Database Develop

Downgrade OxygenOS from 3.5.2 to 3.2.6 with Root / Xposed / Debloat

So I downgraded my Oneplus 3 from 3.5.2 to 3.2.6 and this was kind of a painful process, so I decided to share my experience with you.
If you follow this guide you will successfully downgrade from the latest Community Build to the newly released stable.
Note: Just because this worked for me, doesn't mean that it will work for you! Use this guide on your own risk and always use backups!
You'll need:
- Oneplus with OOS 3.5.2 and modified TWRP
- OxygenOS 3.2.6 Full ROM
- Latest official TWRP
- AndroidSDKSlim (needs Oneplus 3 USB drivers installed)
- SuperSU 2.78 SR1
- Xposed Framework (optional)
- Debloat Script (optional)
Downgrade:
Before you start, please create a COMPLETE backup of all your data.
You will factory reset your phone during the process.
1. Copy OOS 3.2.6 Full ROM, SuperSU, Xposed, Debloat Script to your Oneplus
2. Flash modified TWRP if you haven't already
3. Boot into modified TWRP
4. Select Wipe -> Advanced Wipe -> Select all but internal storage -> Swipe to Wipe
5. Install OOS 3.2.6 Full ROM
6. Reboot into system and use the installation wizard to setup your phone (do not setup fingerprints, or any device PIN)
7. Reboot into bootloader
8. Connect your phone to a PC/Notebook
9. Extract AndroidSDKSlim to your Desktop and copy twrp-3.0.2-1-oneplus3.img into \AndroidSDKSlim\android-sdk-windows\platform-tools
10. Run CMD with admin rights and navigate to \AndroidSDKSlim\android-sdk-windows\platform-tools
11. Run "fastboot flash recovery twrp-3.0.2-1-oneplus3.img" to revert to official TWRP recovery
12. Disconnect your phone and boot into recovery
13. Dirty flash OOS 3.2.6 again (this might sound stupid but it's mandatory)
14. Still in recovery, flash SuperSU, Xposed and Debloat Script
15. Wipe Dalvik & Cache
16. Reboot into system and setup your phone

Thanks for your guide !
Can you just please detail how to revert back to a custom ROM like RR or Nuclear when we come from Oxygen OS 3.5.2 community build ?

darkbash said:
Thanks for your guide !
Can you just please detail how to revert back to a custom ROM like RR or Nuclear when we come from Oxygen OS 3.5.2 community build ?
Click to expand...
Click to collapse
You're welcome.
Unfortunately, I can't provide guides for procedures I never went through.
But I asume that you could just flash any Custom ROM after you completely wiped your phone in step 4. So instead of flashing OOS 3.2.6 afterwards, just flash a custom ROM. Be sure that you have all zips you need on your internal storage and a backup to revert back to, if anything goes wrong. Otherwise you will have to use ADB sideload to install a ROM.

Ok, so I have a Modified TWRP installed already. Question is If I want to flash other ROMS after wiping system,dalvik/cache,data etc. Do I have to Flash official TWRP first followed by firmware,ROM, etc?
or firmware first then ROM and lastly official TWRP?
it's quite confusing.

I made a mistake and I installed the modified recovery installed the 3.5.2 rom and before booting I decided to restore my nand backup so I flashed the official twrp recovery and now I can't go to recovery anymore and the phone doesn't boot.
I imagine I have to sideload the modified twrp again but how do I do that? How do I reboot to bootloader ?
This is the only sign of life

gigeaky said:
I made a mistake and I installed the modified recovery installed the 3.5.2 rom and before booting I decided to restore my nand backup so I flashed the official twrp recovery and now I can't go to recovery anymore and the phone doesn't boot.
I imagine I have to sideload the modified twrp again but how do I do that? How do I reboot to bootloader ?
This is the only sign of life
Click to expand...
Click to collapse
Flash modified TWRP, and the recovery will return. then, follow the guide. it happened to me too.

