how can you delete trash from iphone
can't update iPhone because of space.
Says to delete trash. How do you do that on an iPhone?
the iPhone doesn't really have a trash. What is the exact message you see when you say it "Says to delete trash".
Some apps have a trash like function, for example in Photos when you delete a photo it won't actually delete for 30 days, here you can force the delete photos to be removed by going to Albums > Recently Deleted > Select > Delete all. You an also delete the trash folder in the Mail.