DOWN] + [BIXBY] + [POWER] for approx. 15 seconds.
- Read the warning carefully.
- If you agree, press [VOLUME UP] to get into Download mode. If you don't agree, STOP.
7. Open Odin and place that TWRP tar file in the [AP] slot.
8. Connect your phone.
9. Hold [VOLUME UP] + [BIXBY] + [POWER] on your phone and then press start on Odin.
10. Wait for the phone to reboot. DO NOT release [VOLUME UP] + [BIXBY] + [POWER] or you may not reboot into TWRP.
Part 2 - HOW-TO INITIALIZE TWRP: (for new phones)
1. If you completed Part 1 successfully, you should be in TWRP now. At this point, you will reach the screen asking you if you want to allow system modifications.
2. Select "Keep /system RO". (Don't swipe right or you may not be able to boot into system if you failed to complete next steps. However, you can swipe right to allow modifications if you are confident that you can complete next steps.)
3. Go to "Wipe" menu of TWRP and you will find "Format Data". Press "Format Data" and type "yes" to continue.
4. Go to "Reboot" menu and Press "Recovery" to reboot TWRP.
5. Download the latest dm-verity and force encryption disabler zip on your computer.
6. Transfer the zip to your phone.
- Option 1: MTP: Connect your phone with computer and just copy the zip to internal storage. (similar to how you transfer files when in system.)
- Option 2: ADB: Connect your phone with computer and run command "adb push /path/to/zip /sdcard/".
- Option 3: External SD: Copy the zip to an external SD and then insert the card to your phone.
7. Go to "Install" menu of TWRP and flash the zip.
TWRP is initialized and fully functional at this stage. Now you can either reboot into system or root, flash custom ROMs via TWRP.
Part 3 - HOW-TO ROOT:
1. Download the flashable zip.
- Option 1: Magisk
- Option 2: SuperSU (untested)
2. Transfer the zip to your phone.
3. Go to "Install" menu of TWRP and flash the zip.
Part 3a - HOW-TO FLASH CUSTOM ROMS:
1. Download the flashable zip.
2. Transfer the zip to your phone.
3. Go to "Install" menu of TWRP and flash the zip.
Simple.
Click to expand...
Click to collapse
Before the 1st boot i even rooted the device, that remained after the first boot, but no /data mount.
After the 5th try, i gave up.
What could be the problem, or is this normal on this phone?

Are you using latest twrp version 3.2.3.2

I'm using 3.2.1.0

kristof889 said:
I'm using 3.2.1.0
Click to expand...
Click to collapse
Use latest twrp 3.2.3.2 should have data mount and quota issues fixed.
You can flash the .Img file through twrp or flash the .img.tar file with Odin.
After flashing reboot straight into twrp and repeat part 2 of the guide you quoted.
I would be interested to know also if in download mode if you have a line in there saying rmm state?
Twrp for s8 exynos
https://dl.twrp.me/dreamlte/

Installed the 3.2.3.2 version, but nothing has changed. after the first boot into system, TWRP says cant mount /data..
I dont have anything like rmm state in download mode.

kristof889 said:
Installed the 3.2.3.2 version, but nothing has changed. after the first boot into system, TWRP says cant mount /data..
I dont have anything like rmm state in download mode.
Click to expand...
Click to collapse
I am assuming you followed the instructions that you quoted in your first post.(mainly part 2) after flashing twrp
Did you format data in twrp - not wipe - this is needed to decrypt your phone.
Rebooted back into twrp.
Did you flash the no verity opt zip (version 6) - this will disable re encryption of your phone when booting back into system.
This should all be done before booting back into system otherwise your phone will re encrypt itself.

