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Please read this if you considering unlocking the boot loader or rooting your phone.

Important information

Please note that you may void the warranty of your phone and/or any warranty from your operator if you unlock the boot loader. You should only unlock the boot loader of your phone if you are an advanced user with good knowledge of the technology and risks involved.

For more information go here http://unlockbootloader.sonymobile.com/

Please also note

The Sony Xperia support team will not be able provide any support, related to unlocking the boot loader or rooting your phone.

We also recommend you to read the below blogposts.

http://developer.sonymobile.com/wp/2011/03/29/unlocking-the-boot-loader-in-the-new-xperia%e2%84%a2-smartphones/

http://developer.sonymobile.com/wp/2011/04/14/option-to-unlock-the-boot-loader-now-available-for-advanced-developers/

http://developer.sonymobile.com/wp/2011/09/28/sony-ericsson-supports-independent-developers/

Best regards
Sony Xperia support team

How to downgrade from oreo

One time poster
Message 21 of 43
3,225 Views
Message 21 of 43

New update oreo

I hate the new upgrade can I remove it and go back to the version before it please

Some of my apps don't n work now 

Message 22 of 43
3,211 Views
Message 22 of 43

Re: New update oreo

Don't complain...., be happy !
Remove the app, switch phone off, switch phone on and re-install the deleted app again.

One time poster
Message 23 of 43
3,161 Views
Message 23 of 43

Downgrade to Nougat

Hello everybody .... one question please, there is a link to download the previous version of FW for XZ Nougat version!? I need Customized IT version if possible ... Thank you.

Highlighted
Message 24 of 43
3,075 Views
Message 24 of 43

Re: Downgrade to Nougat

Hello! I also have problems with Oreo. My cell phone is the Xperia X. I have it a month ago. I want to go back to 7.1.1.

I have two questions regarding using flashtool or xperifirm to go back:

1- I will be able to return to exactly the same Nougat version I had before installing Oreo?

2- My cell phone has a month, that is, it is guaranteed. Can I lose my guarantee if I use flashtool or xperifirm to go back to Nougat?

Thank you very much.

Greetings.

Jorge Iruzubieta

Moderator
Message 25 of 43
3,070 Views
Message 25 of 43

Re: Downgrade to Nougat

@jorgeiruzubieta

1- If you can find the exact firmware lying somewhere on the interwebs, then yes you can.

2- No, in most of the cases. As long as you didn't root your phone or unlock the bootloader. But this depends on your warranty terms, you should revise it before you proceed.



Feel free to kudo this post or mark it as solution so that other users facing the same issue can find it

Disclaimer: Moderators are not affiliated with or work for Sony Mobile, their posts represent their own opinions and views. Click here to find out more about the different roles in the community.

Message 26 of 43
3,053 Views
Message 26 of 43

Re: Downgrade to Nougat

Thank you very much for answering!

I have a question about which version should install since if we see in the following page:

 

http://www.xperiablog.net/category/xperia-x-series/

 

And we enter the following links:

 

 http://www.xperiablog.net/2017/12/05/xperia-x-and-x-compact-receive-december-2017-security-patches-3...

 

http://www.xperiablog.net/2017/11/08/xperia-x-compact-receives-november-2017-security-patch-34-3-a-0...

 

 http://www.xperiablog.net/2017/10/04/xperia-x-and-x-compact-update-adds-october-android-security-pat...

 

 

We can see that we have different versions of different launch month and different regions.

 

December:

34.3.A.0.252 Germany Generic

 

November:

34.3.A.0.244 Australia Generic

 

October:

34.3.A.0.238 Latin América

 

 Which one should I install? I live in Argentina, Latin America. Can I install the one in December, which is the last one but is from Germany, or should I respect my zone and install the one in October (Latin America)?

Thank you very much.

Regards

Jorge Iruzubieta 

Visitor
Message 27 of 43
2,541 Views
Message 27 of 43

Roll back to 7

Откатить на 7

 

Roll back to 7

 

-GT

Visitor
Message 28 of 43
2,480 Views
Message 28 of 43

How to return to android 7?

I do not like at all what this update has, the phone was better for me in nuggat

Regular
Message 29 of 43
2,462 Views
Message 29 of 43

Re: How to return to android 7?

You'll need to unlock the bootloader and flash the previous version via flashtool. 

Moderator
Message 30 of 43
2,436 Views
Message 30 of 43

Re: How to return to android 7?

@Darkweeally @Jeffercs96

Flashing a previous firmware is an unofficial method that you may do at your own risk (you can brick your phone if you mess it up), but it definitely doesn't require you to unlock the bootloader.



Feel free to kudo this post or mark it as solution so that other users facing the same issue can find it

Disclaimer: Moderators are not affiliated with or work for Sony Mobile, their posts represent their own opinions and views. Click here to find out more about the different roles in the community.