Apple released iOS 10, the latest version of its software, on Tuesday for iPhones and iPads.
Many people on social media reported that the process isn’t going as smoothly as it has in the past.
Several iPhone users told Business Insider that the upgrade process is failing and asks them to plug their phones into iTunes.
If you go through with the update and you are not near a desktop with access iTunes, you might not be able to use your phone.
One user told Business Insider his phone only gave him two options — “update” and “restore.”
But once the phone or tablet is hooked up to a computer running iTunes, the update goes mostly smoothly and won’t erase your data, Business Insider reports.
Apple confirmed the issue in an email sent to Business Insider:
We experienced a brief issue with the software update process, affecting a small number of users during the first hour of availability. The problem was quickly resolved and we apologize to those customers. Anyone who was affected should connect to iTunes to complete the update or contact AppleCare for help.