Pushing volume and power button not showing anything,

hi John.
i think you will have to do a hard reset to sort this out.
Just tap the Power button to select Reboot System Now.

1. Make sure tablet is powered off.
2. Hold down Volume + button and Power button at same time.
3. When screen comes on let go of Power button.
4. When the large Android shows on screen let go of Volume + button.
5. Use Volume - button to scroll to Wipe Data/ Factory Reset.

More items...

What do I do if I forgot my password to unlock to my tablet? - Trio ...

https://support.triotablets.com/.../201746559-What-do-I-do-if-I-forgot-my-password-to-...

How do I unlock my tablet if I forgot the password?Manual Factory ResetTurn off your Android device. ...Press and hold the "power", "volume down", and "camera" buttons simultaneously. ...Release the buttons once your Android device is powered on. ...Scroll using your "Volume up and down" button until you find the "wipe data/factory reset" option.More items...Recover Android Device in case of Forgot password/pattern unlock an ...visihow.com/Recover...in...Forgot_password/pattern_unlock_an_Android_deviceSearch for: How do I unlock my tablet if I forgot the password?

or before you do anything go to this link and have some more off a read up.
cannot remember my password to get into my tablet Google Search

Turn off tablet. Press and hold the power on button and the volume down button. when it comes on release the power button keep holding the volume down button, when it shows the restore screen let go of the volume down button. then use the volume up down button to choose what you want to do . Should fix it,

1) Power down your tablet.
2) Tap the power-on button and volume down button at the same time
3) Tap and hold the power-on and volume down buttons until you see the android alien icon
4) tap the power-on and volume up again at the same time until you see the System recovery menu.

Android System recovery menu

Volume up/down to move highlight;
power button to select.

Options are below

reboot system now
apply update from /sdcard
wipe data/factory reset
wipe cache partition
recovery system from backup
update rk image from /sdcard

select (wipe data/factory reset) bush pushing the power button to select it and restart the device after.

You have got to hold down the power, volume up and down at same time, when its obvious it turns on the release the buttons and then ur boot menu should appear

read it here

Digiland DL700d Hard Reset Procedure

Many people say to push and hold down the Volume(+) and Power button at the same time. Push and hold for as long as twenty seconds until you see a green android with green text.

But, on some devices and some Android O/S versions it takes pushing and holding the Volume(-) and Power button and holding them both down for twenty seconds or so or until you see the green Android and text screen. This will show the Wipe Data/Factory reset option. Select this option by scrolling using the Volume(+) button and engage using the power button. Some devices give you a second screen with a list of *no no no no no* and one line of Factory Reset. Again, scroll to the Reset option using the Volume(+) option and select it using the power button.

If the above doesn't work, either your battery is dead or your device is dead.

some devices need you to press power button + both volume up and down.

Try holding power and both volumes if it reboots normally try again but let go of power when the Android pops up

The trick is sliding the display lock switch at the exact right moment, otherwise it will not engage. Here are the steps that have worked for my self and several other Xoom FE owners:
1. Power off the unit - if not already
2. Hold down the "Down" volume button at the same time you hold down the power button for 3-5 seconds.
3. While still holding down the "Down" volume button, release the power button and toggle the display lock slide a couple of times (located next to the volume controls).
4. The display should now show "Booting Recovery Kernel Image" and then the Android Robot will be displayed when the unit is in the rebooting phase.
5. Since the device is being Reset (erased and re-imaged), it is normal to see "Please wait for pre-load data" and this process takes about 6-8 minutes. The Xoom FE is now being Factory Restored to the original image.

You'll 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 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.
This will reset you device to factory settings, however anything on your SD card will still remain.
At this point you will need to start fresh as if you just bought the device -- register with your email address, etc.

Mine did the same thing, son told me to hold the power, home button and volume up button for about 10 second and it would reboot, which worked for me.