If I change back panel of my device i.e  Samsung A52,  then can it will hamper my mobile water and dust protection.. pleases clear  my doubt.

I don't know why you are not providing the #Samsung knock security in Samsung M series. Please provide the knock security in Samsung M serial phone/mobile.. at least provide only Samsung M31s mobile phone..

Sir i want to backup all the data in this mobile to my laptop including contact massage picture photo notes application data and so many so please guide me how to backup all the data