Database Develop

Complete setup of Lineage OS

Since in my last post I made a complete mess out of my first time trying to root my K20 and install lineage I wanted to my make a separate post so that I can list all the steps I need to take to correctly setup my phone how I want it.
What I actually want
A rooted device
Lineage OS
Minimal excess files (A clean Install)
Current Steps
Unlock and flash recovery
Backup
Format Data! (It's important if you come from Miui)
Install Q Firmware + vendor
Install LineageOS followed by gapps
Reboot into system and setup device.
Reboot into recovery and flash magisk
Profit???
Feel free to tell me how stupid I am and what I need to add to the list or steps I should take to make this process better.
I also dont know if its possible to get recovery and rom on android 10 versions.
Thanks

Did these steps not work?
Sent from my Redmi K20 Pro using Tapatalk

BJack0 said:
Since in my last post I made a complete mess out of my first time trying to root my K20 and install lineage I wanted to my make a separate post so that I can list all the steps I need to take to correctly setup my phone how I want it.
What I actually want
A rooted device
Lineage OS
Minimal excess files (A clean Install)
Current Steps
Flash a custom recovery
Create a backup
Root???
Install LineageOS
Profit???
Feel free to tell me how stupid I am and what I need to add to the list or steps I should take to make this process better.
Thanks
Click to expand...
Click to collapse
1. Unlock and flash recovery
2. Backup
3. Format Data! (It's important if you come from Miui)
4. Install Q Firmware + vendor
5. Install LineageOS followed by gapps
6. Reboot into system and setup device.
7. Reboot into recovery and flash magisk
You could also check LOS thread: Here and here
Remember:
Chinese firmware: Widevine L3 and NFC support
Indian firmware: Widevine L1 but no NFC support

ishaqtkr said:
Did these steps not work?
Sent from my Redmi K20 Pro using Tapatalk
Click to expand...
Click to collapse
They may work as it but I was just wondering if anyone could go into more detail or if there was a better approach and from what Kollachi said there clearly is a better way that what I said.

Since I'm in stock ROM and haven't ever flashed AOSP ROM in this phone I'll just back off lol
Sent from my Redmi K20 Pro using Tapatalk

Kollachi said:
1. Unlock and flash recovery
2. Backup
3. Format Data! (It's important if you come from Miui)
4. Install Q Firmware + vendor
5. Install LineageOS followed by gapps
6. Reboot into system and setup device.
7. Reboot into recovery and flash magisk
Click to expand...
Click to collapse
I like the details steps but I have a few questions.
(Unlock and flash recovery) From what I can tell there are two recovery's Orange fox and TWRP
(Format data) Just format data or are there other sections I should format/wipe
(Install Q Firmware + Vendor) I have no idea what Q firmware is or what vendor you are referring to
(Install Lineage + gapps) Is there a specific version from the Mi 9T pro since the official site doesn't list it

Any of the two recoveries will work. Q firmware means Android Q. Wile data/cache dalvik that's it. Regarding firmware, there's a clear topic of Lineage OS in K20 Pro forum which is still in unofficially state
Sent from my Redmi K20 Pro using Tapatalk

BJack0 said:
I like the details steps but I have a few questions.
(Unlock and flash recovery) From what I can tell there are two recovery's Orange fox and TWRP
(Format data) Just format data or are there other sections I should format/wipe
(Install Q Firmware + Vendor) I have no idea what Q firmware is or what vendor you are referring to
(Install Lineage + gapps) Is there a specific version from the Mi 9T pro since the official site doesn't list it
Click to expand...
Click to collapse
1. You can take what you want. Orangefox is based on TWRP.
2. Format data is needed if you come from miui. If you did it you are good to go. But it wouldn't be false to wipe system, dalvic, cache
3.https://downloads.akhilnarang.me/MIUI/raphael/ --> Take 10.4.6.0 or 10.4.8.0 (Android 10 = Q)
4. No there is no specific version.

BJack0 said:
I like the details steps but I have a few questions.
(Unlock and flash recovery) From what I can tell there are two recovery's Orange fox and TWRP
(Format data) Just format data or are there other sections I should format/wipe
(Install Q Firmware + Vendor) I have no idea what Q firmware is or what vendor you are referring to
(Install Lineage + gapps) Is there a specific version from the Mi 9T pro since the official site doesn't list it
Click to expand...
Click to collapse
I would recommend the latest TWRP from here
https://forum.xda-developers.com/k2...icial-twrp-xiaomi-redmi-t3944363/post79823568
The dev is an official TWRP dev, so this version, or something very close to this, is likely to become official in the future.
OrangeFox is a heavily modified TWRP and has a lot of added functionality specific to MIUI. If you wanted to stay on stock MIUI, but debloat and have root, etc. then OF would be the better choice, as it has functionality that lets it play nicely with MIUI (it can remain installed when OTA updates are installed)
As someone new to flashing on Android, I would suggest downloading a 10.4.x fastboot ROM from the site I pointed to in your other post, then follow the same procedure to flash the ROM.
Make your choice based on Kollachi's info and what's important to you (HD Netflix - choose Indian, or a working NFC - choose Chinese)
However you MUST change the flash option to 'clean all'.
At this point you've got a nice squeaky clean starting point.
Boot into the ROM at least once, though it's not necessary to go through all the setup.
After that follow Kollachi's steps but you can now ignore the step to flash vendor and firmware as it's all part of the fastboot ROM already flashed.
Wipe cache and dalvik, format data.
There is no official LOS for this phone yet. Hopefully it will go official in the future.
For now just get the current Android 10 based LOS from here.
https://forum.xda-developers.com/k20-pro/development/rom-lineageos-17-0-t3976469/post80406191

