Hi there - this is all getting a bit crazy. Either the iPad pro works or it doesn't? It's like saying don't change into 6th gear on a car!
These items are basically faulty or corrupted. Believe me, I have spend so much time on this and have already returned one 'completely scrambled iPad pro 128gb wifi, after having to reset 4 times. Basically, all this uninstalling and installing causes more problems. Even the guys at Covent Garden flagship store were bemused by my totally frozen iPad. They also said they hadn't heard of this issue with locking after freezing before!! - really? Anyway they gave me a new iPad pro 128gb and we set it up in store from a previous backup. I waited 3 hours in the shop to complete the whole set up process - that should have told me something. Anyway the new ipad worked for a day and even charged ok but then the email stopped working properly, the iTunes store kept on trying to download items I don't even have anymore! and on surfing the pages went balnk on occasion. I then rang Apple and basically said sort this out or I return the second iPad pro 128gb. I spent over 2.5 hours on the phone trying to resolve all these issues. The very nice lady, sent me an email with her contacts on it and then rang me later in the afternoon.
Basically she felt the iPad software was corrupted - probably sitting with 200 others in Apple's store! Anyway she got me to wipe the ipad (1st time only - any more will screw up the machine) She then got me to connect to my laptop and in iTunes. From there she reinstalled the ios 9.1 operating system, and set the iPad up as a new item. We then reset the machine again!!! From there I just set up via wifi on an recent back up from my old iPad 32gb which has always been faultless. The set up took less than an hour!! All the music was fine. The email worked properly (previously there were no notifications when emails came in - the emails came in minutes after my old iPad and iPhone) The safari worked ok and the notifications started working. Bingo.
The only outstanding issue is that after closing with the smart cover, the volume icon does not show on the screen. To get it back you have to turn off and on and then it works fine. Nothings perfect. This issue is on my iPad 32gb also. I will monitor for the next 10 days and if anything else happens I will return it under the 14 days period. I suggest you all stop mucking around with various settings. It is the ios 9.1 that is the problem. Apparently the new ios 9.2 is out soon, but knowing Apple they may not sort the iPod pro out yet. Do not keep on resetting the machine as eventually it will scramble its brains like it did to my first iPad pro!! Good luck.