Wi-Fi Authentication Error? Restore Network Access
iPhone shows authentication error and fails to connect to Wi-Fi.
Hotspot Turning Off Automatically? Keep iPhone Connected
Personal Hotspot disables itself unexpectedly.
Screen Timeout Not Working? Adjust Display Settings
Screen does not turn off automatically after set timeout.
Not Receiving Calls? Restore iPhone Call Function
Incoming calls go straight to voicemail or never arrive.
Call Audio Problems? How to Fix iPhone Sound
You can’t hear the caller clearly, audio is distorted, or sound switches unexpectedly.
Random App Installations? Stop Unwanted Apps on iPhone
Apps appear on your iPhone without installing them manually.