iphone backup failed can I still restore from it?

FUNKSTICK wrote:

I tried to back up in my iphone 6plus a month or so ago. It failed.

I never around to backing it up again.

Then my phone died... dropped in water.

I got a new iphone 6plus...

I remember all my pictures and mail etc on my icloud

If I try to restore from that failed backup... will I lose my data or hurt the new phone or whatever?

will the new phone then be useless too?

Just asking before I try this

if the backup failed, then there is nothing to restore back from.