I helped my fried to convert from Iphone to S4. I helped him with initial setup and gave some quick crash course. I visited him after a week and answered a few of his questions. I again visited him today after a week. But his Galaxy S4 GT-I9500 has developed a problem.
- The WiFi would stuck on "Turning on" if Bluetooth is switched off.
- The phone won't detect any WiFi. I tried with multiple AP with different settings and even without security.
- It detected the APs for few seconds once during this troubleshooting time of three to four hours.
- Resetting didn't help.
The phone is currently running Android 4.2.2. Any idea on how to make it detect the AP? I'll be trying to flash Android 4.3 via Odin tomorrow. I couldn't do it via Kies as it would say an unknown error occurred.
UPDATE: So I've pushed WiFi Analyzer and playing randomly with WiFi Settings and WiFi analyzer brings WiFi back for good. But same problem after factory reset. And again repeating above actions fixes it.