How to downgrade from Android 11 to Android 9 in Samsung M31

[Nitin8090]

Do anyone know How to downgrade from Android 11 to Android 9 in Samsung M31... After update facing hang and restarting problem... I believe this is not motherboard or power IC issue this is Software issue... M & A series is hanging in android 10 and 11... 

[mdlp]

You can Uninstall android 11 upgrade

[mdlp]

As phone was released with Amdorod 10 so it can not be downgraded to android 9

[JackieChan]

You can do it by rooting you're device...but warranty will not applicable to rooted devices.

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible. 

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Ask questions).

Thank you for writing to Samsung.

Warm Regards, 
Samsung Customer Support