does it delete photos and notes and videos
for updating to a new iOS does it delete photos and notes and pictues and also videos
iPod touch
for updating to a new iOS does it delete photos and notes and pictues and also videos
iPod touch
Not usually no, but you should always back up before you upgrade. See iTunes: Backing up, updating, and restoring iOS software
As long as you've backed up to iCloud or the latest iTunes, you should be good.
does it delete photos and notes and videos