iphone s4. it's a storage issue! i manage it and i could get 2.4 Gb free, but i still can't open apps or download a thing!

Hello mona_i,

It may help to force close all open applications, then restart your iPhone.

iOS: Understanding multitasking

http://support.apple.com/kb/HT4211

iPhone, iPad, iPod touch: Turning off and on (restarting) and resetting

http://support.apple.com/kb/HT1430

If you're still experiencing issues, you may need to restore the device.

iOS: Back up and restore your iOS device with iCloud or iTunes

http://support.apple.com/kb/HT1766

Cheers,

Allen

What are you talking about?

Please explain.

You have 2,4gb free on your iPhone? or in iCloud storage?

What happens when you try to download something?