Robbo.5000 said:
I would recommend the latest TWRP from here
The dev is an official TWRP dev, so this version, or something very close to this, is likely to become official in the future.
OrangeFox is a heavily modified TWRP and has a lot of added functionality specific to MIUI. If you wanted to stay on stock MIUI, but debloat and have root, etc. then OF would be the better choice, as it has functionality that lets it play nicely with MIUI (it can remain installed when OTA updates are installed)
As someone new to flashing on Android, I would suggest downloading a 10.4.x fastboot ROM from the site I pointed to in your other post, then follow the same procedure to flash the ROM.
Make your choice based on Kollachi's info and what's important to you (HD Netflix - choose Indian, or a working NFC - choose Chinese)
However you MUST change the flash option to 'clean all'.
At this point you've got a nice squeaky clean starting point.
Boot into the ROM at least once, though it's not necessary to go through all the setup.
After that follow Kollachi's steps but you can now ignore the step to flash vendor and firmware as it's all part of the fastboot ROM already flashed.
Wipe cache and dalvik, format data.
There is no official LOS for this phone yet. Hopefully it will go official in the future.
For now just get the current Android 10 based LOS from here.
Click to expand...
Click to collapse
When ever I think I have the process memories and I follow the steps on my screen I still somehow **** this up and I cant understand how.
My current steps include
Flash the fastboot with the ROM that you linked me in my first post
Flash the recovery with TWRP (Every time I have then tried going back into TWRP is failed to work and prompted the original MIUI recovery)
Install the TWRP zip from custom recovery to try and fix the issue above (Only had this work once on orangefox and then never had success again)
So now I try to just flash the recovery and boot to it using CMD and it works fine
Move the lineageOS files from my PC to the phone SDCard
If I wipe data and the caches as suggested then the lineageOS zip is now go and I am back to flashing the fastboot ROM to restart the process
I know this might seem like im either stupid or just not getting it but could you or anyone else please make a bullet pointed list with links to what I have to download in order to actually achieve this since I cant do anything correctly even when trying to follow the steps.
(Im going to sleep since I have been trying to do this for hours now and I will check reply's in the morning.
Thanks for the help so far EVERYONE

BJack0 said:
When ever I think I have the process memories and I follow the steps on my screen I still somehow **** this up and I cant understand how.
My current steps include
Flash the fastboot with the ROM that you linked me in my first post
Flash the recovery with TWRP (Every time I have then tried going back into TWRP is failed to work and prompted the original MIUI recovery)
Install the TWRP zip from custom recovery to try and fix the issue above (Only had this work once on orangefox and then never had success again)
So now I try to just flash the recovery and boot to it using CMD and it works fine
Move the lineageOS files from my PC to the phone SDCard
If I wipe data and the caches as suggested then the lineageOS zip is now go and I am back to flashing the fastboot ROM to restart the process
I know this might seem like im either stupid or just not getting it but could you or anyone else please make a bullet pointed list with links to what I have to download in order to actually achieve this since I cant do anything correctly even when trying to follow the steps.
(Im going to sleep since I have been trying to do this for hours now and I will check reply's in the morning.
Thanks for the help so far EVERYONE
Click to expand...
Click to collapse
I just told you what I have done and I'm running it so far without issues.
Robbo just said you should flash the whole Chinese or indian rom but I don't like his steps because:
1. File is much bigger
2. MiFlash is just meh
3. If you forgot to change the flash process you are bricked if you don't take the correct firmware for your phone.
Default option in Miflash is set to "Clean all and lock". Every time you use it, you will need to change it into "clean all" or something other.

Kollachi said:
I just told you what I have done and I'm running it so far without issues.
Robbo just said you should flash the whole Chinese or indian rom but I don't like his steps because:
1. File is much bigger
2. MiFlash is just meh
3. If you forgot to change the flash process you are bricked if you don't take the correct firmware for your phone.
Default option in Miflash is set to "Clean all and lock". Every time you use it, you will need to change it into "clean all" or something other.
Click to expand...
Click to collapse
Yes flashing the whole fastboot ROM does add the risk, if you forget to change the flash option, but you are guaranteed a clean slate and so less likely to have any niggling issues that nobody else has. I would bet large sums of money that many of the issues you see on here, where only one person has some problem and everyone else is fine, would be solved by fastboot flashing MIUI before installing the ROM of choice.
If you know what you're doing and know when you'll be OK with what you've got and know when it's best to start clean, then going with the vendor and firmware is easier.
But if your unsure and new to flashing on Android phones, I will always suggest go with the overkill and know you've got the clean slate to start with.
---------- Post added at 10:56 AM ---------- Previous post was at 10:36 AM ----------
BJack0 said:
When ever I think I have the process memories and I follow the steps on my screen I still somehow **** this up and I cant understand how.
My current steps include
Flash the fastboot with the ROM that you linked me in my first post
Flash the recovery with TWRP (Every time I have then tried going back into TWRP is failed to work and prompted the original MIUI recovery)
Install the TWRP zip from custom recovery to try and fix the issue above (Only had this work once on orangefox and then never had success again)
So now I try to just flash the recovery and boot to it using CMD and it works fine
Move the lineageOS files from my PC to the phone SDCard
If I wipe data and the caches as suggested then the lineageOS zip is now go and I am back to flashing the fastboot ROM to restart the process
I know this might seem like im either stupid or just not getting it but could you or anyone else please make a bullet pointed list with links to what I have to download in order to actually achieve this since I cant do anything correctly even when trying to follow the steps.
(Im going to sleep since I have been trying to do this for hours now and I will check reply's in the morning.
Thanks for the help so far EVERYONE
Click to expand...
Click to collapse
It's sounds like the main issue is stock recovery is being restored. This is something that MIUI will do when it boots up.
When you first install TWRP you cannot boot into MIUI before booting to TWRP as you instantly lose TWRP. So you need to boot into TWRP first in order to do something to prevent it being overwritten.
Options are
1
Code:
fastboot boot TWRP.img
2 Use the button combo whilst still in fastboot - power and vol+, hold both until the phone vibrates and the initial logo appears.
Now to keep TWRP you need to either flash a custom ROM, flash Magisk or flash the dm-verity script.
In your case you want to flash LOS, so now you've booted into TWRP go ahead and continue with the steps given.
Also, wait until after you've formatted data before copying everything over. You can access the phone as an MTP device when in TWRP, so you'll be able to connect it to a PC and drag everything across, or you can stick everything on a USB OTG pen, if you have one, TWRP can read data from them too.

