The Wifi on my phone will not turn on at all. Even after a factory reset (many factor resets). So after looking around I thought rooting the phone and upgrading to Kit-Kat would help. But even after doing that, my phone still would tell me the phrase "turning on WiFi" and would never turn on.
So i flashed back to 4.3 and unrooted my phone to send it to Samsung. Samsung USA claims that they cannot take my phone b/c its a global phone based on the IMEI, but the problem sounded like a hardware issue because a light doesn't flash when i try to turn on the wifi.
LASTLY I went back to the people who sold me the phone, and they claim its a firm ware issue, and that i have to bring the phone back to 4.1 for it to work.
Is this wifi problem firmware or hardware issues? If its hardware, is there a way to make the phone 4.1 without rooting it?