How do I roll back to Nothing OS 3.1

Monish_vvA9DZAfoA

I have installed beta for NOS 4.0 but I need to roll back how do I do it without losing any data

Acid_css1754

Monish_vvA9DZAfoA sorry but your data will lose if you roll back.. if you want than backup whole your data than you can..

Monish_vvA9DZAfoA

How can I back it up

Acid_css1754

Monish_vvA9DZAfoA go for Google drives for chats and for videos and photos can use Google photos.. and your contact number and call logs so go to settings and search backup there is option to backup apps and messages and call log…

Anonymous903

Monish_vvA9DZAfoA Use the cable in the box to transfer everything to your old phone