Chapter 4 - Operating Instructions
2.Prepare any brand of microSD card up to 8GB. Please make sure the microSD card is unlocked and there it has at least has 500MB of free space available.
3.Copy the whole “firmware” folder to the root directory of micro SD card. Please do not change the contents of the files including file names and folder names.
4.Please verify that Libre Air’s battery is charged so the firmware upgrade will not be interrupted.
5.With the Libre Air powered off, insert the Micro SD card into Libre Air’s microSD card slot.
Firmware Upgrade Procedure:
1.Choose “Firmware Upgrade” and press [Enter] to enter, a popup message will appear saying “OK?”, press [Enter] to continue. Another popup message will appear asking “System Message Reboot and upgrade now?”, press [Enter] and the following message will appear on the Libre Air’s display:
While performing Firmware Upgrade, all eBooks and data may be deleted! Press [OK] key to perform Firmware Upgrade, or press [ 
] key to cancel.
Figure 1
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