I gave my little sister a trio 7"tablet and she dont remember the patter or google account to unlock it

Found these two youtube videos; hope helps you


TRIO Stealth G2 with WiFi 10 1 Touchscreen Tablet

TRIO 10 1 g2 Stealth Elite Android Tablet Update 2 Testing Recovery Mode...


You can find more info if you input google search for

Youtube Mach Speed Trio Stealth G2 Tablet

If you set a pass code (or pattern) that you cannot remember, please enter the wrong password (10-20 times) until you are prompted to sign in via your google account. Please note, this will only work if you have already setup your google account on the tablet. If you have not set up a Google (or Gmail) account on the tablet, you will have to perform a firmware install, which will revert the tablet back to factory settings.

How is it locked? Slide, code?

You should look at a Google Chromecast.
This is an HDMI device, that you can stream from your android to the ChromeCast connected to your TV.
They are actually quite cheap to purchase.
Then you use your tablet to control it.
It should also work with Netflix.

If you set a pass code (or pattern) that you cannot remember, please enter the wrong password (10-20 times) until you are prompted to sign in via your google account. Please note, this will only work if you have already setup your google account on the tablet. If you have not set up a Google (or Gmail) account on the tablet, you will have to perform a firmware install, which will revert the tablet back to factory settings.

Support Troubleshooting Guide

If you set a pass code (or pattern) that you cannot remember, please enter the wrong password (10-20 times) until you are prompted to sign in via your google account. Please note, this will only work if you have already setup your google account on the tablet. If you have not set up a Google (or Gmail) account on the tablet, you will have to perform a firmware install, which will revert the tablet back to factory settings.
Support Troubleshooting Guide

I fear a factory reset is your only option. But that's not much of an issue if you use Google backup as everything will be downloaded again when you first log back in to your google account.

Hi check out E/BAY. .. cheers

If your having problem like this I suggest that you perform a hard reset. To hard reset just simply follow this step.
And remember reseting can delete your all access data specialy passwords and code.
To hard reset:
1. Turn off the whole system.
2.Hold together buttons: Power + Volume Down. In several second until logo appear on the screen.
3. Release the buttons. And without asking and without notice System will automaticaly doing a reset.
If this will not succesfull, try to create google account on PC. Then remember all information you've made, the email and password. You said system asking you to sign in to google. Use all information you've got to sign in.
Note: The google method is not working on other tablet, but most of it solve the problem. Then you should go to area where you have an a access of wifi, place where can you connect a wifi. Internet connection is realy realy needed.
Hope it will help.