Ematic eGlide Pro 2 Manual page 45

Click "Finish".
Release the MENU button after the icon labeled "1" has turned
green, see the picture shown below:
Then click "Upgrade" to start the updating process. During this
process lots of information will be shown in the update status box as
shown in the image overleaf.
NOTE: While the system is being updated, the device must not be
operated in any way.
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