Turn on mobile data in Settings

To turn on mobile data on a Samsung tablet, open Settings, then tap Connections. Look for Mobile networks or Cellular networks — the exact name depends on your tablet model and Android version. Tap it, then toggle Mobile data to the on position. The toggle will turn blue when active.

If you do not see a Mobile networks option, your tablet may not have a cellular radio built in. Wi-Fi-only tablets cannot use mobile data. Check your tablet's box or specifications to confirm whether it has LTE or 5G capability.

Some Samsung tablets also let you turn mobile data on from the quick settings panel at the top of the screen. Swipe down twice from the top to open the full quick settings menu, find the Mobile data tile, and tap it to toggle on.

Key Takeaways

  • Mobile data turns on through Settings > Connections > Mobile networks, then toggle Mobile data to on.
  • The quick settings panel at the top of your screen offers a faster way to toggle mobile data on and off without opening the full Settings menu.
  • Only Samsung tablets with a cellular radio — marked as LTE or 5G models — can use mobile data; Wi-Fi-only tablets cannot.
  • You need an active mobile plan from a carrier to use mobile data, separate from any Wi-Fi connection you may have.

Check that your tablet has a cellular plan

Turning on mobile data only works if your tablet has an active plan with a carrier. When you first set up a cellular tablet, you either activated a plan at the time of purchase or you need to contact your carrier to add one. Common carriers include Verizon, AT&T, T-Mobile, and regional providers.

If you are unsure whether your tablet has an active plan, go to Settings > Connections > Mobile networks and look for the carrier name and signal bars. If you see signal bars and a carrier name, your plan is active. If the area is blank or shows no signal, contact your carrier to confirm the plan status or set up service.

Understand the difference between mobile data and Wi-Fi

Mobile data and Wi-Fi are two separate ways to connect to the internet. Mobile data uses your carrier's cellular network — the same network your phone uses — and counts against a monthly data limit set by your plan. Wi-Fi connects to a wireless router in your home or a public hotspot and does not use your carrier's data.

Many people turn on mobile data only when they need it, to avoid using up their monthly allowance. If you have a Wi-Fi connection available, your tablet will use that by default even if mobile data is on. You can check which connection you are using by looking at the icons in the status bar at the top of the screen: a Wi-Fi symbol means you are on Wi-Fi, and signal bars mean you are on mobile data.

Turn off mobile data to save your monthly allowance

If you want to stop using mobile data without cancelling your plan, toggle it off the same way you turned it on. Go to Settings > Connections > Mobile networks and toggle Mobile data to off, or use the quick settings panel. When mobile data is off, your tablet can still connect to Wi-Fi networks.

Turning off mobile data does not affect your ability to make calls or send text messages if your tablet supports those features. It only stops internet use through the cellular network. Some tablets do not support calls or texts at all, even with a plan — check your tablet's specifications to see what your model can do.

Monitor your data usage to avoid overage charges

Most carriers charge extra if you go over your monthly data limit. To see how much data you have used, go to Settings > Connections > Mobile networks > Usage or Data usage. The exact path varies by tablet model, but the usage screen shows your current month's total and sometimes breaks it down by app.

If you are close to your limit, turn off mobile data and use Wi-Fi instead. Some carriers also send text alerts when you reach 75 or 90 percent of your limit, giving you time to adjust. Contact your carrier if you regularly exceed your limit — they may offer a higher-tier plan that costs less than paying overages.

Troubleshoot if mobile data will not turn on

If the mobile data toggle is grayed out or will not stay on, first restart your tablet. Power it off completely, wait 10 seconds, and power it back on. This clears temporary glitches that sometimes lock settings.

If the toggle is still grayed out after a restart, check whether airplane mode is on. Airplane mode disables all wireless connections, including mobile data. Swipe down twice from the top to open quick settings and look for an airplane icon. If it is blue or highlighted, tap it to turn airplane mode off.

If mobile data still will not turn on, contact your carrier to confirm your plan is active and your account is in good standing. They can also check whether your tablet's SIM card is recognized on their network. A SIM card is a small chip inside your tablet that connects it to the carrier's network — if it is damaged or not inserted properly, mobile data will not work.

Frequently Asked Questions

Can I use mobile data and Wi-Fi at the same time?

Your tablet will use one or the other, not both simultaneously. If both are on, your tablet prioritizes Wi-Fi because it is usually faster and does not count against your data limit. Turn off Wi-Fi if you want to use mobile data instead.

Does turning on mobile data cost money?

Turning on mobile data itself is free, but using it costs money if you have a plan with a monthly limit. You pay for the data you use, not for having the feature available. If you have unlimited data, using mobile data costs nothing beyond your monthly bill.

What is airplane mode and why does it block mobile data?

Airplane mode turns off all wireless radios on your tablet — cellular, Wi-Fi, and Bluetooth — at once. It was designed for airplane travel to prevent interference with aircraft systems. When airplane mode is on, you cannot use mobile data, Wi-Fi, or Bluetooth until you turn airplane mode off.

How do I know if my Samsung tablet supports mobile data?

Check the box your tablet came in or look at the product specifications online. Tablets marked as LTE, 5G, or cellular models support mobile data. Wi-Fi-only models do not have a cellular radio and cannot use mobile data, no matter what you do in Settings.

What should I do if I see no signal bars even though mobile data is on?

No signal usually means you are out of range of your carrier's network or your plan is not active. Try moving to a different location. If signal bars still do not appear, contact your carrier to check whether your plan is active and your SIM card is working.