I am assuming you followed the instructions that you quoted in your first post.(mainly part 2) after flashing twrp
Did you format data in twrp - not wipe - this is needed to decrypt your phone.
Rebooted back into twrp.
Did you flash the no verity opt zip (version 6) - this will disable re encryption of your phone when booting back into system.
This should all be done before booting back into system otherwise your phone will re encrypt itself.
Click to expand...
Click to collapse
I formatted data, not just wiped it.
I have installed the no verity opt, the latest version.
Even after these, my phone reencrypted itself.

kristof889 said:
I formatted data, not just wiped it.
I have installed the no verity opt, the latest version.
Even after these, my phone reencrypted itself.
Click to expand...
Click to collapse
When do the errors occur ie: during backup,restore,flashing something.
When first starting twrp did you swipe to allow modifications or did you leave it as read only.

You mean, the data mount error?
If yes, immediately after the 2nd boot into TWRP, after the first boot into system. Before i do anything in twrp, i check the log (with the button on the lower right) and it creates a bunch of errors, all in contact with the data partition.
So i can even do a proper backup.
If i flash any zip, upon the next boot into system it says something like verify failed, cannot reboot your phone and it gives a button wich used to restore the phone from recovery, but now i cant even do that bcoz it cant mount /data and thus can restore the phone.

kristof889 said:
You mean, the data mount error?
If yes, immediately after the 2nd boot into TWRP, after the first boot into system. Before i do anything in twrp, i check the log (with the button on the lower right) and it creates a bunch of errors, all in contact with the data partition.
So i can even do a proper backup.
If i flash any zip, upon the next boot into system it says something like verify failed, cannot reboot your phone and it gives a button wich used to restore the phone from recovery, but now i cant even do that bcoz it cant mount /data and thus can restore the phone.
Click to expand...
Click to collapse
Still sounds like you device is still encrypted.
Doing a factory reset with twrp should work to restore your phone or at worst you can re-flash your firmware.
If you can in twrp FORMAT data again and flash the no verity zip use version 6 zip file
https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
I would be curious to know in twrp in the mount menu what options are ticked as well.

After the fresh flash, it was not encrypted because i could access the internal storage, and data was mounted.
Now in TWRP system(read only), cache and dalvik is mounted, and internal storage says 0MB

kristof889 said:
After the fresh flash, it was not encrypted because i could access the internal storage, and data was mounted.
Now in TWRP system(read only), cache and dalvik is mounted, and internal storage says 0MB
Click to expand...
Click to collapse
What Android version are you on?
When you flashed twrp it should have asked you whether or not to ' swipe to allow modifications ' did you swipe to allow or not.
In the mount menu of twrp I have ticked/checked data,cache,SD card the option at the bottom to allow read only I have ticked - this does not stop me from doing backups but does stop me from restoring (data mount error ) so you can leave it unticked.
I would.like to know your steps for twrp installation (not the one you quoted in first post) as I screwed up when I first tried.

I attached the software information bellow.
I have not swiped to allow for system modifications

First steps were the followimg:
Install .tra with odin
Immediately reboot to twrp
No swipe for system modifications
Format data
Flash no dm verity v6
(Flash magisk)
Reboot to system

kristof889 said:
First steps were the followimg:
Install .tra with odin
Immediately reboot to twrp
No swipe for system modifications
Format data
Flash no dm verity v6
(Flash magisk)
Reboot to system
Click to expand...
Click to collapse
Ok basically you have missed a step as far as I can see
(When I did mine I did swipe to allow modifications )
After you have formated data you will need to reboot back into twrp ( use reboot menu in twrp )
Then flash the no verity zip and magisk
If using magisk I would try the latest version 18 it's working ok for me.
Then boot into system to see if everything ok
Then reboot into twrp and see if the data mount issue is fixed.

spawnlives said:
Ok basically you have missed a step as far as I can see
(When I did mine I did swipe to allow modifications )
After you have formated data you will need to reboot back into twrp ( use reboot menu in twrp )
Then flash the no verity zip and magisk
If using magisk I would try the latest version 18 it's working ok for me.
Then boot into system to see if everything ok
Then reboot into twrp and see if the data mount issue is fixed.
Click to expand...
Click to collapse
Thank you for your advice. I will try it in the following days and will post the result.

