Upgrading steps

1. Install the upgrade tool

1. Unzip the folder
   

2. install the soft ware
   

3. choose”next” in below picture

5. 
   

6. 
   

7. 
   

2. Then you can see icon
   at your desktop，Click and Open it, it will be the following interface：

3. Click the icon
   ，Select the key file that comes with the upgrade tool
   

4. Select the corresponding system firmware and open it

5. Click the icon

6. You can see the following screen

7. Tablet PC is now connected to your computer via USB cable:

Make the tablet PC in the off state, long press the volume "+" key, and then connect the USB cable，After that continuously pressing the powe power button, until
to
Release the hand which press the button，it will change
to
，and will automatically run the upgrade .

At this point, you can see the percentage of progress

8. After the upgrade is complete, the tool at the bottom right corner of the display screen is upgraded successfully
   

9. Disconnect USB and the start to open tablet

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