darkbash said:
Thanks for your guide !
Can you just please detail how to revert back to a custom ROM like RR or Nuclear when we come from Oxygen OS 3.5.2 community build ?
Click to expand...
Click to collapse
First flash modified TWRP than install official 3.2.4 than flash CM ROM or custom ROM

uniQ191 said:
So I downgraded my Oneplus 3 from 3.5.2 to 3.2.6 and this was kind of a painful process, so I decided to share my experience with you.
If you follow this guide you will successfully downgrade from the latest Community Build to the newly released stable.
Note: Just because this worked for me, doesn't mean that it will work for you! Use this guide on your own risk and always use backups!
You'll need:
- Oneplus with OOS 3.5.2 and modified TWRP
- OxygenOS 3.2.6 Full ROM
- Latest official TWRP
- AndroidSDKSlim (needs Oneplus 3 USB drivers installed)
- SuperSU 2.78 SR1
- Xposed Framework (optional)
- Debloat Script (optional)
Downgrade:
Before you start, please create a COMPLETE backup of all your data.
You will factory reset your phone during the process.
1. Copy OOS 3.2.6 Full ROM, SuperSU, Xposed, Debloat Script to your Oneplus
2. Flash modified TWRP if you haven't already
3. Boot into modified TWRP
4. Select Wipe -> Advanced Wipe -> Select all but internal storage -> Swipe to Wipe
5. Install OOS 3.2.6 Full ROM
6. Reboot into system and use the installation wizard to setup your phone (do not setup fingerprints, or any device PIN)
7. Reboot into bootloader
8. Connect your phone to a PC/Notebook
9. Extract AndroidSDKSlim to your Desktop and copy twrp-3.0.2-1-oneplus3.img into \AndroidSDKSlim\android-sdk-windows\platform-tools
10. Run CMD with admin rights and navigate to \AndroidSDKSlim\android-sdk-windows\platform-tools
11. Run "fastboot flash recovery twrp-3.0.2-1-oneplus3.img" to revert to official TWRP recovery
12. Disconnect your phone and boot into recovery
13. Dirty flash OOS 3.2.6 again (this might sound stupid but it's mandatory)
14. Still in recovery, flash SuperSU, Xposed and Debloat Script
15. Wipe Dalvik & Cache
16. Reboot into system and setup your phone
Click to expand...
Click to collapse
worked like magic. Thankyou for this education. it didnt work when i followed other folks. Much appreciated.

So it seems I have booted with 3.5.2 and modified recovery. Now my question is: can I reboot in recovery at step 7 and install the original twrp recovery? Or can I use flashify? As I don't have access to a pc

I did ok but cant use adaway do you have a fix for it?
Enviado do meu ONEPLUS A3003 através de Tapatalk

I'm trying to return to 3.2.6 after trying 3.5.2.
However, after flashing and booting 3.2.6, I boot into fastboot mode and the official TWRP refuses to flash. It reports that it's failed and then I'm left with no recovery until I reflash the modified TWRP.
I could try restoring my Nandroid backup of 3.2.6 with the modified TWRP, but I'd prefer to return to the official TWRP before doing this.
Any suggestions?
Edit: Fixed it. I downloaded the official TWRP again and it flashed. The first download must have been corrupted.

I followed a different method and successfully downgraded today to a former nandroid. I was rooted without xposed.
3.2.6 to 3.5.2 dirty flash
- installed modded twrp
- performed backup on 3.2.6
- installed modded 3.5.2 (the only that flashes in twrp)
- installed root SR1
- wiped caches only
- reboot
3.5.2 to 3.2.6 restore
- downloaded 3.2.6
- boot to modded twrp, wipe both caches, data, system
- flashed 3.2.6 stock and root SR1
- restored 3.2.6
- wiped caches
- reboot
- enjoying my LTE again
Without first installing stock, after a restore my phone was boot locking right after the oneplus white logo (capacitive buttons would light up, but it would not boot to red logo). Had to press vol down and power to force it to boot menu to select recovery and get back to twrp
Hope this helps someone, it's a bit easier than swapping twrps and no need to boot up/flash 3.2.x twice.

So if I am on the CB and want to go back to 3.2.6
I can flash 3.2.6 with the modded TWRP
Then flash Official TWRP and boot?

If I have official recovery, no root, and locked bootloader, can I downgrade from 3.5.3 to 3.2.6 without any problems, just by sideloading the zip in ADB? Thankss

popab said:
If I have official recovery, no root, and locked bootloader, can I downgrade from 3.5.3 to 3.2.6 without any problems, just by sideloading the zip in ADB? Thankss
Click to expand...
Click to collapse
i would also like to know this please

bigup7 said:
i would also like to know this please
Click to expand...
Click to collapse
I did it and it does work perfectly. Just make sure to wipe data from recovery after flashing.

