Hey guy, i just recently got the oneplus 7 pro, and immedately updated to os 9.5.7, now i would like to install the HydrogenOS instead, i downloaded the file from the site but using the local upgrade method won't let me as it says the file is older version and it can't downgrade. Is it possible and easy to downgrade from 9.5.7 so i can install H2OS. Thanks i advance for the help.
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Dear all,
I am waiting to arrive an unopened Oneplus 7 pro (GM1910) from China with, I guess Chinese ROM Hydrogen.
I just want to flash it and install the Global ROM Oxygen valid to my spanish language.
Is there any official way to do it from Oneplus?
Could you please tell me how to do it in the easiest and safe way? (links or whatever)
I have read about TWRP and Magisk but l don¡t know and undestand if I HAVE to do everthing they do in the tutorial videos.
Titokhan said :
GM1910 is the Chinese variant OnePlus 7 Pro running HydrogenOS (with GM21 build tag).
----> It is possible to flash both GM21AA (global) and GM21BA (EU) OxygenOS firmware on top of the HydrogenOS using the Local Upgrade method.
----> Bootloader unlocking is not necessary for switching to OxygenOS.
After conversion, you'll get OTA update from the respective branch.
I just want to have the properly ROM for my country (Spain) and get update normally in the future.
Thanks a lot in advance¡
As the quoted post implies, just download the firmware onto the the root of the internal SD card and use the local upgrade option found in the settings. Settings -> System -> System Update -> Top right gear icon -> Local Upgrade
-Grift- said:
As the quoted post implies, just download the firmware onto the the root of the internal SD card and use the local upgrade option found in the settings. Settings -> System -> System Update -> Top right gear icon -> Local Upgrade
Click to expand...
Click to collapse
I'm trying to do the same, but Local upgrade option doesn't work - selecting the file pops up an error message that downgrading is not allowed.
Any Idea's?
gonenb said:
I'm trying to do the same, but Local upgrade option doesn't work - selecting the file pops up an error message that downgrading is not allowed.
Any Idea's?
Click to expand...
Click to collapse
You will have to wait until the next version of the global rom is released. Looks like your copy of H2OS is newer than the OOS version you're trying to install.
see also this page:
https://piunikaweb.com/2019/06/11/n...o-global-international-model-without-pc-root/
i have a GM1910 too and its now running Oxygen OS 9.5.8 without any issues
I bought oneplus 7 pro model 1910 and it comes with oxyOS 9.5.8 with may security patch , is there any different between global and Chinese one when you root of flash ROMs
Hi all,
Checking many threads I understand that the easiest way to get Oxygen OS in Kb2000 (Chinese version) is trough the "local upgrade" options.
You download the last version of Oxygen OS from the Oneplus site, you put in the root of the phone and then it's easy to install with the tool in the system option.
But this it's not working if the version number that it's running on the phone it's newer or same of the version that you want to install. If you update, you can't do like this.
That's my explanation for everybody looking for this conversion.
My question is, use this guide:
Oneplus 8T (Cyberpunk Edition) - HydrogenOS (Google Apps, Theme, OTA Updates!)
Originality/HydrogenOS If you have a Chinese Cyberpunk Edition phone with OxygenOS, you'll notice that the Cyberpunk theme/assets are missing, and OTA updates lead to a boot loop. This guide will tell you how to restore the phone to its original...
forum.xda-developers.com
To restore an old version of hydrogen, apply only the first step, and then use the local upgrade it's ok? Am I right? Someday knows other way?
Thanks.
Sorry guys for being a noobie, almost a decade I never flashing elms or playing with android. Just started back with the Huawei Mate 30.
So I heard that there's a way to flash the global set version to China stock rom.
I'm kinda confused actually that how to flash a new set of rom if the bootloader are unable to unlock?
If let say can flash, does any of you guys know which Chinese stock rom to choose?
Please help...
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update: 08-07-2021
Manage to downgrade from EMUI 11 to EMUI 10.1.0.
Using Googlefier to install GMS, succeeded.
Waiting for someone to share how to flash CN firmware
Need help!
I have a Oneplus 7 Pro Global
For a distraction I installed the rom 12 beta (India)
Now the device does not update anymore, I cannot go back to stock, the bootloader does not accept being unlocked, even with the options set in the device settings, even with the drivers installed, the MSM tool does not detect the device.
I do not know what else to do.
If anyone can help me, I appreciate it.
Hi,
There was a post in the Oneplus community about how to roll back using downgrade firmware directly from update, so choose your model from the list below and save it to your root storage.
Want to go back to Android 11? Download the Rollback package from the links below (please open this thread on your browser to access the links):
OnePlus 7 (IN)
OnePlus 7 (EU)
OnePlus 7 (GLO)
OnePlus 7 Pro (IN)
OnePlus 7 Pro (EU)
OnePlus 7 Pro (GLO)
yassine2217 said:
Hi,
There was a post in the Oneplus community about how to roll back using downgrade firmware directly from update, so choose your model from the list below and save it to your root storage.
Want to go back to Android 11? Download the Rollback package from the links below (please open this thread on your browser to access the links):
OnePlus 7 (IN)
OnePlus 7 (EU)
OnePlus 7 (GLO)
OnePlus 7 Pro (IN)
OnePlus 7 Pro (EU)
OnePlus 7 Pro (GLO)
Click to expand...
Click to collapse
I've tried this before, but the device gives an error: Verification Failed
In every ROM file I try to install.
Have you tried this one?
If you still have the same problem, open the txt file in your zip and change the verification line from 0 to 1.
yassine2217 said:
Have you tried this one?
If you still have the same problem, open the txt file in your zip and change the verification line from 0 to 1.
Click to expand...
Click to collapse
Wow my friend!
Installing your APK is what worked!
Thank you so much!!!
Before installing the APK, my Oneplus didn't recognize any rom anymore, no matter what it was.
Thank you very much indeed!
You saved my device!
Hello. I installed Android 13 and I am not satisfied. I would like to return to Android 12. I understood that it is possible to downgrade by downloading the related file for Android 12 which will be placed in the root directory of the phone and then downgrade from the local installation. Oneplus support told me that they are not allowed to help me... Can you help me with a link where I can download the official, stock version of Oxygen 12? Has anyone successfully done this before? Thank you.