I fixed this by flashing Renovate ICE's ROM and selecting the TWRP included in the AROMA installer.
Can access storage on TWRP now with no issues.

CoreyOS said:
I fixed this by flashing Renovate ICE's ROM and selecting the TWRP included in the AROMA installer.
Can access storage on TWRP now with no issues.
Click to expand...
Click to collapse
But i want to use the stock rom.
Maybe if i flash Renovate rom and after that again the stock?

kristof889 said:
But i want to use the stock rom.
Maybe if i flash Renovate rom and after that again the stock?
Click to expand...
Click to collapse
Why stock???
It pretty much is stock, just you have full control over the apps preinstalled and you can change colours of various UI elements.
It's just easier to flash a zip than it is to flash via ODIN, then flash TWRP and keep trying over and over to get this result when I know this rom works fine with CTSprofile.
You will only need to flash TWRP once and copy the rom to your phone.
The rest is magic (AROMA)
I haven't really had to mess with anything and have just installed and used the HSBC banking app as if it were an official phone. (ROOTED and custom ROM and Recovery)
One extra step you could take is to use Magisk hide and point it to the app you want to hide root from.

CoreyOS said:
Why stock???
It pretty much is stock, just you have full control over the apps preinstalled and you can change colours of various UI elements.
It's just easier to flash a zip than it is to flash via ODIN, then flash TWRP and keep trying over and over to get this result when I know this rom works fine with CTSprofile.
You will only need to flash TWRP once and copy the rom to your phone.
The rest is magic (AROMA)
I haven't really had to mess with anything and have just installed and used the HSBC banking app as if it were an official phone. (ROOTED and custom ROM and Recovery)
One extra step you could take is to use Magisk hide and point it to the app you want to hide root from.
Click to expand...
Click to collapse
So on that rom i can use s health and all knox based apps like normal?
If yes, i will try it, it looks very nice

[MIUI 10][A2] Update Guide

Hello A2 users
If you convert your Mi A2 to Mi 6X (Android One to MIUI) the updater in MIUI by xiaomi.eu will install Xiaomi ARB (Anit Rollback protection) and you will stuck in MIUI if ARB is installed, for update MIUI without install ARB you need use TWRP and I already delete firmware-update folder for delete ARB from the MIUI update.
1 - Download TWRP.zip and the MIUI update
2 - Reboot your phone in fastboot and connect your phone at your PC
3 - Extract TWRP folder from TWRP.zip
4 - Launch Flash_TWRP.bat (It's will install TWRP and boot in TWRP)
5 - Put the MIUI update in your phone (MTP is already enabled)
6 - Go to wipe > Advanced wipe > select Dalvik's/ART cache and cache and swipe to wipe
7 - Go to Install and select the MIUI update and swipe to confirm to flash
8 - Reboot system and MIUI update is installed
Photo Guide for Install MIUI update in TWRP : https://photos.google.com/album/AF1QipNsuQZv1ZX0sahYwRWpPUEN77o0djhSkLPnKamp
Thanks to @Abdoubody for [MIUI 10][A2] Install Guide

Nice one dude. Can you also put a guide if someone like me from a Custom ROM with TWRP Recovery installed can flash MIUI on Mi A2 device thanks dude and more power!

Any news???

MaxImbrox said:
Any news???
Click to expand...
Click to collapse
Guide is done

Thanks dude!

i did the flashing correctly but now um stuck on boot loop, the device does not start and stuck on MI logo and reboots into TWRP every time.
Update : i have wiped the delvic, cash and data in TWRP to get rid of the boot loop and worked

