[wallcraft]

I don't have a Mac, but the instructions say:

HOW TO INSTALL (update will take max. 10 minutes)

***BEFORE YOU START:***


- BACKUP/COPY ALL CONTENT FROM YOUR BEBOOK TO YOUR PC!!
- MAKE SURE YOUR BEBOOK IS FULLY CHARGED

* Download the update by clicking the orange button
* Check the filesize of the downloaded file. febupdate.rar should be : 37,9 MB (39.753.082 bytes)
(To check : right click the downloaded file and choose : "properties" it will show the actual size. Don't use the update if the filesize is different.)
*Unpack the febupdate.rar file using WinZip or WinRar. (free trial versions: http://www.winzip.com/ and http://www.rarlabs.com/); The filesize of the unpacked file (V3update.bin) should be 55,0 MB (57.671.680 bytes).
* Copy the unpacked file 'V3update.bin' onto the root of an SD card. (SD cardsize should be larger than 128MB, but no greater than 1GB.)
* Turn off the BeBook
* Insert the SD card into the BeBook eReader.
* Press and hold the V+ (volume up button) and turn on the BeBook eReader.
* When the update interface appears, press the "OK" Button to start and wait until it's finished.
* Restart the BeBook.
Done!

So, you need to UNZIP the downloaded file on your Mac and then copy only the resulting file 'V3update.bin' onto the root of an SD card (this card can already be installed in the BeBook if you want, but don't put the file in the BeBook's internal memory). The "root" is the initial folder on the SD card, containing all the other folders and files.

I think the SD card needs to be 1GB or less, or at least the V3update.bin needs to be in the 1st GB of the SD card (which is easiest to arrange with a 1GB card).