Earlier, when Apple launched beta version of iOS 9, people faced battery life issue. And after the public release, people created a ruckus over slow performance of iOS 9. We have dealt with both issues and offered possible solutions on how to improve iOS 9 battery life on iPhone & iPad, and tips to fix iOS 9 Lag and Slow Performance issues.
But of late, yet another problem has emerged and it is “Slide to Upgrade”. Well, this is not an issue as such because users get stuck at the “Slide to Upgrade” screen.
Users normally get stuck after the OTA update process and the installation of iOS 9. iPhone users complained that their phones were stuck at the Slide to Upgrade screen, and they were not able to do anything. Sensing this serious bug, Apple has immediately released a new support document.
Though the glitch can be solved, users have to keep their calm and take a backup of their devices by using iTunes. But make sure that you take a backup from the device before it was updated to iOS 9. In the absence of older backup, you are advised to take your iPhone or iPad to Apple Care.
How Fix iOS 9 Update Stuck at “Slide to Upgrade”
Step #1. Connect your iPhone/iPad with a PC or Mac.
Ensure that you have downloaded latest version of iTunes. If your device is not identified or detected, go for the “Force Restart” by pressing power and home button for 10 seconds.
Step #2. Once your device is restarted, select your device on iTunes and Restore from a backup, which was taken before the iOS 9 update.
Step #3. Now select the backup and click on Restore Backup.
This should solve the issue and you will be able to go for the update. Note that this process will solve the stuck at “Slide to Upgrade” glitch, and therefore, you are on iOS 9. Now go ahead with the upgrade process.