How to Fix the iPhone 4S Wifi Problems After iOS 7 Update

A number of iPhone 4S owners these days posted their Wifi problems to Apple discussion forums or Apple’s support forums, mentioning that they encountered the grayed out Wi-Fi button or "unable to connect" message many times after they upgraded the iPhone 4S to iOS7. They complained the grey-out or dim Wi-Fi button issues only happen after the iOS 7 update. If this occurs, the Wifi option in the iPhone 4S is unavailable, so when 4S owners tap the Settings > Wi-Fi, trying to turn on the Wi-Fi, the iPhone 4S fails to respond. According to some reports, the annoying Wi-Fi problem for the iPhone 4S may be caused by the iOS 7. There are some useful solutions to fix the iPhone 4S Wi-Fi connection problem below.

solve iphone 4s wifi issues on iOS 7

Troubleshooting 1:

Turn off the airplane mode by tapping Settings > Airplane Mode, then do the network resetting by tapping Setting > General > Reset > Reset Network Settings, and finally restart the iPhone 4S.

Note: If you reset the network setting, all recorded data will be removed, such as the Bluetooth pairing records, Wi-Fi passwords, VPN as well as the APN settings.

Troubleshooting 2:

You also can try this Wifi solution for iPhone 4S: Setting > General > Reset > Reset All Settings.

Note: This troubleshooting may fix the Wifi problem, but it will remove all of your preferences.

Troubleshooting 3:

If you have tried the above solutions, but still face the iPhone 4S Wifi issue, you can check if your 4S is upgraded to the newest available software. You can restore the iPhone 4S after checking the software updates in Apple iTunes.

Note: Restoring the iPhone 4S as a new phone is a slow process and it will reset your 4S to the factory setting. But you need to reload all your contacts or media information to the iPhone 4S after connecting your device to the computer.

Troubleshooting 4:

Some forums threads suggest another solution to fix the "gray out" iPhone 4S Wifi issue: placing the iPhone 4S in a refrigerator or freezer for several minutes, for they considered the 4S WiFi issue after iOS 7 update is caused by the heating issues.

Note: The lower temperature in the refrigerator or freezer may cool down the heating WiFi radio chip and will temporarily solve the WiFi problem for iPhone 4S, but the warm and cool temperature shift between the refrigerator or freezer and the room may cause the potential damage to your iPhone 4S.

Troubleshooting 5:

If the Wi-Fi switch is greyed out or dim on the iPhone 4S after you do the iOS 7 update, it may be related to the software problem rather than hardware problem. Therefore, in order to get your 4S WiFi working again, you can downgrade the previous iOS to resolve the problem for your handset.

Troubleshooting 6:

If the iPhone 4S Wifi connectivity trouble is still unable to be worked out, you can contact Apple Customer Service for the service options or visit the Apple Store for the direct solution.

If you have iPhone 5S or iPhone 5, you can check How to Fix the iPhone 5S/5 Wifi Problems. Or if you have any other Wi-Fi issues on your smartphone, let us know in the comments below.

  1. BY lauren

    my wifi click isn’t grey out but i cant use wifi anywhere accept like 2 meters from the box. i have rung my broadband provider and they confirmed it wasn’t the wifi, it was the phone. i have phone apple and they said that i would need to reset my phone. but im just looking around to see other things to try because i dont want to reset my phone. i have reset my network settings and nothing has worked. i have also reset all my settings.
    how do i downgrade my ios?

  2. |

    I enjoy the efforts you have put in this, thanks for all the great blog posts.

    • BY kaye


  3. BY Hamza Sheikh

    My wifi for iphone 4s is not working, the wifi button is unclickable and greyed out. i’ve resetted my phone.

  4. BY Toqeer

    After updating my 4S to the latest OS 7, the wifi still didn’t work. kindly help me for solution.

  5. BY dkl

    First determine if iphone or router issue. After 18 months without problems my iphone stopped connecting to my home wifi. Two desktops, two iPads and one laptop continued to connect just fine. So I assumed iphone problem. Went to apple store, iphone connected to apple wifi. Genius bar said problem with router or internet provider. After returning home, iphone still did not connect to home wifi. Called Applecare-iphone rep. Problem with internet provider. Contacted Att–problem with iphone. Contacted Extended warranty on iphone-problem with iphone. Replacement being sent. Then went to next door neighbor’s home, iphone connected to their wifi. Called applecare again–after talking to iphone rep, was transferred to WIRELESS CONNECTION REP. In 10 minutes, my iphone was reconnected to wifi in my home. Problem with my Apple Time capsule router was not randomly giving out a new ip address for my iphone. No one knows why it stopped doing this. But resetting my Time Capsule by:
    Click spotlight on right corner of iMac
    Type Airport (hit return)
    Click on picture of time capsule
    Hit Edit
    Hit Network
    Should say DHCP or Nat
    Mine said Off (Bridge Mode)
    This limited random ip addresses from being authorized, therefore my iphone had no ip address to connect to router. Not sure why this is the first time problem occurred, but problem fixed with help of Applecare Wireless Connection rep. Note I spent 5 days dealing with Apple Genius Bar, Applecare, ATT and Warranty rep all convinced it was an iphone problem Did all the normal, reset network, power off, renew lease, Was able to get check mark on network, but no wifi signal in left corner. Got closer to router and got wifi signal but no access to internet. Was ready to scream. Applecare wireless solved my problem in 10 minutes. Confusions was other devices continued to access wifi in my home. Love my apple again.

  6. BY renaissance

    Nope hair dryer didnt work for me. Neither other solutions.
    wifi is still dead. it is time to buy a new iphone.

  7. BY chiboy

    the hair dryer work for me but it donsnt last long , even i went to repair it but the man said no grantee but it works for some days , how can i prevent the problem , i bought the phone second hand , i dont know is like that , just that i love to use the phone

  8. BY Syed Tahir

    when I update my Iphone 4 ………. Icon appear Itunes cant open anything

  9. BY Clark
    | really works .the freezer thing.

    • BY Mohammed

      I have tried this process 3-4 times. The only problem is, in reality the wifi chip is damaged. U may think it works but it really doesn’t, trust me. I switched my phone on and the wifi icon was enabled, I was able to on and off the wifi, but the phone only recognised my ee box , I put my password and you’ll never guess what happened, it connected the wifi icon was coming on and off, so it’s basically not catching the connection properly. I tried going on safari, but it never worked, Apple should do something, this is a problem with the phone, I have noticed that my phone overheats quick. It may of worked for some, but it never worked for me, unfortunately