unable to unlock iPad
I have an iPad Air which is locked. I tried to recover it with iTunes. Downloaded en installed the latest version (12.1.3.6). When I try to reset the iPad iTunes gives the following message (I hope I translate it correctly):
"There is no software available for this iPad. Check if you have the most recent version of iTunes and try again."
The iPad is not my own, but from a friend. We don't know which iOs is installed on the iPad.
Can anybody help me unlock this iPad?
iPad Air