I was on Comunity Build v.3.5.4. I want it back FreeDom v.1.6.
I did:
1. Flash Twrp-3.0.2-19-oneplus3.img.zip. Somebody sugested original twrp 3.0.2.1 from twrp site. For me did NOT work. Phone not booting in recovery with 3021.
2. Advanced wipe. Wipe dalvik cache/cache/system/data
3. Flash Freedom v.1.6. Clean Flash it's safer & better.
Done. System works. Recovery works.

null0seven said:
I was on Comunity Build v.3.5.4. I want it back FreeDom v.1.6.
I did:
1. Flash Twrp-3.0.2-19-oneplus3.img.zip. Somebody sugested original twrp 3.0.2.1 from twrp site. For me did NOT work. Phone not booting in recovery with 3021.
2. Advanced wipe. Wipe dalvik cache/cache/system/data
3. Flash Freedom v.1.6. Clean Flash it's safer & better.
Done. System works. Recovery works.
Click to expand...
Click to collapse
I am on CB Freddom os
I want to go back either to stock or to op3lite.
I cant reboot to recovery.
But adb works yet.
What to do plz suggest.
Sent from my ONEPLUS A3003 using Tapatalk

1. If system don't boot. Reboot to fastboot.
- Flash recovery.img. If PC don't see youre phone option 2.
2. If system boots, open phone like normal.
- Extract recovery img. Put it on the TWRP file on phone sd card.
- Download Flashify from play. Open it, flash img of recovery. Open recovery to chech if it works.
Try with both recovery (3.0.2.0 or modified 3.0.2.-19). One of those will work.

Im getting system partition has unexpected contents after OTA update after installing step 5 ????

Flash OOs Oreo Stable release

Folks,
Seeing alot of comments about bootloops, etc after trying to install the new stable OOS Oreo release.
I went through the same issue myself and found the following method to work best.
PLEASE NOTE: I'm not responsible if this does Any type of damage or issues to your device.
Be sure to backup all you need to back up to your PC.
1. Complete wipe of phone.
2. Flash the stock recovery that was used for reverting from Oreo Beta to Nougat. http://oxygenos.oneplus.net.s3.amazonaws.com/OP5_recovery.img
3. Wipe everything again.
4. Sideload new Oreo release. (Credit @HatRiGt, https://drive.google.com/open?id=1NW5zyUOL6bWgUWozFGLiutzud203npKp)
5. Reboot to bootloader and flash the Chinese TWRP. https://drive.google.com/open?id=1AKbC4HB0h4rEldQUowWGdyM4iYBVV--7
6. Reboot to recovery and flash Magisk. I flashed the 14.6 version and haven't found any issues yet. (https://forum.xda-developers.com/attachment.php?attachmentid=4366826&d=1513897917)
7. Boot phone.
I cannot promise this will work for you, but it has done the job for me.
Running Oreo Stable with Magisk 14.6 and restored all apps from Titanium Backup that I saved on my PC.

I highly suggest blu_spark TWRP instead of chinese one, and i think this method is ONE of the other working way

Couldn't get mine to work with blu spark, hence why I had to use chinese

Link for Chinese twrp please

Thank you very much, work for me

Make a video of it please

New Magisk v.15.
Thanks to topjohnwu.

joecaesar said:
Link for Chinese twrp please
Click to expand...
Click to collapse
Added to OP.

All is well. And with google Drive almost all data is back.

Nice & easy workaround..
Step 5 has to be : install TWRP on fastboot mode...

@hallo dare
Any chance you can make a very detailed video about this process?

cultofluna said:
Nice & easy workaround..
Step 5 has to be : install TWRP on fastboot mode...
Click to expand...
Click to collapse
Yes, sorry. Amended text now.

lvints said:
@hallo dare
Any chance you can make a very detailed video about this process?
Click to expand...
Click to collapse
No real need for a video mate, just follow the post step by step and you're golden!

