Some users have reported issues connecting to Wi-Fi networks after upgrading to iOS 7 and above. If you are facing Wi-Fi networks issues after upgrading your iPhone, iPad or iPod Touch to iOS 7, here are few possible tips to resolve your problem.
1. Reboot your device: To reboot your device, press and hold the Sleep/Wake button on the top of your device until the Apple logo appears again.
2. Reset Network Settings: To reset network settings go to Touch Settings >> General >> Reset >> Reset Network Settings. Most of the time resetting of Network Settings resolves Wi-Fi issue in iPhone.
3. Switch on Airplane Mode: Go to Settings >> General >> Airplane Mode or to the Control Center and tap on ‘Airplane’ icon.
4. Check Router: Reset your router and turn Airplane Mode off. Your iPhone now will be to connect to the network. You can also try to remove password security of your Router to improve Wi-Fi connectivity.
5. Restore your iPhone as new: If you are still unable to solve Wi-Fi problem then it is better to restore your iPhone as new. However, you will lose all your data and jailbreak. To restore your device:
Connect your iPhone to the computer.
Launch iTunes from your iPhone.
Navigate to find the Summary tab select “Restore”.
Now, Select “backup” if you want.
Once the process is complete the iPhone will restart.
When your iPhone will restart you will find “Set Up You iPhone screen” option, select “Set up as a new iPhone”.
Follow the guide to jailbreak iOS 7 untethered