Start with the battery and charging port

A Samsung tablet that won't turn on is usually dead or stuck, not broken. The first step is to charge it for at least 30 minutes using the original charger or a cable you know works. Plug it into a wall outlet, not a computer USB port—computer ports deliver less power and charge much more slowly.

While it charges, look at the charging port on the bottom or side of the tablet. If you see lint, dust, or corrosion inside the port, use a dry toothpick or wooden stick to gently clear it out. Do not use metal or force—you can damage the contacts. If the port looks wet or the tablet was recently exposed to water, let it dry in a warm, dry place for 24 hours before trying again.

After 30 minutes of charging, press and hold the power button for 10 seconds. The power button is usually on the top or side edge. You may see a Samsung logo or vibration before the screen lights up. If nothing happens, keep it plugged in and wait another 30 minutes, then try again.

Key Takeaways

  • Charge your tablet for at least 30 minutes with the original charger plugged into a wall outlet, because computer USB ports charge too slowly to wake a dead tablet.
  • Clean the charging port with a dry toothpick if you see dust or lint, but do not use metal tools or force.
  • Press and hold the power button for 10 seconds after charging; the tablet may take several minutes to respond.
  • If the tablet was wet, let it dry completely for 24 hours before charging again.
  • A forced restart using button combinations can unstick a frozen tablet even when the screen stays black.

Try a forced restart if the tablet is frozen

If your tablet is charged but the screen stays black or frozen, a forced restart can wake it. The button combination depends on your Samsung model. For most recent Samsung tablets, press and hold the power button and the volume down button together for 10 to 15 seconds until you see the Samsung logo or feel a vibration.

Release both buttons and wait 10 seconds. The tablet should restart and show the lock screen. If you see the logo but the screen goes black again, let it sit for a few minutes—the restart process can take longer than you expect.

For older Samsung models, the combination may be power plus volume up, or power plus both volume buttons. If you are not sure which buttons to hold, look up your specific model number (found in Settings > About Tablet) online to confirm the exact combination for your device.

Check for water damage or physical damage

If your tablet was dropped, sat on, or exposed to water, physical damage may prevent it from turning on. Look for cracks in the screen, dents in the case, or water inside the screen (small droplets or fogging behind the glass). If you see any of these, the tablet likely needs professional repair.

Water damage is not always visible. If your tablet was wet or very humid, the internal circuits may have corroded even if the outside looks dry. In this case, do not keep charging it—continued power can cause more damage. Instead, place it in a warm, dry location (not in direct sunlight or near heat) and leave it unplugged for 48 hours. After that time, try charging and turning it on again.

If the tablet still will not turn on after drying, or if you see visible cracks or water inside the screen, contact Samsung support or visit a repair shop. Attempting to open the tablet yourself will void any warranty and may cause more damage.

Perform a hard reset if the tablet is stuck on a boot screen

Sometimes a Samsung tablet gets stuck showing the Samsung logo, a spinning circle, or "Android is starting" for more than 10 minutes. This usually means the system is frozen during startup. A hard reset can fix this without erasing your data.

While the tablet is powered on (or stuck on the boot screen), press and hold the power button and volume down button together for 10 to 15 seconds. You should see the recovery menu appear—a screen with text options like "Reboot system now" or "Wipe cache partition." Use the volume buttons to move down to "Reboot system now" and press the power button to select it. The tablet will restart normally.

If the recovery menu does not appear, your tablet may need a factory reset, which erases all data. Before you do this, try leaving the tablet plugged in and powered on (or stuck on the boot screen) for 2 to 3 hours. Sometimes a very slow system update or repair process is running in the background and just needs time.

Know when to contact Samsung support

If your tablet still will not turn on after charging for an hour, trying a forced restart, and checking for water damage, the problem is likely a hardware failure. This could be a dead battery, a broken charging port, or a failed circuit board. These issues require professional repair.

Contact Samsung support through their website or call their customer service line. Have your tablet's model number ready (found in Settings > About Tablet, or on the back of the device). Samsung may offer mail-in repair, a replacement, or a referral to an authorized repair shop depending on your warranty status and the age of the tablet.

If your tablet is out of warranty, get a repair estimate before agreeing to work. Some repair shops charge less than Samsung's official service, but make sure they are authorized to work on Samsung devices so your warranty is not affected if you ever need service again.

Prevent future power problems

Keep your Samsung tablet charged above 20 percent when you are not using it regularly. Letting it drain completely to zero percent can damage the battery over time and make it harder to turn on later. Charge it at least once a month even if you are not using it.

Use only the original Samsung charger or a certified third-party charger rated for your tablet model. Cheap chargers can damage the battery and charging port. Keep the charging port dry and free of dust by storing the tablet in a clean, dry place. If you use your tablet near water or in humid environments, consider a protective case with a sealed charging port.

Avoid leaving your tablet in very hot or very cold places, as extreme temperatures can cause the battery to fail. If you store it for more than a few months, charge it to about 50 percent before putting it away, then charge it again before using it.

Frequently Asked Questions

How long should I charge my Samsung tablet before it turns on?

Charge for at least 30 minutes with the original charger plugged into a wall outlet. If it still will not turn on, keep it plugged in and wait another 30 minutes. Very dead batteries can take 1 to 2 hours to build up enough power to respond to the power button.

What if my tablet turns on but gets stuck on the Samsung logo?

This usually means the system is frozen during startup. Try a forced restart by holding power and volume down together for 10 to 15 seconds. If that does not work, leave it plugged in and powered on for 2 to 3 hours—a system update may be running in the background.

Can I fix water damage myself?

Do not open the tablet or use heat to dry it. Instead, place it in a warm, dry location unplugged for 48 hours. If it still will not turn on after drying, contact Samsung support or a repair shop. Opening the tablet yourself will damage it further and void your warranty.

Is it safe to keep charging if my tablet won't turn on?

Yes, it is safe to leave it plugged in for several hours. However, if the tablet was wet or exposed to water, unplug it and let it dry for 24 hours first. Charging a wet tablet can cause internal damage.

What does it mean if my tablet vibrates but the screen stays black?

The tablet is responding to the power button, which is a good sign. It may be stuck in a boot loop or the display may have failed. Try a forced restart using power and volume down together. If the screen stays black after that, the display may need professional repair.