I can not sideload Oreo zip, it says can not read

Lvsitano said:
I can not sideload Oreo zip, it says can not read
Click to expand...
Click to collapse
You should try changing the TWRP

If you have problems with adb sideload:
Boot into fastboot and install stock .
Unlock/Lock your Phone and unlock it again. Locking will wipe the whole phone.
After this you can make a clean installation.
Reboot to bootloader and flash the Chinese TWRP and boot to Recovery.
Install the oreo.zip file.
Reboot to System.
Make your Setup: WLAN, GMail Account aso.....
After all boot to Recovery and install Magisk

Very easy, put oreo zip file in the root folder, backup all data, flash stock recovery, boot with stock recovery, wipe cache, upgrade internal..., Select oreo zip file and flash it, then back and select wipe, select erase every thing and reboot. Done.

Thank you so much! I finally got it working. I needed to do a factory wipe and skip the magisk installation but it worked!
Cheers!

nikoeuren said:
Thank you so much! I finally got it working. I needed to do a factory wipe and skip the magisk installation but it worked!
Cheers!
Click to expand...
Click to collapse
Magisk won't flash on stock recovery, if that's the reason you had to skip installing it.

hallo dare said:
Magisk won't flash on stock recovery, if that's the reason you had to skip installing it.
Click to expand...
Click to collapse
No I installed the TWRP and flashed magisk. It refused to boot so I factory swiped it and all was good. Now I have to figure out how to install magisk without getting into bootloop.
Sent from my ONEPLUS A5000 using Tapatalk

[Official] Android 9 Community Beta for OnePlus 3/3T

For Unlocked Bootloader Devices - Flash at your own risk. Make sure to take a complete internal memory backup before flashing.
Following is a copy-paste from OP Forums
Hey everyone,
We know everyone is excited to finally try the delicious Pie update on the OnePlus 3 and OnePlus 3T. Thanks to the feedback from our beta testers, we are getting closer to launching Android Pie on the OnePlus 3 and 3T.
Now, we would like to invite you to download and try the Community Build available here and continue to help us shaping the stable update. Anyone can try this build, but please have in mind it won’t be available via OTA, you’ll have to download and install it yourself.
Community Beta for OnePlus 3
https://oxygenos.oneplus.net/OnePlus3Oxygen_16_OTA_075_all_1904171151_74affb85cc694452.zip
Community Beta for OnePlus 3T
https://oxygenos.oneplus.net/OnePlus3TOxygen_28_OTA_075_all_1904171149_20a0443ddf734944.zip
Those who download the Community Beta build will get OTA update when the stable build is released.
Changelog
System
Updated system to Android™ 9 Pie™
Brand new UI for Android Pie
Updated Android security patch to 2019.4
Do Not Disturb mode
New Do Not Disturb mode with adjustable settings
New Gaming mode 3.0
Added text notification mode
Added notification for 3rd party calls
Phone
Deep integration with Google Duo
Camera
Integrated Google Lens mode
Instructions for updating to the Community Build
For those on the latest stable version 181206
Preconditions: Boot Loader should be locked
Steps:​
Download the file from the link provided on the forum post
Move the downloaded file to internal storage root folder using the File Manager.
The device can then be updated via two methods.
First method: Local Update
Open Settings -> System update -> Click top right setting icon
Choose Local update
Click on the downloaded file and wait until the device reboots
Second Method: Recovery Update
Turn off the device -> Press power and volume up key simultaneously until the device enters the Fastboot Mode
Navigate to Recovery option using volume and power button -> Choose English -> Install from Internal storage -> Select the downloaded zip file -> Select 'Yes'
Wait until the installation is complete -> Reboot
​
For those who are on the latest Open Beta version 180712
Note: The entire data will be wiped since there will be a version transition from Open beta to the stable version. If you made a OnePlus Switch backup, be sure to make a copy of it before moving forward.
Steps:
Download the file form the link provided on the forum post
Move the downloaded file to internal storage
Device can be updated only via Recovery Update:
Turn off the device -> Press power and volume up key simultaneously until the device enters the Fastboot Mode
Navigate to Recovery option using volume and power button -> Choose English -> Install from Internal storage -> Select the downloaded zip file -> Select 'Yes'
Wait until the installation is complete -> Reboot
​
Thank you once again for all your patience and we can’t wait to get your feedback.
We are one step closer to releasing the Pie for OnePlus 3 / 3T, you can now download and try our community build right now.
Never Settle.
EDIT 1
Procedure that worked for me
So I've managed to install it and as expected, I had to format and delete everything on my internal memory. Here is the procedure I've followed and I'm 100% sure it'll work for others too.
Stuff I did before flashing:
1. Took a complete backup of internal memory.
2. Downloaded ROM + Recovery ( I use Holy Dragon custom twrp) + magisk 18.1 zip to an external OTG drive
My Configuration before flashing:
OOS 5.0.8, Unlocked BL, Magisk and root, Custom Kernel, Custom HolyDragon recovery
Procedure I followed:
1. Boot to recovery.
2. Wipe System, Dalvik, Cache
3. "Format Internal Memory". Please note, I formatted internal memory, not just wiped. This will remove encryption for once which will help the rom boot. It won't boot on encrypted partition with unlocked bootloader on first start up.
4. Flashed ROM zip.
5. Flashed twrp image.
6. Pressed power button for as long as possible until it rebooted again.
7. Pressed volume button before it could reboot so that i can select recovery. This step is important. If you won't do it, your recovery will be replaced with stock one.
8. Flash magisk zip. 18.1
9. Reboot system. It will take 10-15 minutes as it will reencrpt the storage.
10. Profit! Enjoy your new official oos pie on OP3/T.
Some things to note:
1. On first boot, it WILL NEED either mobile data or wifi. It downloaded some update and then installed and proceeded.
2. It will ask for your previous pattern. It didn't work for me so i simply login with my previous Gmail account on 5.0.8 and login successfully.
3. You will need to install magisk manager on first boot. It will show magisk not installed. Don't panic. Simply reboot your device once and it will appear in magisk on second reboot.
EDIT 2:
Community Beta 2 Released 5/6/2019
Hey everyone,
Here is the Community beta 2 for the OnePlus 3 and OnePlus 3T, the update primarily contains bug fixes:
Changelog
Bug fixes
Clock timer and stopwatch interface display is incomplete
Microphone doesn't work when earphones are plugged in
Crash issues with native message app
Community Beta 2 for OnePlus 3
https://oxygenos.oneplus.net/OnePlus3Oxygen_16_OTA_080_all_1905061403_459f9d6e543f4a16.zip
Community Beta 2 for onePlus 3T
https://oxygenos.oneplus.net/OnePlus3TOxygen_28_OTA_080_all_1905061406_f9d7f76f3a5d45da.zip