It's sounds like the main issue is stock recovery is being restored. This is something that MIUI will do when it boots up.
When you first install TWRP you cannot boot into MIUI before booting to TWRP as you instantly lose TWRP. So you need to boot into TWRP first in order to do something to prevent it being overwritten.
Options are
1
Code:
fastboot boot TWRP.img
2 Use the button combo whilst still in fastboot - power and vol+, hold both until the phone vibrates and the initial logo appears.
Now to keep TWRP you need to either flash a custom ROM, flash Magisk or flash the dm-verity script.
In your case you want to flash LOS, so now you've booted into TWRP go ahead and continue with the steps given.
Also, wait until after you've formatted data before copying everything over. You can access the phone as an MTP device when in TWRP, so you'll be able to connect it to a PC and drag everything across, or you can stick everything on a USB OTG pen, if you have one, TWRP can read data from them too.
Click to expand...
Click to collapse
The exact problem I have is that I cant transfer any files to the device after formatting the data. I follow the steps correctly and I get into TWRP successfully and then everyone has told me to format the data then install lineage but I cant install the OS if formatting the data removes it.
Get device into fastboot
Flash revocery with TWRP
power the device off
hold volume up and power
boot into custom recovery
format data
move lineageOS onto my device
install lineageOS
reboot
done.
This is the list of exact actions I am doing with no results is there something I am missing or something that is in the wrong order.

BJack0 said:
The exact problem I have is that I cant transfer any files to the device after formatting the data. I follow the steps correctly and I get into TWRP successfully and then everyone has told me to format the data then install lineage but I cant install the OS if formatting the data removes it.
Get device into fastboot
Flash revocery with TWRP
power the device off
hold volume up and power
boot into custom recovery
format data
move lineageOS onto my device
install lineageOS
reboot
done.
This is the list of exact actions I am doing with no results is there something I am missing or something that is in the wrong order.
Click to expand...
Click to collapse
You connect your phone to computer while in recovery to transfer the OS zip
Sent from my Redmi K20 Pro using Tapatalk

BJack0 said:
The exact problem I have is that I cant transfer any files to the device after formatting the data. I follow the steps correctly and I get into TWRP successfully and then everyone has told me to format the data then install lineage but I cant install the OS if formatting the data removes it.
Get device into fastboot
Flash revocery with TWRP
power the device off
hold volume up and power
boot into custom recovery
format data
move lineageOS onto my device
install lineageOS
reboot
done.
This is the list of exact actions I am doing with no results is there something I am missing or something that is in the wrong order.
Click to expand...
Click to collapse
After format data, reboot your device into recovery again and transfer LOS, gapps and all files you need.
Format data kills the storage.

I always used to reboot from TWRP back in to TWRP after formatting data, but I've recently seen someone saying that they just unmount data then remount it again. I haven't tried it myself but it certainly makes sense and would be quicker too.

Robbo.5000 said:
I always used to reboot from TWRP back in to TWRP after formatting data, but I've recently seen someone saying that they just unmount data then remount it again. I haven't tried it myself but it certainly makes sense and would be quicker too.
Click to expand...
Click to collapse
Yes I did that and it worked, unmounting and remounting helps detect the storage in PC
Sent from my Redmi K20 Pro using Tapatalk

Robbo.5000 said:
I always used to reboot from TWRP back in to TWRP after formatting data, but I've recently seen someone saying that they just unmount data then remount it again. I haven't tried it myself but it certainly makes sense and would be quicker too.
Click to expand...
Click to collapse
Yes that works. Tried it myself but prefer to reboot into recovery again.:laugh:

Finally Successful
After a long post I have finally finished the process successfully. This was pretty educational for me since I didn't understand any of this at the start I would like to thank everyone who reply's and all the information that you have provided.

need help guys, i stuck in bootloop.
- fastboot rom global china V10.3.17.0 PFKCNXM
- fastboot twrp 3.3.1
- format data
- flash vendor image cn 10.4.6.0
- wipe cache/dalvik
- flash lineage os
- flash gapps nano
- reboot
- stuck bootloop

Boot loop after trying to downgrade EU stable 11.0.2 to EU stable 10.13.17

TL;DR - Tried to downgrade Android 10 Xiaomi EU to Android 9 Xiaomi EU, tried wiping the device (besides storage). I can get into TWRP and Fastboot, just won't boot OS.
Detailed:
I was running the latest Android 10 Xiaomi EU Stable Rom MIUI 11 (11.0.2) and wanted to downgrade because I had a few issues.
I reinstalled the last stable Android 10 Xiaomi EU Stable Rom for MIUI 10 (10.3.17) and it ran fine. I then realized that I wanted to be back on Android 9....
I went and tried to install Android 9 Xiaomi EU Stable Rom for MIUI 10 (10.3.16) and then ran into boot looping.
So then I got into TWRP and erased all data and then tried to copy over the old update file and realized I can't copy over anything even with MTP Enabled.
All the folders in the sdcard are random letters and numbers..
So now I can't send any files over and im stuck wondering how to fix this problem and then go over to Pixel Experience.
Send help! Please!

