Official documentation

Reset All Settings on iPhone or iPad

Apple Support, 2026

Read on October 17, 2026

What it is: Apple's support article on the Reset All Settings option in iOS and iPadOS. It says what the reset keeps, when to restart first, and which settings it returns to defaults.
How much weight it carries: Official Apple documentation. It gives no statistics, and the list of reset settings may change between iOS versions, so check the current list on your phone before you rely on it.

Facts taken from this source

Apple says Reset All Settings returns settings to factory defaults and does not delete your photos, messages, apps or documents.
“Reset All Settings returns settings to factory defaults. Your photos, messages, apps, and documents aren't deleted.” (Opening paragraph)
Apple lists the keyboard dictionary among the settings that Reset All Settings removes or returns to defaults.
“Home screen layout and wallpaper Keyboard dictionary Location services preferences” (List of settings that the reset changes)
Apple gives the path to Reset All Settings as Settings, then General, then Transfer or Reset, then Reset, then Reset All Settings.
“Open Settings and tap General. ... Tap Reset, then tap Reset All Settings.” (Steps to reset all settings)
Apple says that if an iPhone has problems with Wi-Fi, Bluetooth or other system features, you should restart it first, and reset all settings only if restarting does not help.
“If your device has issues with Wi-Fi, Bluetooth, or other system features, restart it first. If restarting doesn't help, reset all settings.” (Opening paragraph)

Official documentation

Apple Support, 2026

Read on October 17, 2026

What it is: Apple's support article on the Reset All Settings option in iOS and iPadOS. It says what the reset keeps, when to restart first, and which settings it returns to defaults.
How much weight it carries: Official Apple documentation. It gives no statistics, and the list of reset settings may change between iOS versions, so check the current list on your phone before you rely on it.

Apple says Reset All Settings returns settings to factory defaults and does not delete your photos, messages, apps or documents.
“Reset All Settings returns settings to factory defaults. Your photos, messages, apps, and documents aren't deleted.” (Opening paragraph)
Apple lists the keyboard dictionary among the settings that Reset All Settings removes or returns to defaults.
“Home screen layout and wallpaper Keyboard dictionary Location services preferences” (List of settings that the reset changes)
Apple gives the path to Reset All Settings as Settings, then General, then Transfer or Reset, then Reset, then Reset All Settings.
“Open Settings and tap General. ... Tap Reset, then tap Reset All Settings.” (Steps to reset all settings)
Apple says that if an iPhone has problems with Wi-Fi, Bluetooth or other system features, you should restart it first, and reset all settings only if restarting does not help.
“If your device has issues with Wi-Fi, Bluetooth, or other system features, restart it first. If restarting doesn't help, reset all settings.” (Opening paragraph)