I am at the latest open beta, unlocked bootloader, rooted with twrp recovery. Does anyone know if I could flash this build through twrp?

brian13th said:
I am at the latest open beta, unlocked bootloader, rooted with twrp recovery. Does anyone know if I could flash this build through twrp?
Click to expand...
Click to collapse
I am currently at work. I will flash it once I am home. but make sure you take complete backup of your internal memory. It will mess up your internal data partition if you have unlocked bootloader. Don't take an unnecessary risk with your data.

Flashed over closed pie beta (unlocked bootloader) with stock recovery. No internal data lost. :laugh:

FSadino said:
Flashed over closed pie beta (unlocked bootloader) with stock recovery. No internal data lost. :laugh:
Click to expand...
Click to collapse
Flashed over closed pie beta (unlocked bootloader) with Red Wolf recovery. No problem, no data loss.

FSadino said:
Flashed over closed pie beta (unlocked bootloader) with stock recovery. No internal data lost. :laugh:
Click to expand...
Click to collapse
kojakcr said:
Flashed over closed pie beta (unlocked bootloader) with Red Wolf recovery. No problem, no data loss.
Click to expand...
Click to collapse
That makes sense as you already had the closed pie build. Also, one question, are you both currently encrypted?

abhibnl said:
That makes sense as you already had the closed pie build. Also, one question, are you both currently encrypted?
Click to expand...
Click to collapse
I am

FSadino said:
I am
Click to expand...
Click to collapse
Seems like there is no other way than to format internal memory once. I'm on stock 5.0.8 rooted and UL BL

Where I found a download link from stock recovery.
On the OnePlus page I don't found it.
After flash stock recovery I must locked bootloader
Thanks
Sent from my ONEPLUS A3003 using XDA-Developers Legacy app

Clean install, twrp 3.30-1, magisk, everything's fine
Thank you oneplus

On the 3T build I can't get it to install magisk for God's sake. The system partition is full and it seems it installs magisk fine, but when I boot up it says it isn't installed.... Tried different versions from 17.2 to 19

What's the procedure if I'm on twrp with custom rom?

