I dropped my iPad 2 too but with more damages.After 2 weeks when i switched it(turn it upside-down) it started to go by himself.It happened when battery was 80 % so I didn't have patience to lowbat.I said that my Ipad was gone and that's it.After one week it started working a little bit and I continue until 40%.The key was that when it didn't respond I turned it upside-down.After it lowbat it started to work better.And that's it.Wait and you will see that will work.TRUST ME.​