Flash Chinese Hydrogen version to Oxygen

[kroghet]

Hi,
I have bought a Chinese version of the Oneplus 7t, and it comes with Hydrogen. I had looked at different guide that suggested that it was possible to load the Oxygen onto the phone in Root, and install Oxygen, but it gives me the following error: "The version of your selected packet is lower than that of the current system. To avoid booting up failure, downgrading is not allowed"

I have disabled updating the phone when I got it, so it's running: Hydrogen 10.0.1.HD65
I downloaded the latest version of Oxygen from Oneplus: OnePlus7T Oxygen OS 10.0.3 HD65AA

These were the steps I tried to follow, but got stuck at step 3. Hope anyone there can help me

1) One needs to download the official firmware from OP website
2) Put the downloaded file to the phone's storage
3) In the settings choose System Update->Parameters->Local Update->Select the transferred file ->Install
4) Reboot the phone
5) Success?

 

[dynamike27]

You need to install the 10.0.4 one, 10.0.3 doesn't work. Take the same steps as you would above.
https://forum.xda-developers.com/showpost.php?p=80591487&postcount=46

 

[kroghet]

That did the trick

You need to install the 10.0.4 one, 10.0.3 doesn't work. Take the same steps as you would above.
https://forum.xda-developers.com/showpost.php?p=80591487&postcount=46

That did the trick, thanks for the help

 

[android2819]

Hi,
I have bought a Chinese version of the Oneplus 7t, and it comes with Hydrogen. I had looked at different guide that suggested that it was possible to load the Oxygen onto the phone in Root, and install Oxygen, but it gives me the following error: "The version of your selected packet is lower than that of the current system. To avoid booting up failure, downgrading is not allowed"

I have disabled updating the phone when I got it, so it's running: Hydrogen 10.0.1.HD65
I downloaded the latest version of Oxygen from Oneplus: OnePlus7T Oxygen OS 10.0.3 HD65AA

These were the steps I tried to follow, but got stuck at step 3. Hope anyone there can help me

1) One needs to download the official firmware from OP website
2) Put the downloaded file to the phone's storage
3) In the settings choose System Update->Parameters->Local Update->Select the transferred file ->Install
4) Reboot the phone
5) Success?

Hi. I'm also looking to do the exact same thing on a CN OP7T. Can you confirm it works without any issues? No needing to use adb, unlock bootloader etc? Its the first phone i hear of in which changing OS is too straightforward.

Booting into recovery after flashing works? Also, can you please check for me if it says Play Store Certified under Play Store Settings? I'm thinking maybe it won't carry over from CN ROM?

 

[kroghet]

Hi. I'm also looking to do the exact same thing on a CN OP7T. Can you confirm it works without any issues? No needing to use adb, unlock bootloader etc? Its the first phone i hear of in which changing OS is too straightforward.

Booting into recovery after flashing works? Also, can you please check for me if it says Play Store Certified under Play Store Settings? I'm thinking maybe it won't carry over from CN ROM?

I just followed the steps, no need to use adb, or unlock bootloader. I just installed the file, and then restarted the phone like it asked me. Then i just did a factory reset, and my play store is certified. Just make sure to not update your phone with Hydrogen when you first start it up.

 

[Zmajvitez]

Getting mine in a few days. Will go with all the above steps and post here end result but I don't see there will be any issues.

 

[android2819]

I just followed the steps, no need to use adb, or unlock bootloader. I just installed the file, and then restarted the phone like it asked me. Then i just did a factory reset, and my play store is certified. Just make sure to not update your phone with Hydrogen when you first start it up.

I suppose both Hydrogen and Oxygen are on the same version 10.0.4? So downgrading wouldn't work, but what about switching from the same version to the other?

 

[Zmajvitez]

Just did this myself...took me 15 minutes when I had the file downloaded.
Super easy and super happy that I spent 425$ for this device

---------- Post added at 02:32 AM ---------- Previous post was at 02:31 AM ----------

I suppose both Hydrogen and Oxygen are on the same version 10.0.4? So downgrading wouldn't work, but what about switching from the same version to the other?

I don't think thats possible. You might need for next release to upgrade and switch.
I think you can enable it if you root the device. But don't take my word for it. Maybe someone else will answer this one.

 

[android2819]

Just did this myself...took me 15 minutes when I had the file downloaded.
Super easy and super happy that I spent 425$ for this device

---------- Post added at 02:32 AM ---------- Previous post was at 02:31 AM ----------



I don't think thats possible. You might need for next release to upgrade and switch.
I think you can enable it if you root the device. But don't take my word for it. Maybe someone else will answer this one.

That's great hearing it. I'll do it too as soon as i receive my device.

If you don't mind me asking, what HydrogenOS version did your device come preinstalled with and where did you buy it from at that price? 128/8 version?
Thanks!

 

[Zmajvitez]

I think it was 10.0.1 Hydrogen
But yeah, just used the file posted on this page and worked as a charm.
I bought it in China from there official OnePlus website.. and 256/8 ????

