Hi, I'm Bernie and I'll be the technician helping you today. Sorry to hear you're having this issue.
If you Have "USB Debugging" turned on you can Use ADB (Android Debug Bridge) to unlock it. download the Android SDK
) and install it. you'll also need the USB Drivers(HERE
1. Plug the tablet into the computer via USB and turn it on/boot it up.
2. Open a Command prompt(Start - RUN -type CMD in the run Box)In the dos box change directories to your Android SDK /tools/ folder.
3. Enter ADB commands. in the dos box type "adb.exe"
This will let you know if ADB can talk to the tablet. If you don't get any devices reported back check the USB cable
If device found Type:
adb -d shell
# sqlite3 data/data/com.android.providers.settings/databases/settings.db
sqlite> update system set value=0 where name='lock_pattern_autolock';
it should now boot WITHOUT the lock pattern.
I'll stand by for your reply.