Question ColorOS to OxygenOS

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2tin

Member
Apr 2, 2021
5
5
Apparently the filename got renamed on the file sharing site, make sure you check the file name / checksum for your version

just download, put in root folder and do update with local source and locate the downloaded file in root folder.
version is DA

OnePlus9ProOxygen_22.I.05_OTA_0050_all_2103242250_downgrade_for_ColorOS_8b205ea5316a4923.zip
MD5: 0261ab7d047960525ce9562f860aef52


OnePlus9Oxygen_22.I.05_OTA_0050_all_2103242253_downgrade_for_ColorOS_cb409e1f8a70489e.zip
MD5: 9fd4b06925dd59348b05df75e758a8c9
 

sta3b

Member
Nov 2, 2019
23
10
any1 can confirm that its working ?
i got this screenshot from a dealer in china
 

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Mohan211

Member
Oct 9, 2012
38
7
Apparently the filename got renamed on the file sharing site, make sure you check the file name / checksum for your version

just download, put in root folder and do update with local source and locate the downloaded file in root folder.
version is DA

OnePlus9ProOxygen_22.I.05_OTA_0050_all_2103242250_downgrade_for_ColorOS_8b205ea5316a4923.zip
MD5: 0261ab7d047960525ce9562f860aef52


OnePlus9Oxygen_22.I.05_OTA_0050_all_2103242253_downgrade_for_ColorOS_cb409e1f8a70489e.zip
MD5: 9fd4b06925dd59348b05df75e758a8c9
Is this really as easy as updating as a local source without the need to unlock bootloader, etc.?
Sorry for the silly question I'm not too experienced with this.

EDIT: Also will this wipe my phones data?
 
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2tin

Member
Apr 2, 2021
5
5
Is this really as easy as updating as a local source without the need to unlock bootloader, etc.?
Sorry for the silly question I'm not too experienced with this.

EDIT: Also will this wipe my phones data?
Yes it will wipe your data, backup your data beforehand

source in Chinese
https://www.oneplusbbs.com/thread-5895784-1.html
no need to unlock bootloader
according to some other page, currently the IMEI is screwed but will be fixed in later version
flash at your own risk
 
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andixxx81

Senior Member
Apr 29, 2011
217
13
Yes it will wipe your data, backup your data beforehand

source in Chinese
https://www.oneplusbbs.com/thread-5895784-1.html
no need to unlock bootloader
according to some other page, currently the IMEI is screwed but will be fixed in later version
flash at your own risk
Imei still lost sir? DA is for India region is it? You already try it from ColorOS to this OOS? And already wipe data all after update from local update system?
 

evanxyj

Senior Member
Jan 3, 2015
176
17
Hangzhou, China.
What region sir for OOS? And ime still loosing?

What region sir for OOS? And ime still loosing?


Apparently the filename got renamed on the file sharing site, make sure you check the file name / checksum for your version

just download, put in root folder and do update with local source and locate the downloaded file in root folder.
version is DA

OnePlus9ProOxygen_22.I.05_OTA_0050_all_2103242250_downgrade_for_ColorOS_8b205ea5316a4923.zip
MD5: 0261ab7d047960525ce9562f860aef52


OnePlus9Oxygen_22.I.05_OTA_0050_all_2103242253_downgrade_for_ColorOS_cb409e1f8a70489e.zip
MD5: 9fd4b06925dd59348b05df75e758a8c9
Check this. Not confirmed by myself in terms of imei etc.
 
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yctsai88

New member
Apr 1, 2021
2
0
Is it possible to flash to DA first and then run local update in DA to switch to BA?
BTW, what is the consequence if the IMEI is messed up?
Thanks~
 

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