Mi 9T and my the TWRP/Flash dilemma

Hello everyone
i spent 10hours from my weekend to try to flash a Xiaomi.EU Firmware to my Global Mi 9T. I didn't understand why it's not working, i flashed in the past several xiaomi devices with other firmwares.I am frustrated and i hope so someone can tell me what i do wrong. Here are the steps which i tried:
My Xiaomi Mi 9T is unlocked.My target is to flash Xiaomi.EU 9.8.15 to my device with actually Global 10.3.12
1. i copied the zip file from Xiaomi.EU 9.8.15 to the internal storage.
2. i installed with adb the "Greek" Version from TWRP to my device (*i saw this list https://forum.xda-developers.com/mi-9t/how-to/twrp-versions-xiaomi-mi-9t-t3955946 )
3. I installed the zip file with TWRP. I installed normal without disable something. At the end of the installation i saw something with "unconventional vendor.." or something like this. i am not sure if this is the problem.
4. After the installation i reboot my device. I saw for a short time "Redmy by Xiaomi" and after that the device start automatically in the fastboot bootloop.
I reinstalled my device serveral times with Mi Flash and installed Global 10.3.12 again to try the same steps again. One time i cleaned cache/dalvik but the problem is the same.I am hanging on a fastboot bootloop and have no idea what the problem can be.
I will be so thankful for every piece of idea or information what i do wrong.
Thank for an answer, have a great day !

Hey.
I will write the steps I followed and flashed succesfully.
• Install and boot to TWRP
• Format data
• Reboot TWRP
• Factory reset
• Reboot TWRP
• Install xiaomi.eu ROM (I used an USB OTG) (you can just connect it to your computer and copy the files)
• Reboot system
These are extra steps I did before reboot
• Install Magisk
• Install Dm Verity and Disable ForceEncrypt
• Reboot system
And I used the same TWRP (greek). After a minute, it booted succesfully (rooted and unencrypted).

Dear Schnedi
Do you know anything about mount or unmount partitions at twrp?
When i tried to flash the miglobe rom with the greek twrp It says that the system partition was unmounted.

mauriciocardoso said:
Dear Schnedi
Do you know anything about mount or unmount partitions at twrp?
When i tried to flash the miglobe rom with the greek twrp It says that the system partition was unmounted.
Click to expand...
Click to collapse
is it perhaps encrypted? try flashing dm verity, wipe everything, reboot twrp, and it should let you flash whatever

No, It wasn't encrypted...twrp showed everything! Mystery!!

mauriciocardoso said:
Dear Schnedi
Do you know anything about mount or unmount partitions at twrp?
When i tried to flash the miglobe rom with the greek twrp It says that the system partition was unmounted.
Click to expand...
Click to collapse
Hi.
I have had the same issue installing Magisk. After mount or unmount it (Home -> Mount -> check or uncheck system), I tried to install it again and it worked.

Dear Schnedi
Thank you for your answer. I had to admit that i don't have knowledge enougth to work with twrp! I need a Guide for It!

Schnedi said:
Hey.
I will write the steps I followed and flashed succesfully.
• Install and boot to TWRP
• Format data
• Reboot TWRP
• Factory reset
• Reboot TWRP
• Install xiaomi.eu ROM (I used an USB OTG) (you can just connect it to your computer and copy the files)
• Reboot system
These are extra steps I did before reboot
• Install Magisk
• Install Dm Verity and Disable ForceEncrypt
• Reboot system
And I used the same TWRP (greek). After a minute, it booted succesfully (rooted and unencrypted).
Click to expand...
Click to collapse
Thank you very much for your answer ! I will try this for first without the last steps (Install magisk, dm verity and disable force encrypt)
- Did i understand your correctly: Even i make a factory reset in the TWRP settings, i am enable to copy something to my internal storage with a USB Cable with my PC ?
- I would like install the Xiaomi EU 9.8.15 WEEKY RELASE rom, should that a problem oder will be take this other "special steps" ?
- Did you install magisk & "Dm Verity and Disable ForceEncrypt" after your second step "format data" ?
- Where i can download your same magisk version and this "Dm Verity" ?
Thank you very much to try to helping me !