You messed up with encryptions... Just flash Chinese fastboot rom before pixel experience... and, as always, don't forget: DO NOT lock your bootloader ..

thiagodark said:
You messed up with encryptions... Just flash Chinese fastboot rom before pixel experience... and, as always, don't forget: DO NOT lock your bootloader ..
Click to expand...
Click to collapse
And I would do that by downloading which version of fastboot? Any stable one that I want to run?
Also would it be through fastboot using Mi Flash Tool or something else?
Then the pixel experience would be installed just through TWRP?
Sorry, I just don't wanna mess up.

originalwill23 said:
And I would do that by downloading which version of fastboot? Any stable one that I want to run?
Also would it be through fastboot using Mi Flash Tool or something else?
Then the pixel experience would be installed just through TWRP?
Sorry, I just don't wanna mess up.
Click to expand...
Click to collapse
As you want to flash pixel experience, you need to flash chinese fastboot rom, because pixel experience is based on Chinese firmware. So, by flashing Chinese you will be half way. Pick last stable pie version.. I believe is 10.3.16, don't remember...
Yes. You should use miflash tool, just don't forget: you need to select "clean all" and not "clean all and lock".
Boot into miui system once.
After that just flash twrp through normal fastboot command, as you already did in the past. Then flash PE in twrp...
Remember to boot in twrp just after flash it, if you boot into device it will be replaced by stock one...

thiagodark said:
As you want to flash pixel experience, you need to flash chinese fastboot rom, because pixel experience is based on Chinese firmware. So, by flashing Chinese you will be half way. Pick last stable pie version.. I believe is 10.3.16, don't remember...
Yes. You should use miflash tool, just don't forget: you need to select "clean all" and not "clean all and lock".
Boot into miui system once.
After that just flash twrp through normal fastboot command, as you already did in the past. Then flash PE in twrp...
Remember to boot in twrp just after flash it, if you boot into device it will be replaced by stock one...
Click to expand...
Click to collapse
@originalwill23
After booting into TWRP and before flashing PE, wipe cache and dalvik, then format data. Either reboot into TWRP, or unmount and mount data, then carry on with the PE flashing.

Robbo.5000 said:
@originalwill23
After booting into TWRP and before flashing PE, wipe cache and dalvik, then format data. Either reboot into TWRP, or unmount and mount data, then carry on with the PE flashing.
Click to expand...
Click to collapse
@Robbo.5000
That sounds confusing..
So after flashing the chinese fastboot and starting the phone up once to confirm its working, i boot into twrp and wipe cache+dalvik, then format all data, then restart into twrp and flash pe?
Doing that is just making sure its a clean flash and not a dirty one?

originalwill23 said:
@Robbo.5000
That sounds confusing..
So after flashing the chinese fastboot and starting the phone up once to confirm its working, i boot into twrp and wipe cache+dalvik, then format all data, then restart into twrp and flash pe?
Click to expand...
Click to collapse
You boot into MIUI once to let it finalise the installation.
Then install TWRP and immediately boot into TWRP.
When changing ROMs you should clean flash, which normally means wiping cache, dalvik and data before installing the new ROM.
In this case it's best to format data instead, otherwise you may get problems with encryption, similar to what your seeing now.
After formatting data, TWRP sometimes has a problem seeing the data partition properly, to fix this you either reboot into TWRP or go to the mount menu and unmount data, then mount it again.
After this you copy the PE ROM onto the phone and flash it.

Robbo.5000 said:
You boot into MIUI once to let it finalise the installation.
Then install TWRP and immediately boot into TWRP.
When changing ROMs you should clean flash, which normally means wiping cache, dalvik and data before installing the new ROM.
In this case it's best to format data instead, otherwise you may get problems with encryption, similar to what your seeing now.
After formatting data, TWRP sometimes has a problem seeing the data partition properly, to fix this you either reboot into TWRP or go to the mount menu and unmount data, then mount it again.
After this you copy the PE ROM onto the phone and flash it.
Click to expand...
Click to collapse
I successfully got everything up and running in PE and im loving it. Thanks!!

