Any ideas why an Android 4.1.2 phone would stop being able to see some open wifi networks? Sometimes it will connect to the open network if I put in the name. With some open networks it sees the SS ID but is unable to connect. The phone has been factory reset several times. Even after a reset with no settings changed it still has the problem. I'm trying to figure out if it's a hardware problem with the phone or something in Android. Thanks.