The iPad 2 remains a legendary piece of hardware, but staying functional in the modern era requires specific software versions. If you are looking to restore or refresh your A1396 GSM model, you need the exact firmware build to avoid installation errors. The Essential Download: iOS 9.3.5 for iPad 2 (GSM)

Disable Background App Refresh (Settings > General) to help the aging A5 processor keep up.

Most legacy apps in the App Store require at least iOS 9.0.

Plug your iPad 2 into your computer via the 30-pin dock connector. Select Device: Open iTunes/Finder and click the iPad icon. The "Alt/Option" Trick: On Windows : Hold the Shift key and click Restore iPad . On Mac : Hold the Option key and click Restore iPad .