Even a brand-new phone can run out of space if you've already transferred all your old photos and videos. You typically need 6GB or more of free space to download and unpack a major OS update. 2. Common Fixes for iPhone (iOS)

Getting a brand-new phone only to have it fail at the very first hurdle—a software update—is incredibly frustrating. Whether you're staring at a "Download Failed" message on a new iPhone or a "Checking for Update" wheel that never stops spinning on an Android, the causes are usually simple to fix.

Sometimes the download file gets corrupted. Go to Settings > General > iPhone Storage , find the iOS update in the list, and tap Delete Update . Then, go back to Software Update and try again.

Most phones require at least 50% charge to start an update. If you're below this, plug it into a charger; many devices won't even show the "Download" button otherwise.

Android update issues are often linked to system cache or server communication:

Here is a comprehensive guide to getting your new phone’s software up to date. 1. Check the "Basics" Checklist