Now that you've backed up your iPhone, you can erase it. Go to Settings > General > Transfer or Reset iPhone. Select "Erase ...
If your iPhone keeps warning that storage is full, there are several settings and system tweaks you can use to reclaim space ...
iPhone's "System Data" can take up a lot of space on your smartphone. Here's what we know. Credit: Future Publishing via Getty Images It's a dreaded notification that some iPhone users have come to ...