It was on 8.1 as the 8.1.1 update wasn't available. Like I said in my previous post. It still vibrates when the volume is high but my issue was that it vibrated even at low level settings.
The previous and current vibration aren't even the same. The current one vibrates like you would expect a wall to do when playing loud music (follows the beats). The previous one vibrated at low levels and at a high vibration frequency... like not with the bass/music beats. Hard to explain but you KNOW there is a problem when you feel it.
I didn't have any other issues with the old ipad other than the vibration so I'm happy now. No screen issues or bending. The rear pressure would cause the screen to deform but it only did it when applying a lot of pressure and wasn't an issue when I used it with one hard so not a big deal.
The previous and current vibration aren't even the same. The current one vibrates like you would expect a wall to do when playing loud music (follows the beats). The previous one vibrated at low levels and at a high vibration frequency... like not with the bass/music beats. Hard to explain but you KNOW there is a problem when you feel it.
I didn't have any other issues with the old ipad other than the vibration so I'm happy now. No screen issues or bending. The rear pressure would cause the screen to deform but it only did it when applying a lot of pressure and wasn't an issue when I used it with one hard so not a big deal.