Note 8 still freezes on startup screen after factory reset

1 in order to switch off the tablet hold down the power key for a short while. 2 after that press and hold together volume up and home and power button for a few seconds. You may release held keys when Samsung logo appears on the screen 4 select wipe data/ factory reset using volume buttons to navigate and power burtton to confirm in the next step choose yes delete user data to confirm whole operation 6 when the recovery mode appears again select reboot system now 7 good job the hard reset has just been performed.

NOTE: You may have to wait 30 seconds-1 minute when performing each step.
If you don't want to lose DATA there may be a "Forgot password?" option in which case google will reset the password via your email. If this option is not there then follow these steps.
To perform factory/hard reset please follow those steps (you will lose everything):
1. Turn the power off.
2. Press and Hold the Volume Up and Power button at the same time.
3. When the start up screen show (Samsung logo displays on the screen), release all the buttons.
4. Use the Volume Up/Down button to navigate to "wipe data/factory reset", select with Power button
5. Select "wipe data/factory reset"
6. Select "Yes -- delete all user data"

• Allow several minutes for the factory data reset process to complete.

7. Select "reboot system now"

• Allow several minutes for the reboot process to complete..
• This is all i could find on the internet so not sure if its what you are looking for.

Method 1: From Startup (Tab 4)

1. With the device off, press and hold the "Volume Up", "Home", and "Power" buttons.
2. Release the buttons when you see the recovery screen and the Samsung logo.
3. Use the volume buttons to navigate the menu and select "wipe data / factory reset". ...
4. On the next screen, press "Volume Up" to continue.

To help you perform a factory reset if your Samsung tablet is working and powered ON, please follow the instructions mentioned below:
- It is recommended to back up all the data like Phone contacts, Email accounts, App settings and Downloaded apps, Music-Picture-Videos, Internet browsing data and Personal data from the tablet before performing factory reset.
- From the Home screen, navigate: Apps > Settings > Privacy.
- Click on 'Factory data reset'.
- Click on 'Reset tablet'.
- Click on 'Erase everything'.
- Allow several minutes for the factory data reset and reboot processes to complete.

Now, if in case you need to perform a factory reset if your Samsung tablet is powered OFF, please follow the instructions mentioned below:
- Press and hold the 'Volume Up button' and then briefly press the 'Power button' to power on the device.
- Release the 'Volume Up button' and the 'Power button' when the Samsung logo displays on the screen.
- Use the 'Volume Up button' to select the 'small android with an arrow' icon.
- Press the 'Volume down button'.
- From the Recovery Console screen, use the 'Volume button' to select 'Wipe Data / Factory Reset' then press the 'Power button'.
- Use the 'Volume button' to select 'Yes' then press the 'Power button'.
- Once the Wipe Data / Factory Reset has completed, use the 'Volume button' to select 'Reboot System Now' then press the 'Power button'.
- Allow several minutes for the factory data reset and reboot processes to complete.

GuruAid.com

you can try a factory reset
1. shutdown the tbalet
2. hold volume up button and press the power button
3. when manufacturer logo come leave the power button but keep volume up button to get to recovery mode
4. in recovery mode use volume up/down button to navigate and the power button to select
5. choose WIPE DATA / FACTORY RESET than select YES .... wait a moment then select WIPE CACHE PARTITION
6. finale step select REBOOT
keep in your mind all data will be erased

Steps on how to do the restart. -You have to turn off the system. -Then press and hold the power button until you will see a message that will popup in a window that saying "Device Options"Appears on the screen. -Then select the power off again then you can see it again.You can be able to check that it first. -Then just select okay And while holding down the -Back -Button -Then Press and hold the power button. -Until you see the Coby`s Logo -Then wait until it change to Android Logo. - Then press the Back button.And Then the system menu will appear in the screen. -And then choose the wipe data/factory reset. >Home >Menu Buttons >Press the back,the button once you select the wipe data/factory reset then just click option. Then the confirmation that you will see in the screen Is a "yes" "Option". Then Choose "yes"-delete all user data,option by using the "Home"and "Menu"buttons. Then it will perform the factory data reset. -wait until it done. -Then once your done the main system menu has to appear in the screen. -And then reboot the system. -Then you have to press the back button to reboot the system. -The system will reboot the initial factory data setting. -All the user data will be lost. -Then Give the reboot,at least for 5 minutes. -Then Do not assume the unit has frozen.

For Android tablets you can do this wit factory reset from the Android System Recovery Menu. This will erase all your data.
To go into the Recovery menu, press and hold the Power On button and some other key (Volume Up, Volume Down, Home ). The combination is different for the different models.
When you are in the Android system recovery menu, use The Volume Up/Down keys for navigation and the Power button for confirmation.
Choose "wipe data / factory reset"

To unlock your tablet, you will have to perform a factory/hard reset of the device.

Performing a hard reset will DELETE ALL DATA from internal device storage and reset the tablet back to the state before you turned on the device for the first time. Resetting the tablet does not erase any system software updates you have downloaded or any files on your SD memory card, such as music or photos.

To perform factory/hard reset please follow those steps:
1. Turn the power off.
2. Press and Hold the Volume Up and Power button at the same time.
3. When the start up screen show (Samsung logo displays on the screen), release all the buttons.
4. Use the Volume Up/Down button to navigate to "wipe data/factory reset", select with Power button
5. Select "wipe data/factory reset"
6. Select "Yes -- delete all user data"
* Allow several minutes for the factory data reset process to complete.
7. Select "reboot system now"
* Allow several minutes for the reboot process to complete.

arnova 7 g2 has no volume button..

ANDROID Tablet Freezes at Android startup screen

For Superpad VI - 10.1" Android Version 4.03, this worked for me!

1. Press & hold START button
2. When "VIMICRO" appears, Then Press & Hold the MENU button
3. The Android System Recovery <3e> Menu should appear
4. Scroll down using the Volume Key to "wipe data/factory reset"
5. Press HOME Button
6. Scroll down to "Yes - delete all user data"
7. Press the HOME Button
At this point the system will do a recovery and hard start, and will be on "reboot system now
8.Press the HOME Button
Your system should reboot normally, but you will need to enter all new data, as it has been wiped clean.