iPhone
Q: wifi connection problems on i phone 4S, wi fi icon is blank, I've re set the phone through i tunes, backed up data etc still can't connect to my home wi fi. other devices have had no problems.
I am having problems connecting to wi fi. The wi fi icon is blank and in settings it seems to be locked. my phone is i phone 4S. I ve no problems connecting my other devices to wi fi. I've backed up my i phone through i tunes & restored it. I've reset network settings &restarted it. I'm going around in circles & getting nowhere, help!!
iPhone 4S
Posted on Jul 7, 2016 7:08 AM
by elcpu,Apple recommended
Photos for Mac
Try the steps in the linked article below but from what you describe it sounds like a defective wifi chip or antenna and may have to be tested at an Apple Store. Good luck.
If Wi-Fi is grayed out or dim on your iPhone, iPad, or iPod touch - Apple Support
Posted on Jul 7, 2016 6:58 PM