Bring light into the darkness of encryption

Hi togehter,
I had some problems with flashing new custom roms and ended up in a bootloop with not being able to boot to recovery. This could be solved by flashing the stock image with the xiaomi flash tool.
Before I will fu up again I would like to bring some light into the darkness.
When coming from Stock Rom:
1. Unlock Bootloader -> done successfully
2. Flashed TWRP Recovery -> done successfully but storage (data) was encrypted
3. Flashed Magisk via Recovery -> done successfully (storage still encrypted)
from here I was happy using the Stock Rom with Root.
Now I started messing things up:
Because there are a few things that bother me about the stock rom i wanted to use lineageOS/Pixel Experience. So I proceeded as following:
1. Backup my data (still have to enter key when starting twrp to decrypt the storage) -> done successfully
2. Flash LineageOS -> resulted in bootloop to TWRP
When entering twrp there was no query about the key and data where encrypted. Also the Backup was not accessible .
3. I used all in one tool to erase storage and decrypt data. -> successfully... Now i was able to place data on the internal storage again and start flashing a rom
4. Flashing LineageOS -> done successfully and able to boot into rom
Back to TWRP data was encrypted and I had to enter key.
5. Flashing remove force encryption script via twrp. -> done but now i was facing boot to black screen. TWRP was not working anymore.
Only way to get it work again, was flashing stock image.
Why is the data system always encrypted. This is rly annoying and backups don't work, because i can not encrypt them. Also, I can not put any files on the memory because it is encrypted.
I would rly like to try a custom rom, but I would also like to be able to go back to a backup. What have i done wrong?

You have to flash no dm verify right after formatting data & flashing rom. Don't let it boot.
I would recommend using the stock firmware. Los/AOSP is rubbish for our device, it's too unstable, lacking features and has worse gestures.

SeppGoPro said:
Hi togehter,
.... What have i done wrong?
Click to expand...
Click to collapse
You need to format data (not just wipe data) in TWRP. Some people suggest before flashing a ROM and some say after, but I don't think it makes a great deal of difference either way.
Make sure you either flash the appropriate firmware and vendor recommended, or the fastboot ROM of that version.
Then in TWRP wipe cache and dalvik, then format data.
Reboot into TWRP, or unmount and mount the data partition in TWRP so it correctly reads the data partition.
Copy across the ROM (and GApps if needed)
Them flash.
Boot into the ROM and you should be good.
After initial setup, if you want root, boot into TWRP and flash Magisk.
From here, if you've set a pin on the ROM, you'll be encrypted, but everything should still work normally. You should be able to access everything normally in TWRP and also perform backups. You should be able to got data across from/to a PC normally.
Turbine1991 said:
You have to flash no dm verify right after formatting data & flashing rom. Don't let it boot.
I would recommend using the stock firmware. Los/AOSP is rubbish for our device, it's too unstable, lacking features and has worse gestures.
Click to expand...
Click to collapse
Not true in many ways.
There is need to flash no dm verity. It's one way of solving the issue, but it's not the only way. You should only do this if you know what it's for and if you know you want this.
AOSP ROMs are not unstable. I've been using them on mine for over 4 months. None are perfect and they have a few minor issues/bugs, but they are far from being considered unstable. I've never had shutdowns, reboots or FC'S.

Thanks for the replies.
Robbo.5000 said:
Make sure you either flash the appropriate firmware and vendor recommended, or the fastboot ROM of that version.
Click to expand...
Click to collapse
So for example with LineageOS 17 I can use the global vendor and firmware, but sometimes in the thread it is recommended to use chinese vendor and firmware. In this case I should flash another vendor and firmware then the global one.
What do you mean with a fastboot rom. How can I identify one of them?
Is the MiuiMix Rom a fastboot rom. This one changed my vendor and firmware. After flashing this rom, my bootlogo changed to redmi... Am i right with this suggestion?

SeppGoPro said:
Thanks for the replies.
So for example with LineageOS 17 I can use the global vendor and firmware, but sometimes in the thread it is recommended to use chinese vendor and firmware. In this case I should flash another vendor and firmware then the global one.
What do you mean with a fastboot rom. How can I identify one of them?
Is the MiuiMix Rom a fastboot rom. This one changed my vendor and firmware. After flashing this rom, my bootlogo changed to redmi... Am i right with this suggestion?
Click to expand...
Click to collapse
Fastboot ROMs are official ROMs that are flashed through the Mi Flash Tool
, with the phone booted into fastboot mode and connected to the PC. They contains almost all partitions, including vendor and all firmware. They will be a .tgz file. They are mainly used as an almost failsafe way to recover the phone, should you mess things up. Flashing them will restore the phone to factory, so will lose TWRP, but you're guaranteed a clean starting point.
If, for example, you want to install Havoc 3, it is recommended to flash it on top of either China or India 10.4 vendor and firmware. So if you're phone is currently on global firmware, you would then need to flash, say, Chinese firmware and vendor flies, before flashing Havoc.
If you have been previously flashing other mods, such as 75Hz, screen refresh rate, for example, then you might choose to flash the official Chinese fastboot ROM, instead of just the firmware and vendor, to ensure that you've cleaned the phone of any mods, etc. In most cases you will be fine flashing firmware and vendor, though.
Miuimix is a custom ROM, which is based on the official China MIUI ROM. Because it's based on the China ROM this is why the logo changed to Redmi.

