How To Guide OnePlus 9: How to switch between Color OS and Oxygen OS without unlocking the bootloader

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rdaltonjay

New member
May 15, 2021
4
0
what country are you from? seems a common problem with oneplus 9 series color os cn version when converting to oxygen os. maybe its a wrong move for oneplus to use oppo's os.. it would be better if they stick with hydrogen for the cn versions.. older series doesnt experience such error.. you have the nvbackupui warning too?
I'm from the Philippines. Yes, I had the nvbackupui warning too. I'm just wondering if the India version can be converted to Global version. Seeing the other threads EU and NA are the Global versions?
 

MarukuV

Member
May 13, 2021
22
3
I'm from the Philippines. Yes, I had the nvbackupui warning too. I'm just wondering if the India version can be converted to Global version. Seeing the other threads EU and NA are the Global versions?
no matter what rom you use or flash.. still those errors will persist. im torn now between selling my 9 pro so i can get one from us store.. my device is 3 days old only
 

rdaltonjay

New member
May 15, 2021
4
0
no matter what rom you use or flash.. still those errors will persist. im torn now between selling my 9 pro so i can get one from us store.. my device is 3 days old only
It's not a deal breaker for me since we can manually get 5G from the dialer. However, the functionality is there but it somehow needs an update from Oneplus to add 5G from the preferred network. I really hope Oneplus would fix these issues.
 

MarukuV

Member
May 13, 2021
22
3
It's not a deal breaker for me since we can manually get 5G from the dialer. However, the functionality is there but it somehow needs an update from Oneplus to add 5G from the preferred network. I really hope Oneplus would fix these issues.
im hoping for that too and with the release of oneplus 9 here in ph.. i hope the fix should be on its way soon..
 
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MarukuV

Member
May 13, 2021
22
3
It's not a deal breaker for me since we can manually get 5G from the dialer. However, the functionality is there but it somehow needs an update from Oneplus to add 5G from the preferred network. I really hope Oneplus would fix these issues.
what i fear is that this maybe a sign of exclusivity meaning the model should stay error free in china only.
 

MarukuV

Member
May 13, 2021
22
3
If this happens and no movement from Oneplus in the coming updates. Then I guess this will be my last Oneplus.
This is my first oneplus. I hope they will fix it. I'm giving my device 2 week sale period. If not. I'll keep it for maybe 3 years and will never buy china unit again.
 

90winkam

New member
Mar 12, 2019
1
0
Hi, may I know if this method works on Oneplus 9R?

The China variant of the OnePlus 9 series comes with Color OS instead of Hydrogen OS by default, which is not good news for geeks as Color OS has many limitations compared to Hydrogen OS. Recently, OnePlus has officially provided a way to switch between Color OS and Oxygen OS.

Please note that switching systems will clear all user data, so you better know what you're doing.

· Switch from Color OS to Oxygen OS

Download the downgrade package for the appropriate model and system and put it in the internal storage.

Installation steps: Settings - Software update - Settings (top right corner) - Select installation package - Select the previously downloaded downgrade package - Install now - Install now

If the Select installation package option is grayed out, it means that you now have a pending system update and you can choose to install or skip it.

To skip update: Settings - App management - App list - Menu (top right corner) - Show system - Software update - Storage usage - Clear data - OK - Disconnect all network connections

· Switching from Oxygen OS to Color OS
Download the downgrade package for the appropriate model and system and put it in the root directory of the internal storage.

Installation steps: Settings - System - System updates - Settings (top right corner) - Local upgrade - Select the previously downloaded downgrade package - CONFIRM

Just reboot your device after the installation is complete and have fun!

Downgrade packages:
Color OS for OnePlus 9
Oxygen OS for OnePlus 9
 

MarukuV

Member
May 13, 2021
22
3
If this happens and no movement from Oneplus in the coming updates. Then I guess this will be my last Oneplus.
This is my first oneplus. I hope they will fix it. I'm giving my device 2 week sale period. If not. I'll keep it for maybe 3 years and will never buy china unit again.
Hi, may I know if this method works on Oneplus 9R?
You need to use msmdownload tool for 9r
 

abdAlmuqtadir

Member
Jul 12, 2019
13
1
Hello everyone, I just ordered my OP9, LE2110. It is said that the phone is already runing Oxygen OS 11.2.2.2.LE25DA

All I want is a locked bootloader, non rooted phone, with Global firmware receiving OTA, can it be possible ? Thanks.
 

Braavos01

New member
Jun 6, 2019
2
0
The China variant of the OnePlus 9 series comes with Color OS instead of Hydrogen OS by default, which is not good news for geeks as Color OS has many limitations compared to Hydrogen OS. Recently, OnePlus has officially provided a way to switch between Color OS and Oxygen OS.