Lavendel Queen said:
Thank you very much for your answer ! I will try this for first without the last steps (Install magisk, dm verity and disable force encrypt)
- Did i understand your correctly: Even i make a factory reset in the TWRP settings, i am enable to copy something to my internal storage with a USB Cable with my PC ?
- I would like install the Xiaomi EU 9.8.15 WEEKY RELASE rom, should that a problem oder will be take this other "special steps" ?
- Did you install magisk & "Dm Verity and Disable ForceEncrypt" after your second step "format data" ?
- Where i can download your same magisk version and this "Dm Verity" ?
Thank you very much to try to helping me !
Click to expand...
Click to collapse
1- Yes, even after format data, your computer will recognize your device.
2- No, with those steps I installed eu weekly over global stable.
3- No, they are installed after install the ROM
4- Magisk: https://github.com/topjohnwu/magisk_files/blob/master/canary_builds/magisk-release.zip and DM: https://zackptg5.com/android.php#disverfe

Schnedi said:
Hey.
I will write the steps I followed and flashed succesfully.
• Install and boot to TWRP
• Format data
• Reboot TWRP
• Factory reset
• Reboot TWRP
• Install xiaomi.eu ROM (I used an USB OTG) (you can just connect it to your computer and copy the files)
• Reboot system
These are extra steps I did before reboot
• Install Magisk
• Install Dm Verity and Disable ForceEncrypt
• Reboot system
And I used the same TWRP (greek). After a minute, it booted succesfully (rooted and unencrypted).
Click to expand...
Click to collapse
Hi Schnedi
I think i have now a bigger problem....
after get into TWRP, i choose "advance settings" and select anything like delete cache, dalvic, system and more... only i didn't select USB-OTG.
After that i restart the device to flash the Xiaomi.EU Rom... but now i am again in a fastboot bootloop. And Mi Flash Tool can't recognize my device to flash global room. It seems look like de USB Debug Modus is now deactivated in my device.
When i connected my device to windows pc, i see the message that a usb device is connected but the drive is unknow.
Do you have any idea ? Or is that a problem which user called "My device is bricked" -.- ....
Thanks someone for help.

Lavendel Queen said:
Hello everyone
i spent 10hours from my weekend to try to flash a Xiaomi.EU Firmware to my Global Mi 9T. I didn't understand why it's not working, i flashed in the past several xiaomi devices with other firmwares.I am frustrated and i hope so someone can tell me what i do wrong. Here are the steps which i tried:
My Xiaomi Mi 9T is unlocked.My target is to flash Xiaomi.EU 9.8.15 to my device with actually Global 10.3.12
1. i copied the zip file from Xiaomi.EU 9.8.15 to the internal storage.
2. i installed with adb the "Greek" Version from TWRP to my device (*i saw this list https://forum.xda-developers.com/mi-9t/how-to/twrp-versions-xiaomi-mi-9t-t3955946 )
3. I installed the zip file with TWRP. I installed normal without disable something. At the end of the installation i saw something with "unconventional vendor.." or something like this. i am not sure if this is the problem.
4. After the installation i reboot my device. I saw for a short time "Redmy by Xiaomi" and after that the device start automatically in the fastboot bootloop.
I reinstalled my device serveral times with Mi Flash and installed Global 10.3.12 again to try the same steps again. One time i cleaned cache/dalvik but the problem is the same.I am hanging on a fastboot bootloop and have no idea what the problem can be.
I will be so thankful for every piece of idea or information what i do wrong.
Thank for an answer, have a great day !
Click to expand...
Click to collapse
Did you unlock the bootloader?

NOWO1983 said:
Did you unlock the bootloader?
Click to expand...
Click to collapse
you can NOT flash anything without an unlocked bootloader

NOWO1983 said:
Did you unlock the bootloader?
Click to expand...
Click to collapse
Yes the bootlocker is unlocked. Is that possible that i delete something with TWRP which disabled me in Mi Flash Tool to recognize the device ?

