Need to revert to Android 9

[Zacabeb]

I need to roll back my Xperia 1 to Android 9, because the Android 10 update is broken beyond acceptability.

Is there anything Sony Mobile can do to help in making this as painless as possible? I basically need to do a software repair but with the last Android 9 build released.

If not, I'm going to have to go back to my old phone and go through a world of BS to get a refund for the Xperia 1 (I have to prove to the retailer the phone cannot be repaired, which is a nightmare).

[Yekollu]

what did the update break? Did you perform a hard reset?

[Zacabeb]

It broke:

* The app switcher. When pressing Home button, open apps disappear from the list until another app is opened. Some apps get stuck in the list even after closing them

* Color Management often fails to initialize when booting the phone, causing grossly oversaturated color, too high gamma, and blueish grayscale

* The phone sometimes becomes unresponsive in bundled apps, e.g. Chrome

* Increased battery consumption

* Poorly chosen font style for the app titles (should be slightly condensed) (Google's fault)

* Poorly chosen colors in light/dark themes (maybe Google's fault)

I am going to attempt a full system restore, but I have doubts it will solve any of the above.

[Daniel1017]

I'm got a few same problem as u list out too after update to Android 10… specialist above 2 of that make me feel so annoying…

This update truly broken ever n me find out have another problem too…

Stamina mode will auto on even battery percentage still 90% ++ but my setting is while 15% just activate…

Hope their fast release another patch fixing all problem…