Preparing Your Mac for Repair, Sale, or Upgrade
Mac must be safely prepared before handing over to Apple, a buyer, or service provider.
Safely Preparing Your Mac for a Major macOS Upgrade
Major macOS upgrades can cause issues if preparation steps are skipped.
Fixing macOS Firewall Blocking Apps
Legitimate apps fail to connect to the internet or local network due to firewall restrictions.
Restoring Missing App Permissions in System Settings
Apps do not appear in Privacy & Security permission lists or cannot request access.
Resolving USB-C Port Issues on MacBook Pro
USB-C ports fail to recognize devices or charge inconsistently.
Checking Your Mac’s Battery Health and “Service Recommended” Alerts
macOS displays “Battery Service Recommended,” indicating reduced battery health or performance.
Fixing Audio Lag and Crackling Issues on Mac
Audio playback is delayed, distorted, or crackles during use.
Getting Your Mac to Detect Ethernet Connections
Ethernet cable connected but macOS shows no wired connection.