Problem: some users find that buttons on their smartphones work only after they tap on them twice or more than twice. These buttons should normally function with one tapping only.
Why does it happen & what's its solution?
Solution: This problem is caused by clogging of 'Storage' & 'Memory.'
Go to:
1. Settings-> Battery and device care-> Storage -> click on 'Gallery' etc beneath 'Trash' -> 'Empty'
2. Settings-> Battery and device care-> Memory -> click on 'Clean now'
