How to install firmware:
1. After downloading the upgrade, you must first unzip the file.
2. After unzipping, put the ".bin" file on your SD card. Your SD card must be 4GB or smaller (for the 6" EZ Reader) or 16GB or smaller (for the 5"PocketPRO) to do this.
3. Turn off your EZ Reader, and then insert the SD card into your EZ Reader.
4. For the 6" EZ Reader: first holding down the silver "volume up" button on the right side of the EZ Reader, then press the ON button to turn on your EZ Reader. For the 5" Pocket PRO: while holding down the top "page turn" button on the left side of the device, then press the ON button to turn on your device.
5. Keep pressing and holding the buttons until you hear a beep-beep sound, then release.
6. The screen will display a message to ask if you want to update firmware, so press the Menu button (located at bottom right of your unit) to confirm, and you're done.
From
http://theezreader.com/html under support.