I deleted the update file for iOS 9.3. Is it possible to reinstall it? I was having trouble installing the new iOS 9.3 on my iPhone 5 and I got the advice that I should delete the update file and try to reinstall it. The problem is now that I have deleted the file I can't find the update file for iOS 9.3 again. I have restarted the phone but it didn't help, it says I have the latest update (9.2.1). Is it possible to install iOS 9.3 now?

Update: I got the new update today randomly. The installation of 9.3 went successfull.
Apple has pulled the iOS 9.3 update for some (older) devices because of a bug that could prevent using your device. Apple is not signing iOS 9.3 for your iPhone (5s and older), so it is not possible to update by official means at this time. According to the link below, 9.3 could potentially brick an older phone under certain conditions. 

Source: http://9to5mac.com/2016/03/24/bricked-iphone-5s-5-ipad-2-ios-9-3-fix/