Robbo.5000 said:
Miuimix is a custom ROM, which is based on the official China MIUI ROM. Because it's based on the China ROM this is why the logo changed to Redmi.
Click to expand...
Click to collapse
So in this case, i can just flash this rom and there is no need of flashing a diffrent vendor or firmware.
So final question: I'm happy with the stock rom plus root. I would like to try a custom rom but I'm not willing to go through the whole installtion procedure again. Is there a way of making a backup and keeping it?
When I backup the stock rom right now, the backup will ne encrypted again...When I formate the data, all my data will be gone again ?

custom rom flash problem

Am currently on MIUI 11.0.3 flashed with miflash
when i flash a custom rom, my phone gets rebooted to recovery
before flash wipe cache and dakvik and data and system...(the problem persists without and with wipes)
i have tried Pixel experience - Havoc -Evolution X....
also tried flashing global vendor before flash rom, but it also doesn't work.
Recovery is TWRP latest version, have also used orange fox recovery
Bootloader unlocking
Any solutions for this problem?
thanks

Masoud.Ser said:
Am currently on MIUI 11.0.3 flashed with miflash
when i flash a custom rom, my phone gets rebooted to recovery
before flash wipe cache and dakvik and data and system...(the problem persists without and with wipes)
i have tried Pixel experience - Havoc -Evolution X....
also tried flashing global vendor before flash rom, but it also doesn't work.
Recovery is TWRP latest version, have also used orange fox recovery
Bootloader unlocking
Any solutions for this problem?
thanks
Click to expand...
Click to collapse
Format the data partition in TWRP. You need to do this when installing over MIUI.

Robbo.5000 said:
Format the data partition in TWRP. You need to do this when installing over MIUI.
Click to expand...
Click to collapse
thanks
but after Format the data partition and Wipe cache and dakvik and mount and unmount the data partition and reboot and flash rom
and reboot to system my phone gets rebooted to recovery again

Masoud.Ser said:
thanks
but after Format the data partition and Wipe cache and dakvik and mount and unmount the data partition and reboot and flash rom
and reboot to system my phone gets rebooted to recovery again
Click to expand...
Click to collapse
Are you booting into MIUI at least once after flashing it, before flashing anything else?
I've stopped doing the mount/unmount. I now always reboot back into TWRP after formatting data, seems more reliable.
In TWRP do a factory reset, then format data, then reboot back into TWRP.
After this install the ROM you want

Robbo.5000 said:
Are you booting into MIUI at least once after flashing it, before flashing anything else?
I've stopped doing the mount/unmount. I now always reboot back into TWRP after formatting data, seems more reliable.
In TWRP do a factory reset, then format data, then reboot back into TWRP.
After this install the ROM you want
Click to expand...
Click to collapse
yes booting into MIUI at least once after flashing it
after wipe and flash rom and reboot
phone into twrp again and also internal storage format auto and am cant use storage and must again flash miui rom with miflash for problem storage

Masoud.Ser said:
yes booting into MIUI at least once after flashing it
after wipe and flash rom and reboot
phone into twrp again and also internal storage format auto and am cant use storage and must again flash miui rom with miflash for problem storage
Click to expand...
Click to collapse
Can you provide all the steps you are doing. I can't see any reason why it's not working.

Robbo.5000 said:
Can you provide all the steps you are doing. I can't see any reason why it's not working.
Click to expand...
Click to collapse
1.flash miui 11.0.3 with miflash and boot...no set setup...
2. flash twrp 3 with fastboot and reboot to twrp
3.wipe cache and dakvik
4. wipe data
5.reboot to twrp
6.flash custom rom without error
but after reboot phone again into twrp and no load rom also cant use storage and write and copy file on storage ...
i have tried Pixel experience - Havoc -Evolution X....

Masoud.Ser said:
1.flash miui 11.0.3 with miflash and boot...no set setup...
2. flash twrp 3 with fastboot and reboot to twrp
3.wipe cache and dakvik
4. wipe data
5.reboot to twrp
6.flash custom rom without error
but after reboot phone again into twrp and no load rom also cant use storage and write and copy file on storage ...
i have tried Pixel experience - Havoc -Evolution X....
Click to expand...
Click to collapse
Step 4 needs to be format data, not wipe data, you have to type 'yes' to confirm when you do it.

Robbo.5000 said:
Step 4 needs to be format data, not wipe data, you have to type 'yes' to confirm when you do it.
Click to expand...
Click to collapse
thanks
work good.
I'm new entered the Xiaomi phone discussion
a few short questions
....................
1-Is it necessary to format data for flash in each time?
2-even need to flash miui with miflah and boot before flash custom rom in each time?
and do need to flash vendor global my phone before flash custom roms?

Masoud.Ser said:
thanks
work good.
I'm new entered the Xiaomi phone discussion
a few short questions
....................
1-Is it necessary to format data for flash in each time?
2-even need to flash miui with miflah and boot before flash custom rom in each time?
and do need to flash vendor global my phone before flash custom roms?
Click to expand...
Click to collapse
1 No
2 No
If you want to flash something else, remove lockscreen security first before flashing. This should allow you to dirty flash an update, or clean flash a new ROM, without problems. You only need to format data when flashing over MIUI.
If you get into problems and you cannot successfully get a custom ROM working, this is when you need to flash MIUI first.
You only need to flash vendor/firmware files when the custom ROM recommends/requires a version that is different to what you currently have.

Masoud.Ser said:
Am currently on MIUI 11.0.3 flashed with miflash
when i flash a custom rom, my phone gets rebooted to recovery
before flash wipe cache and dakvik and data and system...(the problem persists without and with wipes)
i have tried Pixel experience - Havoc -Evolution X....
also tried flashing global vendor before flash rom, but it also doesn't work.
Recovery is TWRP latest version, have also used orange fox recovery
Bootloader unlocking
Any solutions for this problem?
thanks[/QUOTE
Which model is yours indian version or Chinese ?
Click to expand...
Click to collapse

vicky#kick said:
Masoud.Ser said:
Am currently on MIUI 11.0.3 flashed with miflash
when i flash a custom rom, my phone gets rebooted to recovery
before flash wipe cache and dakvik and data and system...(the problem persists without and with wipes)
i have tried Pixel experience - Havoc -Evolution X....
also tried flashing global vendor before flash rom, but it also doesn't work.
Recovery is TWRP latest version, have also used orange fox recovery
Bootloader unlocking
Any solutions for this problem?
thanks[/QUOTE
Which model is yours indian version or Chinese ?
Click to expand...
Click to collapse
global
Click to expand...
Click to collapse

