Upgrade from Oxygen OS5.0.8 (Android Version 8.0.0) to the latest Android 9.0.3

[TheoKondak]

Hello, I used to modify my android a lot, but it's been a while now. So before I soft brick my device, I'd like to get some advice.

My OT3T used to have a custom TWRP, and rooted with Magisk. Today, I found out, that for some reason, it has rollbacked back to default recovery and the root no longer works. My bootloader is still unlocked though.

So questions. Which version of TWRP would be the best for the new 9.0.3? Can I flash the latest TWRP version straight away or I have to install an older version and then update it?
Which version of Magisk? I guess the latest will do.

Then if the TWRP is installed properly, I guess, I can just follow the guideline from this thread: https://forum.xda-developers.com/on...l-oxygenos-5-0-1-android-8-0-t3728119/page135

 

[BillGoss]

Hello, I used to modify my android a lot, but it's been a while now. So before I soft brick my device, I'd like to get some advice.

My OT3T used to have a custom TWRP, and rooted with Magisk. Today, I found out, that for some reason, it has rollbacked back to default recovery and the root no longer works. My bootloader is still unlocked though.

So questions. Which version of TWRP would be the best for the new 9.0.3? Can I flash the latest TWRP version straight away or I have to install an older version and then update it?
Which version of Magisk? I guess the latest will do.

Then if the TWRP is installed properly, I guess, I can just follow the guideline from this thread: https://forum.xda-developers.com/on...l-oxygenos-5-0-1-android-8-0-t3728119/page135

Just flash the latest version of TWRP (3.3.1-0) and the latest stable version of Magisk (19.3). Then follow the instructions.
Make sure you backup your user data (/sdcard) to your PC before updating OOS.

Sent from my OnePlus 3T using XDA Labs

 

[TheoKondak]

Just flash the latest version of TWRP (3.3.1-0) and the latest stable version of Magisk (19.3). Then follow the instructions.
Make sure you backup your user data (/sdcard) to your PC before updating OOS.

Sent from my OnePlus 3T using XDA Labs

Thanks Bill. I will try that today. I hope it will run smoothly.