Update your iPhone to the latest iOS
Step 1 of 3
Open Settings › General › Software Update
The iPhone checks for the latest version.
Open Settings › General › Software Update
The iPhone checks for the latest version.
Tap Update Now
Enter your passcode if asked.
Plug in the charger and wait
The iPhone restarts by itself. Don’t use it until it finishes (15–45 minutes).
Did it work?
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From basic to technician
BasicUpdate your iPhone to the latest iOSYou are here
FixiPhone storage fullTechnical details (for the curious)
Why updates matter
iOS updates close security holes used to break into iPhones through websites or messages. Turn on Automatic Updates on the same page.
Update button greyed out
It needs WiFi, a battery above 50% (or the charger plugged in) and a few GB of free space.
Older iPhones
iPhones that no longer get new iOS versions still receive security updates for a while, but banking apps may eventually stop working.
While you’re here
Worth reading
Quiz time
Still not fixed?
In the next update you can tell us what happened, and our AI helper will suggest another way. Until then, restart the device and go through the steps once more.