Re: Tab S no longer opens email attachments
Have you held down the Power Button to restart the device?
This is also what I've captured from other threads:
"
If apps freeze/hang, your device crashes/resets, you can't view email attachments or website images or your data isn't syncing, wiping your cache partition may help. Our Troubleshooting Assistant can help you with other device issues if you aren't currently using the tool.
Warning Performing a wipe cache partition removes any temporary files that may be causing an issue with the device. All personal files and settings are not affected by this option.
Ensure the device is powered off.
Note If the device is unresponsive/frozen, press and hold the Power button (located on the top-left edge) for approximately 10 seconds or until the device power cycles.
Press and hold the Volume Up button (located to the right of the Power button; ensure right side of button is pressed) and the Home button (located at the bottom in the middle).
While continuing to hold the Home and Volume Up buttons, press and hold the Power button until 'RECOVERY BOOTING' appears in the upper left then release all buttons.
Select wipe cache partition.
Note Utilize the Volume Up/Down buttons to highlight and the Power button to select.
Select reboot system now."