If you’re using an i Phone older than the i Phone 5, you’ll be unable to install the update.Try updating through i Tunes after making sure you’re running the latest version of the software.You can try these solutions to kick this issue out.Potential Solutions: Software Update and choose Download and Install if you have the option.To update your app, just open the App store, then tap Updates at the bottom right of the screen, after that tap Update All in the upper right corner.In fact, allowing all your apps to continually update and refresh in the background is a sure-fire way to drain your i Phone battery.Also some possible tips and tricks that could come in handy will be covered in this post, so do not miss it.
Press the Sleep/Wake and Home buttons (Volume Down buttons for i Phone 7/7Plus) for at least ten seconds, until you see the Apple logo.
Potential Solutions: As with every i OS update, some i OS users have run into the unfortunate situation of not being able to update their i Phone or i Pad using the over-the-air (OTA) Wi-Fi method when updating both their i Phone and i Pad.
Potential Solutions: Please note that not all i OS devices are compatible with i OS 11.
Simply take out the SIM card from your phone, it sometimes works.
It could be a hardware or software malfunction that you’re unequipped to deal with.