How hard reset aoc mg70sr-4 ?

Settings --> Resent menu 9.

Reset settings menu--> Master Reset options YES --> enter your 4 digit security code. The default code was 0000 unless you changed it. This will delete the phone entries. Security menu allows changing security code. You did backup anything you wanted to save, right? Note that customer service may remotely repair some phone problems.

http://www.hard-reset.com/lg-410g-hard-reset.html

Try instructions in the link:
How do you reset your coby kyros if ive forgot the password

Warning:- Hard reset will Cost your data, remove the microSD card
Hard Reset the Tablet
1- Switch Off your Tablet
2- Press and hold Power and Volume down key (in some case it can be Volume up)
3- Android logo with exclamation mark will appear, select recovery mode
4- Select Wipe Data
5- Select Yes- delete all user data
Now Tablet will be free from pattern lock

Different Hard reset factory wipe methods for Android Tablet

Perform a soft or hard reset on your Asus Eee Pad Transformer Android tablet if it is not functioning correctly. Here's how.

Soft Reset

You would want to soft reset the device in the event that it has become frozen or unresponsive. To do so, press and hold the Power button on the top-left side of the device for about 10 seconds until the device powers off.

Hard Reset

A hard reset (also known as a factory reset) will clear all data and settings from the memory of the device and set it back to factory default settings. You can perform hard reset on the Asus Eee Pad using the Android OS menus or the hardware buttons.
Method 1 1. Power the Eee Pad off.
2. Press and hold the Volume Down button on the left side of the device, then press and hold the Power button.
3. Continue to hold both buttons until a bootloader screen appears.
4. Wait for the prompt that says to "Press <VOL_UP>" then press the Volume Up button to start the process.
The Asus Eee Pad will complete the hard reset process and reboot into a factory default state.
Method 2 1. Open the Settings app.
2. Select Privacy.
3. Choose Factory data reset.
4. Select Erase tablet.
5. Select Erase everything.

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Do a firmware reset on it.

1. With the device off, press and hold Volume Up and Power.
2. Release the Power button when you see the Samsung logo, but continue to hold Volume Up until the recovery screen appears.
3. Use the Volume buttons to navigate the menu and select wipe data / factory reset. Press Home to choose the selection.
4. Press Volume Up continue.
The Galaxy Tab should then go through the hard reset process.
If you have access to the OS, you can also perform a hard reset in Settings.
1. Open the Settings app.
2. Select Privacy.
3. Choose Factory data reset

shutdown the phone then entre recovery mode and use those commands ( wipe data / factory reset ) and ( wipe cache partition

You will need to do a factory reset:
1. With the device off, press and hold Volume Up and Power.
2. Release the Power button when you see the Samsung logo, but continue to hold Volume Up until the recovery screen appears.
3. Use the Volume buttons to navigate the menu and select wipe data / factory reset. Press Home to choose the selection.
4. Press Volume Up continue.

i have to many pattern attempts, how I can reset hard , AOC tablet.