iPhone5 Restore icloud back up to higher iOS version
Experts, I need help to restore my replacement iphone5 from icloud backup.
My iphone5 was running iOS 8.1 and backed up periodically (icloud).
Yesterday I got a replacement iphone5 since current one was having battery problems and during battery replacement process apple service-tech couldn't revive it.
The new iphone5 is running on iOS 7.02 and doesn't let me restore from icloud backup due to iOS version incompatibility.
When I try to look for software update, the only option I get is to update iOS 8.3.
My question is that
- Do the iOS version have to be exactly same for backup to be restored ?
- Should I apply iOS 8.3 on new phone ? Will I be able to restore back up that was on iOS 8.1 ?
Thanks in Advance.