Schnedi said:
Hey.
I will write the steps I followed and flashed succesfully.
• Install and boot to TWRP
• Format data
• Reboot TWRP
• Factory reset
• Reboot TWRP
• Install xiaomi.eu ROM (I used an USB OTG) (you can just connect it to your computer and copy the files)
• Reboot system
These are extra steps I did before reboot
• Install Magisk
• Install Dm Verity and Disable ForceEncrypt
• Reboot system
And I used the same TWRP (greek). After a minute, it booted succesfully (rooted and unencrypted).
Click to expand...
Click to collapse
Hi Schnedi, thanks for your guide!
I´m evaluating the option to unlock and root my Mi 9T Pro new device (i´m looking about what I will lose if I go ahead with that, like NO NFC, Netflix, etc), but basically the steps you followed are:
• Unlock the bootloader
• Install and boot to TWRP
• Go inside the WIPE menu and click on "Format data" and type YES
• Reboot into TWRP
• Go inside the WIPE menu and this time swipe to the right to perform a "Factory reset"
• Reboot TWRP
• Go inside the INSTALL menu, click on "select image" and Install xiaomi official Global ROM (I used an USB OTG) (you can just connect it to your computer and copy the files) and without rebooting/restarting yet.....then
• Go back to the INSTALL menu, this time select the Magisk.zip file and do the same with the
• Disable_Dm-Verity_ForceEncrypt_08.18.2019.zip file and then...
• Reboot system?
Am I right?
Just dont want to mess with this.
Thanks in advance!!!
Ale.

Schnedi said:
Hey.
I will write the steps I followed and flashed succesfully.
• Install and boot to TWRP
• Format data
• Reboot TWRP
• Factory reset
• Reboot TWRP
• Install xiaomi.eu ROM (I used an USB OTG) (you can just connect it to your computer and copy the files)
• Reboot system
These are extra steps I did before reboot
• Install Magisk
• Install Dm Verity and Disable ForceEncrypt
• Reboot system
And I used the same TWRP (greek). After a minute, it booted succesfully (rooted and unencrypted).
Click to expand...
Click to collapse
i repaired now my mi 9T with Mi Flash tool and with the Global Version and tried serveral times some of your steps but it didn't work.
- After installed twrp greek, i format cache, dalvic, system and Flash the Xiaomi.EU 9.8.15 rom. Also one time without delete "system". Then i would restart but i get every time a message from TWRP "No OS installed!" , why? I restarted anyway and i see again for a short time "Redmi by Xiaomi" and then again the fastboot loop.
- Then again Mi Flash & Global to repair it.
- I didn't install magisk. Is that necessary ? I know after a restart the TWRP will be disabled but i think with a one time twrp installation and this steps normally the Xiaomi.EU shuld be flashed correctly.
- Or is the problem that the Xiaomi.EU Version 09.8.15 is lower than my installed Global Version 10.3.12 to flash ?
Thanks someone for an idea -_-

FIIIIIIIIINALLLLLLLY !!! Now i have TWRP permanently on my device without fastboot bootloop and with the Xiaomi.EU 9.7.25
1. I flashed before the Mi 9T 10.3.9.0 Global Rom with the Mi Flash Tool "click clear all data" in Mi Flash Tool ----> AND NOT "Clear & unlock" , if you do this, your bootloader will be unlocked again.
2. After you set up your device, copy the Xiaomi.EU 9.7.25 zip file into your internal storage, enable USB debugging and choose by USB connecting ---> File transfer
2. Follow this steps from this site: https://miui.blog/redmi-k20/flash-twrp-root-mi-9t-proven-steps/ ( i choose to install without magisk, but there is also a step with magisk)
3. Be sure you downloaded the Updated information about twrp in the middle of this site with "unofficial build of twrp".
4. After you are into twrp: just click "wipe" and select the "Swipe to Factory Reset ( wipes data,cache and dalvic )
5. After that, not reboot, just install directly the Xiaomi.EU 9.7.25 zip file in twrp.
6. After that, delete cache & dalvik and restart your device.
7. Welcome to your new custom Rom and twrp is also permanently installed.

