Sound not Working After Updating to iOS 8 how to fix this problem ?

Many users of iPad found that the Sound is not working after upgrading their device to the latest operation system, but thankfully there is an easy solution to this iOS 8 issue, and it works for most people.

Solution:

1) Hold down the Sleep/Wake button and the Home button together for 10 seconds or until the device restart and you see the Apple Logo.
2) Go to Settings > General and check Use Side Switch to and ensure Mute isn't ticked or toggle the side switch. You also can check by wiping up and taking a look at the icon on the right in Control Center.