Please note that switching systems will clear all user data, so you better know what you're doing.

· Switch from Color OS to Oxygen OS

Download the downgrade package for the appropriate model and system and put it in the internal storage.

Installation steps: Settings - Software update - Settings (top right corner) - Select installation package - Select the previously downloaded downgrade package - Install now - Install now

If the Select installation package option is grayed out, it means that you now have a pending system update and you can choose to install or skip it.

To skip update: Settings - App management - App list - Menu (top right corner) - Show system - Software update - Storage usage - Clear data - OK - Disconnect all network connections

· Switching from Oxygen OS to Color OS
Download the downgrade package for the appropriate model and system and put it in the root directory of the internal storage.

Installation steps: Settings - System - System updates - Settings (top right corner) - Local upgrade - Select the previously downloaded downgrade package - CONFIRM

Just reboot your device after the installation is complete and have fun!

Downgrade packages:
Color OS for OnePlus 9
Oxygen OS for OnePlus 9
hmm! just to be clear, the link above #Color OS for OnePlus 9# should be downloaded if I want to Switch from Color OS to Oxygen OS ?
 

Yugendhra

Member
May 27, 2021
9
1
OnePlus 8 Pro
The China variant of the OnePlus 9 series comes with Color OS instead of Hydrogen OS by default, which is not good news for geeks as Color OS has many limitations compared to Hydrogen OS. Recently, OnePlus has officially provided a way to switch between Color OS and Oxygen OS.

Please note that switching systems will clear all user data, so you better know what you're doing.

· Switch from Color OS to Oxygen OS

Download the downgrade package for the appropriate model and system and put it in the internal storage.

Installation steps: Settings - Software update - Settings (top right corner) - Select installation package - Select the previously downloaded downgrade package - Install now - Install now

If the Select installation package option is grayed out, it means that you now have a pending system update and you can choose to install or skip it.

To skip update: Settings - App management - App list - Menu (top right corner) - Show system - Software update - Storage usage - Clear data - OK - Disconnect all network connections

· Switching from Oxygen OS to Color OS
Download the downgrade package for the appropriate model and system and put it in the root directory of the internal storage.

Installation steps: Settings - System - System updates - Settings (top right corner) - Local upgrade - Select the previously downloaded downgrade package - CONFIRM

Just reboot your device after the installation is complete and have fun!

Downgrade packages:
Color OS for OnePlus 9
Oxygen OS for OnePlus 9
Can you please post link for oxygen os for oneplus 8 pro please, so that i I'll follow these same steps on my oneplus 8 pro And downgrade!!
 

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  • 1
    It's not a deal breaker for me since we can manually get 5G from the dialer. However, the functionality is there but it somehow needs an update from Oneplus to add 5G from the preferred network. I really hope Oneplus would fix these issues.
    im hoping for that too and with the release of oneplus 9 here in ph.. i hope the fix should be on its way soon..
    1
    I'm from the Philippines. Yes, I had the nvbackupui warning too. I'm just wondering if the India version can be converted to Global version. Seeing the other threads EU and NA are the Global versions?
    You can find FAQ in the download link channel, where there will be region switch methods.
    1
    Hello everyone, I just ordered my OP9, LE2110. It is said that the phone is already runing Oxygen OS 11.2.2.2.LE25DA

    All I want is a locked bootloader, non rooted phone, with Global firmware receiving OTA, can it be possible ? Thanks.
    It's possible
  • 1
    Can you please reupload the Color OS Downgrade package for OnePlus 9 Pro to Google Drive or MEGA for me. I want to move from Oxygen OS to Color OS.

    I have tried for hours to download from the links you provided but I cant as I am not in China and it either requires Baidu, QQ or WeChat accounts with a Chinese mobile number.

    Thank you!
    I don’t have enough GDrive capacity, so I am uploading it to mega & androidfilehost. After uploading, the original message will be edited without notice.
    1
    Does the chinese variant will get the all bands of global variant after switch to oxygen os?
    1
    How can you tell whether you have Color OS or OxygenOS?View attachment 5303297
    Based on your build number, it stated that it is Oxygen OS indian version.
    1
    It's not a deal breaker for me since we can manually get 5G from the dialer. However, the functionality is there but it somehow needs an update from Oneplus to add 5G from the preferred network. I really hope Oneplus would fix these issues.
    im hoping for that too and with the release of oneplus 9 here in ph.. i hope the fix should be on its way soon..
    1
    I'm from the Philippines. Yes, I had the nvbackupui warning too. I'm just wondering if the India version can be converted to Global version. Seeing the other threads EU and NA are the Global versions?
    You can find FAQ in the download link channel, where there will be region switch methods.
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