Volume quick key

you will need to hard reset the tablet

turn off device

press volume down and power button at the same time when u see the hisses logo release the keys

you will see android man press the power and volume up button at the same time and release the keys

you will see writing go down to wipe date with the volume down button highlight wipe data press power button to ok it

then go down to yes highlight yes with the volume down button press power button to ok then it will reset it then will come back with writing

go down to reboot highlight reboot then press power button to ok it

the tablet will restart

try hard reset the tablet press the volume down button and power button when u see the Hisense logo release the keys will come up with the android man with a red triangle hold down power button and up button release the keys u will see some writing then go down with the volume down key to wipe data press power button to ok to select wipe data to wpe your tablet clean

your phone is bricked you need to load new os or try to role back os version. or you can try hard reset. hold power button and volume up until you se robot lying on back with chest open press power bttn quickly and a menu should pop up just look for the option that says reset scroll down with volume down button and pres power button for ok/yes and you should resolve problem

There are few combinations and you'll have to be quick to get the moment to press all 3 at once. Don't work every time as you have only a second or less to press the correct combination:

Each phone manufacturer has its own Recovery Mode key combinations.

You'll have to try each combination until you find the correct one for your Android phone or Tablet.

* Combination 1 - Volume Up + Camera button.
* Combination 2 - Volume Down + Power button.
* Combination 3 - Volume Up + Power button.
* Combination 4 - Volume Up + Home + Power button.
* Combination 5 - Volume Down + Volume Up + Power button.
* Combination 6 - Home + Camera button.
* Combination 7 - Home + Power button

Note: the different types of methods are numbered, method 1, method 2, method 3, etc.
1. When the phone is powered off, press and hold the Volume Up and the Volume Down keys both at the same time, then press and hold the Power key until a test screen that shows some available options appears, usually takes about 15-20 seconds. When that screen pops up you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights FACTORY RESET then press the Power key to select it.
2. Power the phone off all the way, press and hold the Volume Down key and press than release the Power key, still holding the volume down key for about 10-15 seconds. When you see some additional options pop up on the screen you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights the reset option; it usually says FACTORY RESET, then press the Power key to make the selection.
3. While powered off, press and hold the Home key, while continuing to hold the home key power the device on by pressing the Power key.
Once the Android Recovery screen appears release the Home key, then while on the Android Recovery screen, press the Volume Up and Volume Down keys both at the same time.
If/when you're on the Android System Recovery screen release all the keys, and then use the Volume down key to navigate down to the "wipe date/factory reset" option. Once it's highlighted press the Power key to select it.
Once you see the "Confirm wipe of all user data?" Press the Volume down key to highlight "Yes-delete all user data", then press the Power key to select it.
4. Power the device off, then press and hold the Home key and press and release the Power key (while still holding the Home key).
From the Android Recovery screen, press the Search key.
Tap to select wipe data/factory reset then select Ok (located in the lower left of the screen). Note: if screen is not responsive use the Volume keys to scroll and the Camera key to select.
Select Yes - delete all user data, and then select OK (again lower left).
Select "reboot system now" and press OK.
5. This is becoming a common hard reset method and can be used to factory reset Samsung's more recent Galaxy smartphones such as the Samsung Galaxy S III, the Samsung Galaxy S4, the S5, the Samsung Galaxy Note the Note II and Note 3, etc.
With the device powered off press and hold the Volume Up key the Home key and the Power key all at the same time.
When the phone vibrates (or you see the GALAXY Logo) release the Power key but continue to hold the Volume Up and Home key.
Continue holding the Volume up and Home key until the "Android system recovery" screen appears.
Use the Volume buttons to scroll to and highlight the "wipe data/factory reset" option, and then use the Power key to make the selection.
Once the factory reset is finished you may use the Volume and Power keys to highlight and select the "Reboot system now" option and the hard reset will be complete and your cell phone will be nice and squeaky clean.

Data will be lost so first press the back up option and take a back up into sd card

Note: the different types of methods are numbered, method 1, method 2, method 3, etc.
1. When the phone is powered off, press and hold the Volume Up and the Volume Down keys both at the same time, then press and hold the Power key until a test screen that shows some available options appears, usually takes about 15-20 seconds. When that screen pops up you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights FACTORY RESET then press the Power key to select it.
2. Power the phone off all the way, press and hold the Volume Down key and press than release the Power key, still holding the volume down key for about 10-15 seconds. When you see some additional options pop up on the screen you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights the reset option; it usually says FACTORY RESET, then press the Power key to make the selection.
3. While powered off, press and hold the Home key, while continuing to hold the home key power the device on by pressing the Power key.
Once the Android Recovery screen appears release the Home key, then while on the Android Recovery screen, press the Volume Up and Volume Down keys both at the same time.
If/when you're on the Android System Recovery screen release all the keys, and then use theVolume down key to navigate down to the "wipe date/factory reset" option. Once it's highlighted press the Power key to select it.
Once you see the "Confirm wipe of all user data?" Press the Volume down key to highlight "Yes-delete all user data", then press the Power key to select it.
4. Power the device off, then press and hold the Home key and press and release the Power key (while still holding the Home key).
From the Android Recovery screen, press the Search key.
Tap to select wipe data/factory reset then select Ok (located in the lower left of the screen). Note: if screen is not responsive use the Volume keys to scroll and the Camera key to select.
Select Yes - delete all user data, and then select OK (again lower left).
Select "reboot system now" and press OK.
5. This is becoming a common hard reset method and can be used to factory reset Samsung's more recent Galaxy smartphones such as the Samsung Galaxy S III, the Samsung Galaxy S4, the S5, the Samsung Galaxy Note the Note II and Note 3, etc.

