iPhone says “unable to check for update, an error occurred while checking for upgrades”

Can you post a screenshot of the whole screen, it could reveal why you aren't able to update.

Make sure you:

• Are using a WiFi connection (not a hotspot).

• You have an active cell signal (You need both WiFi and cellular service to perform the upgrade).

• Are not using a VPN connection.

• Have your battery charged at least 50%. Better yet, keep it plugged in during the update.

• Do not have power save mode turned on.

• Do not have a beta version installed.

• You have at least 10 gigs of storage available.

Click on this link on what to do if you can't update your phone -

If your iPhone or iPad won't update – Apple Support (UK)

If you're getting the error message "Unable to check for update, an error occurred while checking for upgrades" when trying to update the software on your iPhone, there are a few steps you can try to resolve the issue:

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Check your internet connection: Ensure that your iPhone is connected to a stable and reliable internet connection, either through Wi-Fi or cellular data. Poor or intermittent connectivity can cause issues with checking for updates.

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Restart your iPhone: Sometimes, a simple restart can help resolve temporary software glitches. Press and hold the power button (or the power button and volume buttons on iPhone X or newer) until you see the "Slide to power off" option. Slide it to power off, then turn on your iPhone again.

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Update via iTunes/Finder: If you're unable to update your iPhone directly on the device, you can try updating it using a computer with iTunes (or Finder on macOS Catalina and later). Connect your iPhone to the computer, open iTunes/Finder, select your device, and look for the option to update the software.

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Check available storage: Insufficient storage space on your iPhone can sometimes cause issues with updating the software. Go to Settings > General > iPhone Storage to check how much available storage you have. If it's low, consider deleting unnecessary apps, photos, or files to free up space.

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Reset network settings: Resetting your network settings can resolve issues related to internet connectivity. Go to Settings > General > Reset > Reset Network Settings. Keep in mind that this will remove your saved Wi-Fi passwords, so you'll need to re-enter them.

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Update using Recovery Mode: If none of the above steps work, you can try updating your iPhone using Recovery Mode. Connect your iPhone to a computer with iTunes/Finder, force restart it (refer to Apple's support documentation for the specific steps), and follow the on-screen instructions to update your device.

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If you've tried these steps and are still experiencing issues, it's advisable to contact Apple Support or visit an Apple Store for further assistance. They can provide more specific guidance based on your device and the nature of the problem.

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Hope this works,

CXDeaks

Re: updating using iTunes on your computer. You wrote ‘connect your iPhone to the computer’ with zero details about how to do that. Other suggestions haven’t worked. I’d like to try this one. The train jumps off the track when you say, connect your phone to computer without saying how.

I did connect phone to computer using the phone charging cable. After that… I nothing. It shows me phone’s internal storage. Percent of storage full. But how to get the two to talk to each other???