Unlock MiTraveler or other Tablets

There is very little helpful information about the MiTraveler device.  So I will attempt to save you hours upon hours of search and experimenting.

Just to clear this up in your mind:  I was not able to have any success using the reset button or any of the other key combinations to reset the device.

I was able to unlock this tablet for a client using the following instructions (It is very technical but it works!):


Requirements

• PC or Laptop with a working OS (I used Linux, however you can use OSX or Windows) 
• Android SDK.http://developer.android.com/sdk/index.html
• Connect android device via usb to your PC 

You will be using adb commands from the SDK to reset the device locks.


To run the adb-commands you have to change to the platform-tools directory in your android-sdk (/path/to/your/android-sdk/platform-tools).


Now you can use the following commands:
adb devices # verifies your device is connected
adb shell
cd /data/data/com.android.providers.settings/databases
sqlite3 settings.db
update system set value=0 where name='lock_pattern_autolock';
update secure set value=0 where name='lock_pattern_autolock';
update system set value=0 where name='lockscreen.lockedoutpermanently';
update secure set value=0 where name='lockscreen.lockedoutpermanently';
.quit
exit
adb reboot

Now your device is unlocked. If not use adb shell rm /data/system/gesture.key

Resources for this post:
https://maxoberberger.net/blog/2013/08/unlock-android-device-using-adb/
http://my.oschina.net/zhuzihasablog/blog/97924