I am on k20 pro and trying to flash mortal os rc 14 but after flashing it properly it always stucks in bootloop...
1. Clean all the data partitions except internal storage
2. Flashing latest vendor for MIUI
3. Flashing mortal os rc 14 zip file
4. Flashing DFE
5. Rebooting and get stucks in bootloop
Help me what can i do..

aniketkumarak said:
I am on k20 pro and trying to flash mortal os rc 14 but after flashing it properly it always stucks in bootloop...
1. Clean all the data partitions except internal storage
2. Flashing latest vendor for MIUI
3. Flashing mortal os rc 14 zip file
4. Flashing DFE
5. Rebooting and get stucks in bootloop
Help me what can i do..
Click to expand...
Click to collapse
The emoji's screwed up my reply. Try again.
1. Next time create a new post, don't resurrect a vaguely similar old post.
2. Restore MIUI with a fastboot ROM and try again. Use my guide here to help you install the ROM of choice.
https://forum.xda-developers.com/k20-pro/how-to/simple-guide-flipkart-owners-t4151007/post83329343
If you're not sure what you're doing, follow the guide exactly, do not freestyle.

1.Install any rom
2. In recovery factory reset or change data partition to ext2 and then again back to ext4
Reboot
It will boot.

[email protected] said:
2. ...change data partition to ext2 and then again back to ext4...
Click to expand...
Click to collapse
WT........
Seriously?

Hi, I am new to K20 Pro, I have not unlocked my phone yet, I was just going through the forum, to understand all the things and how flashing is done in K20 Pro, I have a question about flashing the vendor, some ROM require it & some don’t, can anyone explain? And how do I choose the correct vendor for my device?? Where can I download the right vendor??
Thanks!

stanlin salu said:
Hi, I am new to K20 Pro, I have not unlocked my phone yet, I was just going through the forum, to understand all the things and how flashing is done in K20 Pro, I have a question about flashing the vendor, some ROM require it & some don’t, can anyone explain? And how do I choose the correct vendor for my device?? Where can I download the right vendor??
Thanks!
Click to expand...
Click to collapse
When flashing you will actually need vendor and firmware files together.
These are taken from the official MIUI fastboot ROMs. You can find them repackaged in a single flashable zip file from here.
https://downloads.akhilnarang.dev/MIUI/raphael/
Flashing one of these files in TWRP is the easiest way to go.
You can also find then repackaged as separate zip files from here
https://xiaomifirmwareupdater.com/
This site has a much greater archive, so is good if you need an older version that you can't find in the other site. You will need to make sure you download vendor and firmware files for the same version.
You should always stick to the version that is for the region of your phone. e.g. Indian vendor and firmware for an Indian K20 Pro, etc.
Some ROMs use an OSS vendor and so this is included as part of the ROM install. In which case there is no need to flash the MIUI vendor.
When a new version of MIUI is released, vendor and firmware files might get updated, to fix a bug or to add extra functionality. In this case some custom ROM devs will include them so that they get the bug fixes or extra functionality in their ROM too. When this happens they will update the minimum vendor and firmware version requirements for their custom ROM - the version will be the actual MIUI version in which the vendor and firmware files were updated.
Where a ROM doesn't specify vendor and firmware and doesn't have an OSS vendor, then it normally implies that any version will work that is from MIUI based on the same Android version. In this case use the most recent version, which you will already have if you've kept up to date with MIUI updates.
When installing a new ROM, you will only need to flash vendor and firmware files if your current version is less than the required version of the new ROM.

Robbo.5000 said:
When flashing you will actually need vendor and firmware files together.
These are taken from the official MIUI fastboot ROMs. You can find them repackaged in a single flashable zip file from here.
https://downloads.akhilnarang.dev/MIUI/raphael/
Flashing one of these files in TWRP is the easiest way to go.
You can also find then repackaged as separate zip files from here
https://xiaomifirmwareupdater.com/
This site has a much greater archive, so is good if you need an older version that you can't find in the other site. You will need to make sure you download vendor and firmware files for the same version.
You should always stick to the version that is for the region of your phone. e.g. Indian vendor and firmware for an Indian K20 Pro, etc.
Some ROMs use an OSS vendor and so this is included as part of the ROM install. In which case there is no need to flash the MIUI vendor.
When a new version of MIUI is released, vendor and firmware files might get updated, to fix a bug or to add extra functionality. In this case some custom ROM devs will include them so that they get the bug fixes or extra functionality in their ROM too. When this happens they will update the minimum vendor and firmware version requirements for their custom ROM - the version will be the actual MIUI version in which the vendor and firmware files were updated.
Where a ROM doesn't specify vendor and firmware and doesn't have an OSS vendor, then it normally implies that any version will work that is from MIUI based on the same Android version. In this case use the most recent version, which you will already have if you've kept up to date with MIUI updates.
When installing a new ROM, you will only need to flash vendor and firmware files if your current version is less than the required version of the new ROM.
Click to expand...
Click to collapse
Thanks a lot brother, for this detailed explanation.. [emoji56][emoji1]