 

[jakbkk]

got mine last Saturday fresh from OP factory and downloaded USA rom but got lower version error so i downloaded again from UK OP support webpage and that did it for me.

PS i looked around just now and noticed that the ROMs on OP support webpages vary from country to country. HKG still has 10.0.3 like the US while Thailand has 10.0.4 like the UK.

OP 2 -> OP 3T -> OP 7T (all H2OS -> O2S converted) :-}

 

[android2819]

I think it was 10.0.1 Hydrogen
But yeah, just used the file posted on this page and worked as a charm.
I bought it in China from there official OnePlus website.. and 256/8

You mean you were in person in China? Or just ordered online from oneplus CN store and shipped to your country? Because i may be wrong, but i don't think they allow you to purchase and ship to another country, considering they do have their store in my country as well. But i'm not sure. I only want the 256GB version and it's only available in China and India from what i see. So it's basically Aliexpress or other sites such as Gearbest, Wondamobile, etc..

But maybe i can order straight from them? What about warranty? Does it cover only China?

Edit: There is a discussion on another thread about a possible Green Tint Display Issue when Brightness is less than 10-15%, appearing on upper right part of the display, most visible on dark screens. Can you confirm if CN version has the same issue? Do you notice anything at all?

Thanks!

---------- Post added at 06:20 PM ---------- Previous post was at 06:13 PM ----------

got mine last Saturday fresh from OP factory and downloaded USA rom but got lower version error so i downloaded again from UK OP support webpage and that did it for me.

PS i looked around just now and noticed that the ROMs on OP support webpages vary from country to country. HKG still has 10.0.3 like the US while Thailand has 10.0.4 like the UK.

OP 2 -> OP 3T -> OP 7T (all H2OS -> O2S converted) :-}

In my experience on owning few android products over the years(samsung only), this is the first ever device in which changing country dependant ROM is as straightforward as ever. I haven't found any other manufacturer that comes close to OP experience. Literally all other manufacturers i know of require you to unlock bootloader, use ADB, fastboot, input comands and so forth.

I have yet to look into custom ROMs for OP, but i'm sure it's still more straightforward than competition.

Edit: There is a discussion on another thread about a possible Green Tint Display Issue when Brightness is less than 10-15%, appearing on upper right part of the display, most visible on dark screens. Can you confirm if CN version has the same issue? Do you notice anything at all?

 

[jakbkk]

---------- Post added at 03:00 AM ---------- Previous post was at 02:54 AM ----------

[/COLOR]

You mean you were in person in China? Or just ordered online from oneplus CN store and shipped to your country? Because i may be wrong, but i don't think they allow you to purchase and ship to another country, considering they do have their store in my country as well. But i'm not sure. I only want the 256GB version and it's only available in China and India from what i see. So it's basically Aliexpress or other sites such as Gearbest, Wondamobile, etc..

But maybe i can order straight from them? What about warranty? Does it cover only China?

Edit: There is a discussion on another thread about a possible Green Tint Display Issue when Brightness is less than 10-15%, appearing on upper right part of the display, most visible on dark screens. Can you confirm if CN version has the same issue? Do you notice anything at all?

Thanks!

---------- Post added at 06:20 PM ---------- Previous post was at 06:13 PM ----------



In my experience on owning few android products over the years(samsung only), this is the first ever device in which changing country dependant ROM is as straightforward as ever. I haven't found any other manufacturer that comes close to OP experience. Literally all other manufacturers i know of require you to unlock bootloader, use ADB, fastboot, input comands and so forth.

I have yet to look into custom ROMs for OP, but i'm sure it's still more straightforward than competition.

Edit: There is a discussion on another thread about a possible Green Tint Display Issue when Brightness is less than 10-15%, appearing on upper right part of the display, most visible on dark screens. Can you confirm if CN version has the same issue? Do you notice anything at all?

thanks for your comment. yes, that is the no.1 reason i switched to OP from other brands (i have used IOS, Meizu, HTC, Sony and also MS WinPhone in the past). the simplicity and ease of conversion was why i bought the OP2 at the local OP store when they had one before. my Chinese is just so-so and feel more comfortable with English/Google apps.

as for the GREEN TINT, i just adjusted my brightness down to the lowest level where i can still read things (i don't see any numerical %) but i don't experience any issue. i have my phone in Nuanced Dark Theme but also tried with the brighter Illuminating Light theme.

imgur.com/a/4il3ET2

i like the simple Nokia's Z Launcher so i just keep on using it even though it's not updated any more.

PS. i guess i haven't reached the required 10 posts yet so my images don't show so i am just sharing the link for now.

 

[Zmajvitez]

got mine last Saturday fresh from OP factory and downloaded USA rom but got lower version error so i downloaded again from UK OP support webpage and that did it for me.

PS i looked around just now and noticed that the ROMs on OP support webpages vary from country to country. HKG still has 10.0.3 like the US while Thailand has 10.0.4 like the UK.

