I have a ZTE Score X500 and when I turn the wifi on, it turns back off after like 5 seconds. And when it does turn on for those few seconds, it doesnt even show any wifi networks. I know its not the router and stuff because my phone is the only phone thats doing it. Ive tried resetting the phone, Turning the phone on and off, Looking under the wifi sleep policy settings and making sure airplane mode isnt on. Any ideas on what I should do?