Develop Bugs

How to update from 7.1.1 to 10.0

Hello,
I've just bought fresh new and sealed OP5T 8/128.
I've got ONEPLUS A5010_43_171115 build (Android 7.1.1, Oxygen 4.7.2) installed on the phone.
How can I update it to Android 9 or straight to the 10? The OTA doesn't show any updates and when I tried to install 9.0.11 using local file from the official OnePlus website, the installation failed
Thanks for your help in advance
Maciej

mazo89 said:
Hello,
I've just bought fresh new and sealed OP5T 8/128.
I've got ONEPLUS A5010_43_171115 build (Android 7.1.1, Oxygen 4.7.2) installed on the phone.
How can I update it to Android 9 or straight to the 10? The OTA doesn't show any updates and when I tried to install 9.0.11 using local file from the official OnePlus website, the installation failed
Thanks for your help in advance
Maciej
Click to expand...
Click to collapse
Use Oxygen Updater from the Play Store. It'll show you the latest version you can update to safely (it will most likely be OOS 5.1.4, which creates the vendor partition). Once done, re-open Oxygen Updater and it'll show OOS the next latest you can update to safely (and this should be OOS 10).

You need to install 5.1.4 first, then update to 10

Which OOS9 version is best?

I didn't like half-as*ed OOS10 update for 5T so i decided to rollback to latest OOS9 which is 9.0.11 but after using for a while i remember good ol' days that this version had problems with aggresive background app killing, i couldn't remember which OOS9 was the best for 5T, is beta 33 any good?

Tried Open Beta 33 for a while but it has battery optimization problems similar to 9.0.11, it kills some processes like Whatsapp then unable to receive messages unless i open Whatsapp manually. This has been also reported with Oneplus Nord.
Seems like OOS 9.0.10 and above is preparation upgrades for OOS10 and they are buggy as F.
If anyone wants to go back some stable OOS9 version i suggest you to use 9.0.9. Its the latest working OOS9 rom for 5T.

How to downgrade oos 10 to oos 9?? Can you help me out here.

rakesh595160 said:
How to downgrade oos 10 to oos 9?? Can you help me out here.
Click to expand...
Click to collapse
Just download zip file from here
[OP5T] [ROM] [OTA] [OOS] Mirrors for official OxygenOS ROMs and incremental OTAs
Welcome! As OnePlus doesn't always provide direct download links for all of the OxygenOS full zips & incremental OTA zips, we have taken the initiative of mirroring them on AndroidFileHost and consolidating all the links in one place, so that...
forum.xda-developers.com
and flash it via recovery,

Question HydrogenOS?

I have a Oneplus 9 pro which I bought from a chinese company in Hong Kong - Bludiode.com - I have been told it has Hydrogen OS on it but nothing says Hydrogen OS anywhere? It has just updated to Android 12 with a couple of updates recently. Is there any way I can check what it has on it. I always have been able to use Google and everything has worked well but the latest Android 12 has stopped the Amazon Alexa app working properly. Not fantastically worried but hey.
Where should I go from here? Some say change to OxygenOS but not sure if this is possible. Should I change to ColorOS and then OxygenOS? I'm in the UK.
Inspire me....
LE2125_11_C39
Android 12 Security update 5

pjpern said:
I have a Oneplus 9 pro which I bought from a chinese company in Hong Kong - Bludiode.com - I have been told it has Hydrogen OS on it but nothing says Hydrogen OS anywhere? It has just updated to Android 12 with a couple of updates recently. Is there any way I can check what it has on it. I always have been able to use Google and everything has worked well but the latest Android 12 has stopped the Amazon Alexa app working properly. Not fantastically worried but hey.
Where should I go from here? Some say change to OxygenOS but not sure if this is possible. Should I change to ColorOS and then OxygenOS? I'm in the UK.
Inspire me....
LE2125_11_C39
Android 12 Security update 5
Click to expand...
Click to collapse
You will need to search for a11 downgrade zip from a12. Le2125 is global varient so you need the global downgrade package found here
How to Downgrade OnePlus 9/Pro from Android 12 to Android 11
In this guide, we will show you the steps to downgrade your OnePlus 9/Pro device from Android 12 (OxygenOS 12) to Android 11 (OxygenOS 11).
www.droidwin.com
You will need to install the local update app found on this page to use the downgrade package
Ps back up all your data when you downgrade it will wipe your phone. This will take you back to a11 and you can update to oos12 from here if you like. Still to many bugs for me in a12 right now.

toolhas4degrees said:
You will need to search for a11 downgrade zip from a12. Le2125 is global varient so you need the global downgrade package found here
How to Downgrade OnePlus 9/Pro from Android 12 to Android 11
In this guide, we will show you the steps to downgrade your OnePlus 9/Pro device from Android 12 (OxygenOS 12) to Android 11 (OxygenOS 11).
www.droidwin.com
You will need to install the local update app found on this page to use the downgrade package
Ps back up all your data when you downgrade it will wipe your phone. This will take you back to a11 and you can update to oos12 from here if you like. Still to many bugs for me in a12 right now.
Click to expand...
Click to collapse
I'm a complete novice so please be gentle!! It says downgrade from OOS12 to OOS11. I don't have OOS12 - It's Hydrogen so is this the right file?

toolhas4degrees said:
You will need to search for a11 downgrade zip from a12. Le2125 is global varient so you need the global downgrade package found here
How to Downgrade OnePlus 9/Pro from Android 12 to Android 11
In this guide, we will show you the steps to downgrade your OnePlus 9/Pro device from Android 12 (OxygenOS 12) to Android 11 (OxygenOS 11).
www.droidwin.com
You will need to install the local update app found on this page to use the downgrade package
Ps back up all your data when you downgrade it will wipe your phone. This will take you back to a11 and you can update to oos12 from here if you like. Still to many bugs for me in a12 right now.
Click to expand...
Click to collapse
I have got as far as downloading the 2 files to the root BUT
The Local Upgrade as well as other system update options are not visible under the Update Settings page. So how do I install these? They don't install automatically and there is no way that I can see to install them?

pjpern said:
I have got as far as downloading the 2 files to the root BUT
The Local Upgrade as well as other system update options are not visible under the Update Settings page. So how do I install these? They don't install automatically and there is no way that I can see to install them?
Click to expand...
Click to collapse
Rename the download to. Zip put in root storage

Question LE2123 A12 to A13

Hi
I'm completely stock on the latest version of A12 for the EU 9pro : LE2123_11_C.66
In the UK we still haven't received the OTA for A13.
I've read that the second iteration of A13 is available : LE2123_11_F.72
After some searching I've found that I can get the official OnePlus version using oxygen updater.
My question is that I can go directly from A12 to A13 with the above?
Thanks

AndyC76 said:
Hi
I'm completely stock on the latest version of A12 for the EU 9pro : LE2123_11_C.66
In the UK we still haven't received the OTA for A13.
I've read that the second iteration of A13 is available : LE2123_11_F.72
After some searching I've found that I can get the official OnePlus version using oxygen updater.
My question is that I can go directly from A12 to A13 with the above?
Thanks
Click to expand...
Click to collapse
Yes it works, I updated myself with oxygen updater from C.66 straight to F.72.
Be aware that in A13 F.72 the option for ram expansion dissapears. So if you want to change anything in the ram expansion option do it before updating.

Appreciated, I've now upgraded.

Question Can I downgrade my 9rt from oxygen os 13 to 12?

my phone came with coloros originally and I flashed oxygen os from xda, which later I OTA updated to 13.
I'm not very happy with file access denial on Android 13, can I downgrade it through zip files as youtube videos instruct?

Go here OnePlus Forums