OP 2 -> OP 3T -> OP 7T (all H2OS -> O2S converted) :-}

Yup, I have noticed that as well. Some countries get updates sooner than later... I guess you can just always be on the lookout and download what you need and if you don't want to wait for your country to get an update

---------- Post added at 03:50 AM ---------- Previous post was at 03:42 AM ----------

You mean you were in person in China? Or just ordered online from oneplus CN store and shipped to your country? Because i may be wrong, but i don't think they allow you to purchase and ship to another country, considering they do have their store in my country as well. But i'm not sure. I only want the 256GB version and it's only available in China and India from what i see. So it's basically Aliexpress or other sites such as Gearbest, Wondamobile, etc..

But maybe i can order straight from them? What about warranty? Does it cover only China?

Edit: There is a discussion on another thread about a possible Green Tint Display Issue when Brightness is less than 10-15%, appearing on upper right part of the display, most visible on dark screens. Can you confirm if CN version has the same issue? Do you notice anything at all?

Thanks!

---------- Post added at 06:20 PM ---------- Previous post was at 06:13 PM ----------



In my experience on owning few android products over the years(samsung only), this is the first ever device in which changing country dependant ROM is as straightforward as ever. I haven't found any other manufacturer that comes close to OP experience. Literally all other manufacturers i know of require you to unlock bootloader, use ADB, fastboot, input comands and so forth.

I have yet to look into custom ROMs for OP, but i'm sure it's still more straightforward than competition.

Edit: There is a discussion on another thread about a possible Green Tint Display Issue when Brightness is less than 10-15%, appearing on upper right part of the display, most visible on dark screens. Can you confirm if CN version has the same issue? Do you notice anything at all?

Yes, lucky for me I am currently in China and thats why the price is what it is and I got the 256 version.
If you are in Australia I can bring you one as I am going back there in 2-3 weeks.

So yes, the warranty is only for China. Which means if something gets broken you will need to send it to the country you bought it in for it to get fixed. As I have some family here in China by some random luck, I can ship this phone back to them and they can take care of it for me. I hope that will not happen though
But that is the same case for my Pixel 2 that I bought in the USA. I just had some issues with it and they are asking me to send it to the USA in order for it to get fixed. So now I have to send it to my cousin and then he will send it to Google... like there is no Google store in Australia


Happy to report that there is no green tint on my device


Also, it is very funny that 7T has a different price (significantly more expensive) in Hong Kong and the only "benifit" from buying it there is that it will run Oxygen straight from the box.

 

[BoboBrazil]

Just did this myself...took me 15 minutes when I had the file downloaded.
Super easy and super happy that I spent 425$ for this device

---------- Post added at 02:32 AM ---------- Previous post was at 02:31 AM ----------



I don't think thats possible. You might need for next release to upgrade and switch.
I think you can enable it if you root the device. But don't take my word for it. Maybe someone else will answer this one.

Where did you buy for $425?

 

[Zmajvitez]

Where did you buy for $425?

China - official OnePlus store.

 

[omarbengy]

You need to install the 10.0.4 one, 10.0.3 doesn't work. Take the same steps as you would above.
https://forum.xda-developers.com/showpost.php?p=80591487&postcount=46

I updated the hydrogen software and now i can't change it to oxygen even after downloading this last version,so what should i do

 

[shafy_eg]

Still can't flash 10.0.4 Oxygen

One of my friends proceed with auto update on Hydrogen to his brand new oneplus 7t and after that even with Oxygen 10.0.4 he still get the error message lower version.

Can anyone help him please?

 

[omarbengy]

You need to install the 10.0.4 one, 10.0.3 doesn't work. Take the same steps as you would above.
https://forum.xda-developers.com/showpost.php?p=80591487&postcount=46

is there any new update because it didn't work for me ?

 

[Hemant]

Yup, I have noticed that as well. Some countries get updates sooner than later... I guess you can just always be on the lookout and download what you need and if you don't want to wait for your country to get an update

---------- Post added at 03:50 AM ---------- Previous post was at 03:42 AM ----------



Yes, lucky for me I am currently in China and thats why the price is what it is and I got the 256 version.
If you are in Australia I can bring you one as I am going back there in 2-3 weeks.

So yes, the warranty is only for China. Which means if something gets broken you will need to send it to the country you bought it in for it to get fixed. As I have some family here in China by some random luck, I can ship this phone back to them and they can take care of it for me. I hope that will not happen though
But that is the same case for my Pixel 2 that I bought in the USA. I just had some issues with it and they are asking me to send it to the USA in order for it to get fixed. So now I have to send it to my cousin and then he will send it to Google... like there is no Google store in Australia


Happy to report that there is no green tint on my device


Also, it is very funny that 7T has a different price (significantly more expensive) in Hong Kong and the only "benifit" from buying it there is that it will run Oxygen straight from the box.

Quite surprised myself too that prices in HK are that high. Generally its the other way round. But i might do the same as you since i am based in China and will install the HK ROM if i decide to move away from IOS.