This article explains how you can successfully update your iPhone 18 Pro or iPhone 18 Pro Max if the iOS update is stuck on the “estimating time remaining” screen for a very long time (several hours, more than a day), not just a few minutes, even hours.
Usually, wireless iOS updates go smoothly. And furthermore, downloading and installing iOS updates are designed to be very easy. However, rarely you may experience some problems when you want to download and install the updates. And one of the common problems that people are having is that the iPhone 18 Pro or iPhone 18 Pro Max is stuck on “Estimating Time Remaining” when downloading the update.
If your update appears stuck, then this article is for you. Before you do anything, having patience may resolve this issue. Wait some more to see if it resolves on its own. If your issue does not resolve after several hours, then continue.
Many factors can cause this problem. Below you will find how you can address them:
Slow Wi-Fi
You may have a slow internet connection. Since the update requires an active internet connection, you may have a slow download speed or you may be having Wi-Fi related problems if you are experiencing this problem. You may want to check a few things:
- Are you also downloading other stuff simultaneously? This may include downloading other apps from the App Store. This may also include YouTube videos or watching Netflix. Stop those other downloads as doing so will improve your download speed and wait to see if your issue is fixed.
- You may want to restart your Modem and router. Restart your router and cable modem by unplugging the devices and then plugging them back in.
- Restart your device.
- Press and hold either volume button and the side button until the power-off slider appears.
- Drag the slider, then wait 30 seconds for your device to turn off.
- To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.
- You may want to troubleshoot slow Wi-Fi issues. If your router supports separate frequencies, try joining another frequency—for example, join 5 GHz instead of 2.4 GHz.
- Reset network settings by going to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. (note that this will remove your network settings such as your Wi-Fi passwords etc).
- Go to Settings and turn Airplane Mode on and off. Wait five seconds between turning Airplane Mode on and off.
Not enough space
A common cause of this is inadequate available free space. Your device requires at least 1 GB of free space to upgrade. You may need to make room to speed up the installation. If you need help freeing up space, you may try the following:
- Go to Settings > General > iPhone Storage and see how much available space you have on your device. Scroll down and you will see that there are Recommendations. They will help you save space.
- You may want to delete unwanted apps, videos or photos.
Server outage
Are you trying to install an update that Apple just released? Apple’s update servers may be very busy since a lot of users are trying to update at the same time. People can’t wait because new updates bring a lot of new exciting features. If this is the case, Apple’s server might be slow to respond because they are overloaded because of this high demand. Maybe you can wait one day and try again when Apple’s servers are less busy.
Another related issue is that Apple’s servers may be down. This article explains how you can check whether or not there is a problem. If Apple’s servers are not available, do not worry, it is temporary. And Apple will fix it.
Delete update and try again
Please follow the steps below:
- On your iPhone, go to Settings > General > iPhone Storage
- Locate the iOS version that you are trying to install, and tap that
- Tap Delete Update
- Now restart your device. In fact restart everything, including your modem and router.
- Now go to Settings > General > Software Update and try again.
Use your computer
You may want to connect your iPhone 18 Pro to your computer and try again here is how:
- Open the Finder on your Mac, or open the Apple Devices app on your PC. If your PC doesn’t have the Apple Devices app, or your Mac is using macOS Mojave or earlier, open iTunes instead.
- Connect your iPhone to your computer
- Locate your device on your computer. You may need to trust your device to continue.
- Click General or Summary, then click Check for Update and then click Download and Update.
