Samsung Galaxy Tab S 10.5

Troubleshoot problems with basic functions and settings

I can't turn on my tablet
There's no incoming call alert on my tablet
My tablet doesn't play a message tone when I receive a message
The touch screen on my tablet isn't responding
My tablet is slow
My tablet's battery life is short

Troubleshoot problems with calls and voicemail

I can't make voice calls
I can't receive any calls

I can't make video calls

Possible cause 2 of 3:

The receiving tablet doesn't support 3G or isn't connected to a 3G network
To make a video call both devices need to support 3G and be connected to a 3G network.

What you need to do
Make a voice call and ask the recipient if the other device supports 3G and if it's connected to a 3G network.

Did this solve the problem?

Samsung Galaxy Tab S 10.5
I can't receive messages on my voicemail
I can't check my voicemail

Troubleshoot problems with SMS, MMS and email

I can't send and receive SMS
I can't send and receive MMS
I can't send and receive email

Troubleshoot problems with multimedia, apps and internet

I can't use GPS navigation
I can't access the internet
I can't take pictures using the camera
I can't play music
I can't install an app
I can't use one of my apps

Troubleshoot problems with connectivity

I can't use my tablet as a Wi-Fi Hotspot
I can't use tethering on my tablet
I can't connect to another Bluetooth device
Another Bluetooth device can't establish a connection to my tablet
I can't use Wi-Fi