Ed_Newgate said:
What's the procedure if I'm on twrp with custom rom?
Click to expand...
Click to collapse
The procedure is always the same, the results may be different.
Factory reset
Wipe data, system, cache, art
Flash zip
Reboot

So I've managed to install it and as expected, I had to format and delete everything on my internal memory. Here is the procedure I've followed and I'm 100% sure it'll work for others too.
Stuff I did before flashing:
1. Took a complete backup of internal memory.
2. Downloaded ROM + Recovery ( I use Holy Dragon custom twrp) + magisk 18.1 zip to an external OTG drive
My Configuration before flashing:
OOS 5.0.8, Unlocked BL, Magisk and root, Custom Kernel, Custom HolyDragon recovery
Procedure I followed:
1. Boot to recovery.
2. Wipe System, Dalvik, Cache
3. "Format Internal Memory". Please note, I formatted internal memory, not just wiped. This will remove encryption for once which will help the rom boot. It won't boot on encrypted partition with unlocked bootloader on first start up.
4. Flashed ROM zip.
5. Flashed twrp image.
6. Pressed power button for as long as possible until it rebooted again.
7. Pressed volume button before it could reboot so that i can select recovery. This step is important. If you won't do it, your recovery will be replaced with stock one.
8. Flash magisk zip. 18.1
9. Reboot system. It will take 10-15 minutes as it will reencrpt the storage.
10. Profit! Enjoy your new official oos pie on OP3/T.
Some things to note:
1. On first boot, it WILL NEED either mobile data or wifi. It downloaded some update and then installed and proceeded.
2. It will ask for your previous pattern. It didn't work for me so i simply login with my previous Gmail account on 5.0.8 and login successfully.
3. You will need to install magisk manager on first boot. It will show magisk not installed. Don't panic. Simply reboot your device once and it will appear in magisk on second reboot.
Let me know if you need additional help.

would u say worth changing to this from the one3os cb rom all seems to be the same there as this?

ireaper4592 said:
would u say worth changing to this from the one3os cb rom all seems to be the same there as this?
Click to expand...
Click to collapse
I can't say for sure. I have never tested CB. But this is the latest we have and it could have some under the hood fixes. I would recommend flashing this over CB

I need some help. I was on the latest Lineage OS version, got into recovery and formatted my data. Then I flashed the OOS Pie version. Got stuck on the OOS boot animation. Then I tried flashing the last OOS Beta and the last Official OOS but both are stuck on the same OOS boot animation. I also tried locking my bootloader and then starting again but didnt work out either...

HouseFuzzy said:
I need some help. I was on the latest Lineage OS version, got into recovery and formatted my data. Then I flashed the OOS Pie version. Got stuck on the OOS boot animation. Then I tried flashing the last OOS Beta and the last Official OOS but both are stuck on the same OOS boot animation. I also tried locking my bootloader and then starting again but didnt work out either...
Click to expand...
Click to collapse
You should be stuck on the booatanimation for at least 10-15 minutes. It's re-encrypting your /data partition.

abhibnl said:
You should be stuck on the booatanimation for at least 10-15 minutes. It's re-encrypting your /data partition.
Click to expand...
Click to collapse
Alright gonna give it an other try then. Flashed the Pie OOS now via TWRP at around 11.20 german time. If its not getting over the boot animation by like 12.00 german time im gonna reply again.
---------- Post added at 12:16 PM ---------- Previous post was at 11:27 AM ----------
abhibnl said:
You should be stuck on the booatanimation for at least 10-15 minutes. It's re-encrypting your /data partition.
Click to expand...
Click to collapse
Alright been letting it go an hour now. Still in the boot animation.

svandasek said:
On the 3T build I can't get it to install magisk for God's sake. The system partition is full and it seems it installs magisk fine, but when I boot up it says it isn't installed.... Tried different versions from 17.2 to 19
Click to expand...
Click to collapse
Having similar issue, but on my side Magisk is installed, apps correctly receives the root privileges, but AdAway can't install the hosts file, it says system partition is full.

