Those errors on your iPhone 5c might indicate a problem with updating the device's software. It doesn't necessarily mean something dodgy is happening, but it could be due to various issues like network problems, insufficient storage.
Here are a few steps you can try to troubleshoot:
- Ensure you have a stable internet connection, preferably Wi-Fi, as a weak or unstable connection might cause these errors. Cannot update iOS - Apple Community
- Restart your iPhone: Sometimes, a simple restart can resolve software glitches. Try turning your iPhone off and back on again.
- Restart the device. That's it.

- Still not solved --> Force restart iPhone - Apple Support

- Update via iTunes: If updating over-the-air (using Wi-Fi) isn’t working, try updating through iTunes on a computer. Connect your iPhone to a computer with iTunes installed, then select your device in iTunes and choose the Update option. —> Update your iPhone, iPad, or iPod touch - Apple Support (IN)
- Free up space: If your device is low on storage, it might struggle with updates. Try deleting unnecessary files or apps to free up space. Manage and Clear Storage on your iPad and… - Apple Community
- Reset network settings: Go to Settings > General > Transfer & Reset > Reset > Reset Network Settings. This will reset Wi-Fi networks and passwords, cellular settings, etc. You'll need to re-enter Wi-Fi passwords afterward.
- If the issue persists, you can try resetting all settings on your iPhone. This will not erase your data but will reset all personalized settings to their default values. Go to Settings > General > Transfer & Reset > Reset > Reset All Settings and confirm the action. Note that you will need to reconfigure your settings afterward. All settings—including network settings, the keyboard dictionary, the Home screen layout, location settings, privacy settings, and Apple Pay cards—are removed or reset to their defaults. No data or media are deleted.
- Reset All Settings: Return iPhone settings to their defaults - Apple Support:- Return iPhone settings to their defaults
- You can return settings to their defaults without erasing your content.
- If you want to save your settings, back up your iPhone before returning them to their defaults. For example, if you’re trying to solve a problem but returning settings to their defaults doesn’t help, you might want to restore your previous settings from a backup.
- Check Apple’s System Status: Sometimes, update issues might be due to problems on Apple’s end. Check the Apple System Status page online to ensure there are no ongoing issues with the update servers. System Status
- Update using a computer: If you have access to a computer, try using it to update your iPhone through iTunes or Finder (for macOS Catalina and later).
If none of these steps work, it might be worth contacting Apple Support directly for more specific troubleshooting steps or considering a visit to an Apple Store if one is accessible to you.