when i surfing YouTube and also doing WhatsApp and surfing web browser then automatically slow down the network and stop the running video or don't sending the message from WhatsApp. this is occurring from last 15 days.please help me

when i searching the apps in play store then its showing.. install now...then i install it and after that show inable now but i click enable bottom but no effect

please give us oreo update in a5 2016and update the touch wiz home button hide

plz find the answ

after unlock the mobile showing something like the screenshot and then automatically unlock my device