Why does the wifi on my S5 keep going on and off?

[Joaquin dung]

i have a question my galaxy s5

My galaxy s5 will turn on the mobile data for a couple seconds and go off again i have tried taking out the sim card and restarting it, but no fix

 

[Kel M]

Re: i have a question my galaxy s5

Take out the battery for a soft reset.