S4 keeps rebooting not turning on.

[Rsa Didar Hsn]

My S 4 having provlem with some unknown stuff like automatically it get data and wifi on . start to browse automatically and download apps unjust. it keeps on warn me some apps has stopped and so on . so I have rebooted my phone couple of times and now it stuck keeps on rebooting not turning on at all.i pulled out and reinserted battery few times still not working.what could the suggestion to get fixed please.

 

[anon(632115)]

If it keeps rebooting your power button may be stuck. Try removing and reinsert the battery. If it starts without you pressing the power button, the button is stuck. Tapping the device on a hard surface should free it but you should dismantle and clean it if that's the problem. If you still have problems download Samsung Smart Switch, on your PC, select emergency firmware recovery and follow the instructions. Have your USB cable handy. Do not do this if you are rooted or running a custom ROM