Error Occurred or Unable to install an update on iPhone, iPad OTA or iTunes

iPhone, iPad, and iPod Touch users are always willing to use new iOS. For this year apple’s new iOS version is iOS 14 beta released. New System’s iOS 14 features is a kingmaker prove remarkable success from new features and user’s experience in iDevice or other Apple products. In this many iOS users are reported Unable to install Update or Error occurred installing iOS.

The new iOS version will serially release with the version number in Developer Bata, Bate Public, and Public. All three are important for Developers, Tester, and Public end users.

Also, I discussed and tried to fix problems on Unable to install the update in iOS or Can’s installing new iOS for all the users in this tutorial step by step. and I got success to use iOS 14/iPadOS on iPhone and iPad.

NOTE: iPadOS 14.5 and iOS 14.5 public version will be released on the 26th of April 2021. iOS 14.5 comes with the latest feature which is associated with the Apple Watch (unlock iPhone with a mask using Apple Watch– required watchOS 7.4 or later) and Apple tv (Use Apple TV’s iPhone-Based Color Balance Feature – required tvOS 14.5 or later).

Keep full iPhone backup.

Install Now Grayed Out? or Not Starting

Unable to install iOS 14 after download, “Install Now” grayed out or not starting the installation.

  • Connect your iOS device to the power source via apple’s lightning cable.

Yaa! It’s working to check my Video Tutorial. Unable to install iOS 14 & An Error Occurred.Great Success

Solution 1: Free Up Storage on iOS device

  • Check Available Free space on iOS device, Settings > General > About > Available. [At least 5 GB free space required, Setup file size approximately 2.5 to 2.9 Gigabytes, But installation requires more space.] Because of not enough space, Download and install option under Software update will be grayed out. Many iOS/iPad Users are facing other issues, Download and install option is not showing and just showing Storage option.
  • To make free space Go to the Settings > General > iPhone Storage > Follow the recommendations or Delete unused Media files under the photos. Remove Unused Application with the option of Offload app or Delete App.
  • Also, Find the Downloaded iOS 13 file that saved here [Under the iPhone Storage]. Tap on it and Delete the file after following the below troubleshooting solution. Because after deleting it you must re-download the iOS setup file on your iPhone.

Solution 2: Check Battery

  • Keep original USB lightning cable connected to your iPhone to download or update the old iOS version, because it’s required.

Solution 3: Good internet connection

  • Some big updates take more internet bandwidth and good internet signal strength. Alternatively, we can use iTunes (Given guide in the last of the article).

Solution 4: Reboot or Force Restart/ Hard Reset

iPhone 8 Plus/8 Plus and iPhone X/ iPhone XS/XS Max/ iPhone XR/ iPhone 11/iPhone 11 Pro/iPhone 11 Pro Max:

  1. Press and Quickly Release Volume Up button,
  2. Then, Press and Quickly Release Volume Down Button,
  3. After that only Press and Hold Side Button until you see the Apple logo on Screen. Now turning on back using the Side/Power button. Press & Hold on Side/Power button until iPhone screen show startup apple logo on the screen.
  • iPhone 7/7: Press and hold the Sleep/Wake + Volume Down button at the same time until Apple logo on the screen.
  • iPhone 6S and Earlier: pressing and holding on the Sleep/Wake + Home button at the same time until you see the Apple logo on the screen.

iPhone update stuck on progress bar & Unresponsive: the whole process of update iOS, first take backup your data & Settings in the separate root folder and then restore on new iOS automatically. So obviously it will take too much time, calm down and sit back, wait to complete the process.

Solution 5: Reset Network Settings

By resetting all Network settings, Settings > General > Reset > Reset Network Settings. iDevice completely erases old network configurations, DNS settings, Especially for travelers and international users. Now Reconnect the WiFi because all WiFi password erased, manually pair after Reset Network settings.

Solution 6: Close settings app

use iOS app switcher and close settings app on the iOS device. Re-launch settings app on the home screen and fix all the problems related to update or install.

Enable/ Disable Airplane Mode: Airplane mode is auto turn off Cellular Data, the Carrier signal, and WiFi. From the Control center Turn on for 10 seconds and Turn off again. Now try to install iOS 14 update on iPhone, iPad, or iPod Touch.

Insufficient storage [iPhone Won’t Update iOS 14]: Lack of free storage on iPhone, first you go for download latest iOS 13 version, So you must need free space, Free up storage on update iOS 10 to iOS 12/ or Free up space on iPhone with iOS 12 (iOS 11.1).

1 iOS not updating on iPhone and iPad

For iOS Publick Beta & Developer > Unable to install update on iOS on iPhone, iPad: Error Occurred installing iOS

1. How to install iOS Beta, First time on iPhone, iPad?

  • This is not final and not confirmed new features, and you will get much more in the final version of iOS copy.
  • You need a developer account (Individual, Enterprise, or Organizations).
  • Activate request in Apple is the same in steps but charge and features are different. It depends on our job equation we can activate in 1 day.
  • Go to the []
  • Sign up with your personal information and pay for the account.
  • Download developer profile, and Check for update in the settings app (Go to the Settings > General > Software Update).
  • Remove Developer profile, Re-Download check for new Update
  • Go to the Settings > General > Profile > iOS Beta Software Profile > Delete Profile.
1 remove developer bate iOS 11 profile on iPhone or iPad

Login Developer account in the iOS Safari browser. Re-download and install profile. (Restart required)

Check new updates in iOS beta developer (iOS 14 and later Betas) in the settings app.

2. Install Public Beta iOS without Developer account

Public Bata is the intermediate stage of the new iOS version, iOS 14 public beta available in July 2020. And it’s free, to get this you need existing Apple ID, Password and log on at

  • Tap on Download Profile.
  • After complete download, install the profile and New iOS 14 beta available in Settings > General > Software update.

Your Device is not listed on supported devices: Normally this happen many times, Apple left the in-between device update of iOS versions series.

3. Install public iOS 14 – Final copy of iPhone, iPad or iPod Touch

It’s free, doesn’t need a login or register an iPhone, iPad, or iPod Touch. All iOS 14 compatible devices get new upcoming updates automatically under settings.

  • To check it, Settings > General > Software Update > Download & Install.

Info: Over the air (OTA) iOS update takes more time than iTunes.

iOS Update using iTunes

Update or upgrade with .ipsw file, this installation too much popular call clean install.

  1. Download .ipsw file for your iDevice model (iPhone, iPad, or iPod Touch).

After that, follow the steps given for Clean install and Restore Backup.

Update iTunes:

Won’t install or stuck new iOS 14 .ipsw file using iTunes, First, check new updates in iTunes.

Above all is the possible fix on Unable to install the update in iOS 14 or stuck & unresponsive between installation.

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