A SIMPLER [GUIDE] For UPDATING And Keeping ROOT And TWRP

Most of the steps are from mauronofrio from his twrp guide.
To update and Keep root and twrp for OnePlus 7 Pro (you must already have root, twrp, and unlocked bootloader) :
1) Download the full 2 gb Non-Root Stock system update to the the SD card. This means download the Non-Root, Non-Patched, Non-Incremental, totally Original Stock Oxygen OS update zip through the Oxygen Updater App, and Not through the phone system update. Or you can download the totally Original Stock Oxygen OS update zip to your SD card from the OnePlus website, if it is available to download yet.
2) boot into recovery (twrp)
3) flash the Oxygen OS Stock rom (do not reboot yet!!!)
4) flash twrp (do not reboot yet!!!)
5) flash magisk, wipe dalvick cache
6) reboot
7) after start up, Reboot into recovery Again (twrp)
8) in twrp, flash magisk again
9) reboot
10) Done, go on with your merry rootin' day.
This does not wipe data, when done properly. I updated my GM1917 to 9.5.13.GM21AA using this method a few minutes ago. I kept Magisk Root and TWRP. No problems. And then I flashed me some xXx rom.
I know there was another guide for updating too, but that had too many diagrams and charts and my brain couldn't handle the pressure.

Same steps for moving back to OOS from custom ROM?

vrushank__ said:
Same steps for moving back to OOS from custom ROM?
Click to expand...
Click to collapse
Sure! This is what I did.
I had xXx rom installed on my OnePlus 7 not pro version before I bought my OnePlus 7 pro. So, hopefully, it will be basically the same steps. Although, I am not responsible for any rats that wake from the dead as Zombie Rats and eat your phone.
1)Download the stock Oxygen OS rom to the sd card on your phone from the Oxygen OS website, or from the Oxygen Updater app, or from XDA. Just make sure it is the Stock Rom though.
2) Go into TWRP and flash your Custom Rom's Uninstaller, if there was one, that the developer made with the custom rom. (do not reboot!!!!)
3) In TWRP, flash the Magisk uninstaller. (do not reboot!!!!!)
4) In TWRP, flash the Oxygen OS Stock Rom.
4) Reboot.
The Custom Rom, Magisk, and TWRP will No Longer be on your phone.
Mod edit: Link removed!

Or just:
1. Boot twrp
2. Install rom
3. Install twrp installer
3b. Install disable dm
4. Reboot recovery
5. Install magisk
5b. Install disable dm
6. Reboot system.
Have no issues doing this ^^

MrCreel said:
Or just:
1. Boot twrp
2. Install rom
3. Install twrp installer
3b. Install disable dm
4. Reboot recovery
5. Install magisk
5b. Install disable dm
6. Reboot system.
Have no issues doing this ^^
Click to expand...
Click to collapse
No issues, Commander. Not one.

MrCreel said:
Or just:
1. Boot twrp
2. Install rom
3. Install twrp installer
3b. Install disable dm
4. Reboot recovery
5. Install magisk
5b. Install disable dm
6. Reboot system.
Have no issues doing this ^^
Click to expand...
Click to collapse
Or just: make your own thread.

A.Noob said:
Or just: make your own thread.
Click to expand...
Click to collapse
Woah, wasn't meant as disrespect or anything, just pointing it out since you wanted it to be simple

Sorry. I was applying the universal law of the internet. Strike first, put fist in mouth second. :silly:
Thanks for your input and merry day to you.

Question Question about OTA update zip file

My phone M2102K1G came with IN ROM as I bought the phone in India during launch.
I unlocked bootloader and flashed Xiaomi.eu's fastboot ROM which is based on CN ROM and my model was then M2102M1C. I didn't like the Xiaomi.eu ROM and switched to Global MI fastboot Rom. Rooted as well. Very happy with this
I did not fastboot flash TWRP and left my phone on stock recovery. I have tested fastboot boot TWRP and that works well though the initial language (TWRP) is Chinese and you have to first switch the language to English. I haven't flashed anything via TWRP as yet.
My question is:
OTA zip file (Global MI Rom)
Can i flash it via TWRP?
Even though my phone is for the India IN region?
And if I can flash it via TWRP, then do I immediately flash with Magisk zip as well to keep root?
Thanks to anyone who had the patience to read through this and can hopefully reply.

