Q: my i pad 2 is stuck,even cannot turn off.when i try to restore through pc,it come out with the words"i tunes could not back up the ipad because a session could not be started with the ipad",may i know whats the problems?tq

Q: my i pad 2 is stuck,even cannot turn off.when i try to restore through pc,it come out with the words"i tunes could not back up the ... my i pad 2 is stuck,even cannot turn off.when i try to restore through pc,it come out with the words"i tunes could not back up the ipad because a session could not be started with the ipad",may i know whats the problems?tq more