what will happen if your cell phone storage is full where it becomes hard to free up spaces and hard to clean up storage?

I tried it with an SD card and it failed.

Anonymous2021-01-27T02:41:57Z

Delete as many photos and videos as possible. Delete apps you dont need. Then plug the phone into a computer, import all your photos/videos BOTH on the computer and on an extra flash drive, then delete more stuff from the phone.

Or get a bigger SD card.

John Alden2021-01-26T18:37:26Z

Delete unused apps. Delete unnecessary files. Clean your cache.

Anonymous2021-01-26T06:40:40Z

it blows up