JonasVFC said:
you can NOT flash anything without an unlocked bootloader
Click to expand...
Click to collapse
Of course, but it can try it and brick the phone

Lavendel Queen said:
FIIIIIIIIINALLLLLLLY !!! Now i have TWRP permanently on my device without fastboot bootloop and with the Xiaomi.EU 9.7.25
1. I flashed before the Mi 9T 10.3.9.0 Global Rom with the Mi Flash Tool "click clear all data" in Mi Flash Tool ----> AND NOT "Clear & unlock" , if you do this, your bootloader will be unlocked again.
2. After you set up your device, copy the Xiaomi.EU 9.7.25 zip file into your internal storage, enable USB debugging and choose by USB connecting ---> File transfer
2. Follow this steps from this site: https://miui.blog/redmi-k20/flash-twrp-root-mi-9t-proven-steps/ ( i choose to install without magisk, but there is also a step with magisk)
3. Be sure you downloaded the Updated information about twrp in the middle of this site with "unofficial build of twrp".
4. After you are into twrp: just click "wipe" and select the "Swipe to Factory Reset ( wipes data,cache and dalvic )
5. After that, not reboot, just install directly the Xiaomi.EU 9.7.25 zip file in twrp.
6. After that, delete cache & dalvik and restart your device.
7. Welcome to your new custom Rom and twrp is also permanently installed.
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I skimmed through this thread so I might have missed something, but as far as I can see the only thing you changed to get it working is installing the russian 4PDA TWRP version instead of the Greek TWRP version?

Schnedi said:
Hey.
I will write the steps I followed and flashed succesfully.
• Install and boot to TWRP
• Format data
• Reboot TWRP
• Factory reset
• Reboot TWRP
• Install xiaomi.eu ROM (I used an USB OTG) (you can just connect it to your computer and copy the files)
• Reboot system
These are extra steps I did before reboot
• Install Magisk
• Install Dm Verity and Disable ForceEncrypt
• Reboot system
And I used the same TWRP (greek). After a minute, it booted succesfully (rooted and unencrypted).
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THIS WAS AMAZING... BUT something strange is happening...
Without flashing Dm Verity and Disable ForceEncrypt zip after the ROM I was not able token boot the Custom ROM, my phone was kipping me on Recovery with all data crypted.
With this zip I can finally boot my ROM (Havoc OS), but all the data on SDCARD partition are still crypted!! I installed a file manager from the play store and what I get are a bunch of strange folders with silly names in the root of the phone... I cannot save a screenshoot because says me that my memory is full or I haven't an SDCARD.
How to solve this?

Can not install any Custom rom_ TWRP/OrangFox tested

I am trying to install some custom rom, below roms are tested and no way to done it:
Xtended, Pixel experience, PE, MSMXtended!!!
all of them is not possible to install via TWRP or OrangFox!
after zip installation in recovery mode, the device will be on loop on fastboot and/or recovery and nothing happening on this type of installation!
I tested to sideload system.img, boot.img etc...
any help will be welcome.

You NEED to "Format Data" (not "Wipe" > "/data", it's the "Format Data" button).
EDIT: You may need to install a good firmware too, just follow installation steps of the custom ROM...

Im having the same issue did the format fix it?

xxjahasotoxx said:
Im having the same issue did the format fix it?
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Guide for install custom ROM
1- boot to recovery
2- select format and type "yes"
3- reboot recovery
4- now wipe data, catch, dalvik catch
5- install ROM and reboot
** Some ROM work only with global vendor. You must first install vendor zip file with twrp (or vendor img with fastboot comment in your pc/linux/mac)
For example: My Mi 9T firmware is (Russian Gobal). I got error when try install Pixel Experience Plus. I install Global Vender with TWRP, then install rom zip file without any problem. (I am on stock miui with locked bootloader now)