how to backup your devices using i cloud
my phone wont work because of the ios 9 update im trying to backup my iphone 4s using icloud or itunes help me out
Have you tried it like this?
How to back up your devices using iCloud or iTunes - Apple Support
About backups in iCloud and iTunes - Apple Support
If the method does not work - in what way does your iPhone not work after you installed the iOS9 appdate?