one ui beta

[Ni3Y]

should i backup before installing beta version

[Bajk10]

Backup if you want to revert back to Android 11 in case of any issues

[Ni3Y]

don't want to revert i m going to install beta oneui 4

[RαʝҽʂԋKυɱαɾ21]

STILL RECOMMEND TO TAKE BACKUP
FOR PRECAUTION !

[Sidhabhi]

Yes..its always advisable to take a backup of data when going for major updates

[darkrider]

Your primary and daily usage phones aren't advisable to join beta program
Becz they are more buggy and some apps aren't work properly

[Ananthu_krishna]

Always they advisable to back up the data...

But no need I think
I tested both one ui 3 and 4 but no loss in data