iPhone 4s battery drain and greyed wifi issues

I have exactly the same issue as mentioned above, on two iPhone 4S phones. My wife's phone is the same as mine. She has 6.1.3 and her phone is fine. My phone started having wifi connectivity issues a few weeks ago. I read the Apple forums, performed the suggested "fixes" including a software restore, and the malfunction persisted. I called Apple support and they were surprised about my issue. They suggested I turn on Airplane mode and Do Not Disturb and power down my phone for 15 minutes. I tried this and it worked for about 24 hours, then the problem returned. I then called the Verizon support line. They sent me a replacement phone. I set it up and it was working perfectly. Within 30 hours the probem returned, on a different device.

Some are reporting that Bluetooth does not work with this issue. My blue tooth still works, on both devices.

I am confused. Is this a virus of somekind, a software issue, a hardware issue? Please help.

The wifi and bluietooth issues are DEFINITLEY a hardware issue---I had the same problems --took the phione to the Apple Store--they told me that the new OS had uncovered a heretofore unknown flaw in the wifi and bluietooth parts of the hardware--there is NO software fix----they will replace the phone for free if it is under warranty----if not they charge $199-----I - fortunatley --left with a new free 4S that works fine.

At the same time I was there they replaced 2 others---the iPad checkin software they use to set appointments has a special code word for the issue----it is well known among the repair guys-they didnt even look at the phone other than for the 'grayed out' wifi tabs--they are just not advertising the fact that they have this issue.....

My wife's phone is doing the exact same thing. iPhone 4s 64G and soon as ios7 was installed the battery life has gone down the drain (yes I did all the suggested fixes to cut down on the battery drain), but the battery just drains for no reason. It was at 100% this afternoon and now it is at 23% and the phone has been sitting on the dresser not doing anything. Also the Wifi is greyed out. The phone is mint and has always been in an otter box. I am not going to try to freeze or heat my phone, it is clearly something with the update to ios 7. My wife was so mad about the battery thinking it wa apples way of making people ugrade to a new phone, she went out and bought a Galaxy S4. I am also due for an upgrade, but if Apple is not going to do anything about this, I amy also look to another manufacturer as well after having an 3S, 4 and 4S.

My Wi-fi is greyed out and my battery does not last very long. I am constantly charging it and it gets hot when I use it. It's sad to see so many posts for the same thing. It's a bummer as I have been a loyal iPhone customer for many years. I wish that they would come up with an update to fix these issues before they run out of customers. I have been debating changing wireless plans but should probably consider changing phones.

I know what its like, i had the same issue where the wifi is greyed and battery starts to drain...

But ive fixed it sorta, but improved! Where i did the blow drier and freezer method and the wifi works, its been about 2mouths where wifi is off and not greyed,

If u want to fix this issue and its amazing what the battery is than before

Eg: 100% 8:30am

99% 10:30am

98% 11:00am

Etc...

And when i finish school which is 3.30pm the battery is only 90% where when it was greyed it was 40% after finishing school!

But if u do this blow drier method and freezer method then it will slove your issue and wifi will work again but its just temporary where it may only work for 1mouth etc...