Sir I have purchase Samsung Galaxy mobile A21S on 11 Oct 2020. In this phone double tab to wake up and always display on facility not available. I have talk to customer care they told me update will comes within three days after that above facility...
plz tell me the solution what to do for double tab function. don't try to suggest regarding take new phone and exchange it. very bad show. I m waiting for updates and I hope in future both the function will be work.