In case you want update a stock ROM without TWRP and keep root throughout the updates here is my guide to do so.
Download on your phone latest recovery package manually from trusted websites. You can find the ROMs and firmware specific for your device on here https://xiaomifirmwareupdater.com/miui/star/ remember to download the recovery version
Disable magisk modules and reboot
Upon reboot go to settings->system version->Miui(top left button)-> in the updater click several times on the main icon to unlock hidden settings->once unlocked tap on the three dots on the top right and select "choose update package"->browse your folder to find the downloaded recovery package,select it and press the V button on the bottom->update will start->wait until completion and reboot
Once rebooted follow the procedure to flash magisk.zip
Reboot the phone into fastboot
Connect phone to the pc
Boot into twrp
Once in twrp flash dalvik and cache
Flash magisk.zip and rewipe dalvik and cache
Reboot system and voila

xNAPx said:
In case you want update a stock ROM without TWRP and keep root throughout the updates here is my guide to do so.
Download on your phone latest recovery package manually from trusted websites. You can find the ROMs and firmware specific for your device on here https://xiaomifirmwareupdater.com/miui/star/ remember to download the recovery version
Disable magisk modules and reboot
Upon reboot go to settings->system version->Miui(top left button)-> in the updater click several times on the main icon to unlock hidden settings->once unlocked tap on the three dots on the top right and select "choose update package"->browse your folder to find the downloaded recovery package,select it and press the V button on the bottom->update will start->wait until completion and reboot
Once rebooted follow the procedure to flash magisk.zip
Reboot the phone into fastboot
Connect phone to the pc
Boot into twrp
Once in twrp flash dalvik and cache
Flash magisk.zip and rewipe dalvik and cache
Reboot system and voila
Click to expand...
Click to collapse
Ok thanks.
I'm definitely gonna follow these steps the next time I get an OTA update.
Don't need to be rooted to flash boot TWRP is it?

No, you don't need,but you don't flash twrp, you just boot into twrp

If I have a unlocked and rooted phone with stock recovery, what happens if I just update normally via the stock update procedure? Will it not work?
Without disabling Magisk or anything and just updating.

Honestly I don't know but I can say that magisk wasn't fully working after updating without reflashing it

Okay.
So I cannot flash the OTA zip.
But have to update using the full recovery ROM for the updated version.
And then flash Magisk via fastboot boot TWRP

xNAPx said:
In case you want update a stock ROM without TWRP and keep root throughout the updates here is my guide to do so.
Download on your phone latest recovery package manually from trusted websites. You can find the ROMs and firmware specific for your device on here https://xiaomifirmwareupdater.com/miui/star/ remember to download the recovery version
Disable magisk modules and reboot
Upon reboot go to settings->system version->Miui(top left button)-> in the updater click several times on the main icon to unlock hidden settings->once unlocked tap on the three dots on the top right and select "choose update package"->browse your folder to find the downloaded recovery package,select it and press the V button on the bottom->update will start->wait until completion and reboot
Once rebooted follow the procedure to flash magisk.zip
Reboot the phone into fastboot
Connect phone to the pc
Boot into twrp
Once in twrp flash dalvik and cache
Flash magisk.zip and rewipe dalvik and cache
Reboot system and voila
Click to expand...
Click to collapse
How will I get boot.img from the recovery ROM?
Only fastboot ROM will have boot.img

I think you have a bit of confusion, only thing you have to di is download magisk.zip on your phone, boot into twrp and flash it, simple

How to Install OTA Updates on Rooted Android Devices using Magisk [Without Losing Root]
An OTA update has arrived, but you cannot install it because your Android device is rooted? Well, that's a known downside of rooting Android. In this guide, you will learn how to install OTA updates…
www.thecustomdroid.com

keneth_c said:
If I have a unlocked and rooted phone with stock recovery, what happens if I just update normally via the stock update procedure? Will it not work?
Without disabling Magisk or anything and just updating.
Click to expand...
Click to collapse
Yes, you will probably have to reinstall Magisk as root will more than likely be broken. The update server still sees a stock rom and as long as you have stock recovery, the stock OTAs will work.

The guide posted above explains properly the steps. Will try that next time around.