Since the firmware we need to download is large, it will take some time to complete the download.Make sure your network is stable during the process.Apps on the i Phone and i Pad are frequently updated with new features, various enhancements, security adjustments, and other components.If you don’t stay on top of updating i OS apps, you’ll quickly be inundated with dozens of available app updates waiting to be installed for your i Pad and i Phone apps.
The ability to update all apps at once is available in all vaguely modern i OS versions, and it’s the same on both i Phone and i Pad.
If your device contains a large number of files, the process can take from several minutes to an hour.
If your device appears in i Tunes, you can configure sync options, and you can sync content, the process is complete.
Even if the application has been downloaded on the device, it will not be able to successfully start and display the i OS 12 application waiting sign.
If you encounter such a situation, you can try to solve the following problems: If none of the above can save your phone, you'll ask for a professional i OS system recovery software.