The iOS operating system on Apple's mobile devices offers a function that allows users to stop several services, including app installation. Set Restrictions for Installing Apps to OFF to allow your iPhone to install updates. Here's how to do it:
- Go to the Settings tab.
- Select General.
- Select Restrictions from the drop-down menu.
- Enter your passcode if prompted.
- Make sure the slider in the Installing applications option is moved to the left. If it's on the right, it's turned on, and you won't be able to install any apps on your phone.
Make sure you're connected to the internet through wifi.
Make sure you're connected to a wifi network if you're upgrading applications directly on your phone rather than through iTunes. If you're using mobile data, you may not be able to install apps if your data limit has been surpassed.
Alternatively, connect to a separate wireless network and see what happens. see if update installation works there