Can't boot into new rom

I have TWRP on my Mi 9T Pro but whenever I try to boot into a new rom it just boots back into TWRP, I think it's because I accidentally wiped everything including my kernel, but I'm not entirely sure, there's no errors when I try to install one, I've tried multiple, my phone doesn't have an OS installed ATM, no MiUI, I've tried flashing stock rom but that also doesn't work. I really don't know what to do.

sternje said:
I have TWRP on my Mi 9T Pro but whenever I try to boot into a new rom it just boots back into TWRP, I think it's because I accidentally wiped everything including my kernel, but I'm not entirely sure, there's no errors when I try to install one, I've tried multiple, my phone doesn't have an OS installed ATM, no MiUI, I've tried flashing stock rom but that also doesn't work. I really don't know what to do.
Click to expand...
Click to collapse
Restore MIUI by flashing a MIUI fastboot ROM.
Get the fastboot ROM from here
https://xiaomifirmwareupdater.com/miui/raphael/
Choose the fastboot ROM for the phone you have (European or Global). Make sure it is a fastboot ROM, not a recovery ROM.
Use this guide to flash it
https://c.mi.com/oc/miuidownload/detail?guide=2
View the page in desktop mode if viewing on a phone.
In step 5 make sure you change flash option to 'clean all' before hitting flash. This is three radio button options at the bottom of the flash tool. The default locks the bootloader, so you need to change it to keep the bootloader unlocked.
After doing this boot into MIUI at least once before trying to install something again.
When flashing a custom ROM over MIUI you need to format data in TWRP.
After installing TWRP, boot into it a do the following.
Perform a factory reset.
Format data - make sure you format, not wipe, need to type 'yes' to confirm.
Reboot back into TWRP - this makes sure the data partition is properly mounted after formatting.
Now flash the ROM you want and GApps if needed.
Reboot to system and it should be good.
Flash Magisk if needed.
Do not wipe anything else in TWRP. It's not needed.

sternje said:
I have TWRP on my Mi 9T Pro but whenever I try to boot into a new rom it just boots back into TWRP, I think it's because I accidentally wiped everything including my kernel, but I'm not entirely sure, there's no errors when I try to install one, I've tried multiple, my phone doesn't have an OS installed ATM, no MiUI, I've tried flashing stock rom but that also doesn't work. I really don't know what to do.
Click to expand...
Click to collapse
First Learn Basics while messing with your device.
Kernel is a part of ROM's Zip,
So even if you wiped kernel(so called boot), it will again gets re flashed with new ROM.
Second your problem is,
You are booting into wrong partition.
I am not sure , what you did.
But Mi9TPro has two partitions, Google's new A/B partition table for Android.
And you may have wiped both Flashed A(example) and booting into B.
Therefore it is not booting properly.
Ask in Telegram group for faster solution.
Or wait here for better solution in reply.
OR
Simply flash Fastboot,
And then try everything again.
Ans from next time, read everything step carefully and then proceed.
Sent from my Redmi K20 Pro using Tapatalk

itspdp said:
First Learn Basics while messing with your device.
Kernel is a part of ROM's Zip,
So even if you wiped kernel(so called boot), it will again gets re flashed with new ROM.
Second your problem is,
You are booting into wrong partition.
I am not sure , what you did.
But Mi9TPro has two partitions, Google's new A/B partition table for Android.
And you may have wiped both Flashed A(example) and booting into B.
Therefore it is not booting properly.
Ask in Telegram group for faster solution.
Or wait here for better solution in reply.
OR
Simply flash Fastboot,
And then try everything again.
Ans from next time, read everything step carefully and then proceed.
Click to expand...
Click to collapse
This phone does not have A/B partitions.

Robbo.5000 said:
This phone does not have A/B partitions.
Click to expand...
Click to collapse
It has, but you can't see then normally in twrp.
Ask in telegram group for fast solution.
And please do read about android partition tables feom android oreo.
Sent from my Redmi K20 Pro using Tapatalk

itspdp said:
It has, but you can't see then normally in twrp.
Ask in telegram group for fast solution.
And please do read about android partition tables feom android oreo.
Click to expand...
Click to collapse
It's an A only, system as root device. It is not an A/B device.
This is why MIUI updates need to be installed in system recovery. It does not install updates when the system is live.

if it's booting back into twrp. It's usually one of the three mistakes.
1. wrong vendor
2. didnt flash dfe
3. flashed dfe for stock rom
4. encrypted, so format data partition.
you can follow the guide: https://forum.xda-developers.com/k20-pro/how-to/simple-beginners-guide-to-raphaelin-t4020543
also, k20p is A partition only, not dual.
kernel is included with rom.
ask in telegram group for faster replies.

Sandeeep Kiran said:
if it's booting back into twrp. It's usually one of the three mistakes.
1. wrong vendor
2. didnt flash dfe
3. flashed dfe for stock rom
4. encrypted, so format data partition.
you can follow the guide: https://forum.xda-developers.com/k20-pro/how-to/simple-beginners-guide-to-raphaelin-t4020543
also, k20p is A partition only, not dual.
ask in telegram group for faster replies.
Click to expand...
Click to collapse
You don't need to flash dfe. I've not yet come across a situation where it is required. Flashing dfe will make life easier, at the cost of greatly reduced security, but there are always options to do what you want without flashing dfe.

Robbo.5000 said:
You don't need to flash dfe. I've not yet come across a situation where it is required. Flashing dfe will make life easier, at the cost of greatly reduced security, but there are always options to do what you want without flashing dfe.
Click to expand...
Click to collapse
It's required for oss based builds now.