With the device powered off press and hold the Volume Up key the Home key and the Power key all at the same time.

When the phone vibrates (or you see the GALAXY Logo) release the Power key but continue to hold the Volume Up and Home key.

Continue holding the Volume up and Home key until the "Android system recovery" screen appears.

Use the Volume buttons to scroll to and highlight the "wipe data/factory reset" option, and then use the Power key to make the selection.

Once the factory reset is finished you may use the Volume and Power keys to highlight and select the "Reboot system now" option and the hard reset will be complete and your cell phone will be nice and squeaky clean.

Note: the different types of methods are numbered, method 1, method 2, method 3, etc.
1. When the phone is powered off, press and hold the Volume Up and the Volume Down keys both at the same time, then press and hold the Power key until a test screen that shows some available options appears, usually takes about 15-20 seconds. When that screen pops up you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights FACTORY RESET then press the Power key to select it.
2. Power the phone off all the way, press and hold the Volume Down key and press than release the Power key, still holding the volume down key for about 10-15 seconds. When you see some additional options pop up on the screen you can let go of the keys.
Press the Volume Down key to navigate down through the options until it highlights the reset option; it usually says FACTORY RESET, then press the Power key to make the selection.
3. While powered off, press and hold the Home key, while continuing to hold the home key power the device on by pressing the Power key.
Once the Android Recovery screen appears release the Home key, then while on the Android Recovery screen, press the Volume Up and Volume Down keys both at the same time.
If/when you're on the Android System Recovery screen release all the keys, and then use theVolume down key to navigate down to the "wipe date/factory reset" option. Once it's highlighted press the Power key to select it.
Once you see the "Confirm wipe of all user data?" Press the Volume down key to highlight "Yes-delete all user data", then press the Power key to select it.
4. Power the device off, then press and hold the Home key and press and release the Power key (while still holding the Home key).
From the Android Recovery screen, press the Search key.
Tap to select wipe data/factory reset then select Ok (located in the lower left of the screen). Note: if screen is not responsive use the Volume keys to scroll and the Camera key to select.
Select Yes - delete all user data, and then select OK (again lower left).
Select "reboot system now" and press OK.

i guess u need to hold vol+power keys for few seconds when the tablet is switched off.

Ok let it sit on the ORIGINAL charger for hours. DONT TOUCH IT. then after 4-5 hours see what happens. if nothing still i would go ahead and call Samsung or take it to the store if you bought it. could be a defect and get money back or a replacement. If it actually a defect then you will be coverd its called a manufactures defect and they last up to a years in coverage.

i have one more option and it is safe and many people do it. sometime the operating system doesn't respond so try this. if you see a samsung logo during the beginning then you know your good and just finish the steps and enjoy! hope this helps!
Performing a hard reset

1. Turn Off your Samsung Galaxy Note 10.1 device.
2. Wait for 10 seconds, Then move to the next step.
3. Press and hold Volume Up key + Power key.
4. Keep pressing the above keys until the Samsung Logo appears,Then release Power key only.
5. When you see Factory reset / System Recovery menu on screen release the Volume Up Key.
6. Use Volume Down key to select Wipe Data / Factory Reset option.
7. Use Power key to confirm the operation.
8. You need to use the Volume Down key again to select "Yes - delete all user data"
9. Use Power key to confirm.
10. After performing the hard reset, Select Reboot System Now option, And confirm it using Power key.

Hard or master reset

A hard reset restores the original factory settings and may erase all downloaded content, including ringtones, images, programs, and contacts stored in the internal memory. To perform a hard reset, follow these steps:

1. Back up all necessary data by copying any files you want to save from your phone to your computer.
2. From the Start screen, swipe left.
3. Tap Settings.
4. Tap about.
5. Tap reset your phone.
6. Tap yes.

Hard or master reset using hardware buttons

If the phone is locked, frozen, or unresponsive, you can hard reset it using the hardware keys instead of the menu. A hard reset restores the original factory settings and may erase all downloaded content, including ringtones, images, programs, and contacts stored in the internal memory. To perform a hard reset using hardware keys, follow these steps:

1. Back up all necessary data by copying any files you want to save from your phone to your computer.
2. With the phone turned off, press and hold the Volume Up and Volume Down keys.
3. While still pressing the Volume keys, quickly press the Power/Lock key.
4. When the device displays 'This operation will delete all your personal data, and reset all settings to manufacturer default. Press Vol Down to restore manufacturer default, or press other keys to cancel.', release the Volume keys.
5. Press the Volume Down key to reset the device.