WiFi Stopped Working / Not turning on - Samsung S5

[AC Question]

Hi everyone,
The WiFi on my wife's Samsung S5 stopped working suddenly two days back. It will not turn on. There have been no updates or major software changes on the phones on the day when the wifi stopped working. I have tried the following so far:
1. Reset Settings
2. Safe Mode Boot

None of these worked. The Verizon store guys asked to perform a factory reset. I am unsure if that would be of any help. The phone's warranty is up. Please help.

 

[nahoku]

Well, I hate to admit it, but the Verizon guy is probably right. If the phone doesn't even work in Safe mode, the next step is a factory reset. Whether or not it'll work is anyone's guess. If it doesn't, then it might be a hardware problem requiring repair. Be sure to back up any data that's important to you before you factory reset.