If you are looking for a firmware update for your Icarus Go e-reader with a DRIGLxxxxxx serial. You have to visit the following site:
http://www.icarusreader.com/downloads-go
Dont go to icarusreader.com and “downloads->firmware->ICARUS GO (E600BK) FIRMWARE ” because non of those firmwares works with this version of the Icarus GO. I read somewhere that the DRIGK110000-DRIGK999999 firmware should be compatible with DRIGL devices but this is not the case! You won’t brick your e-reader but after the update the screen doesn’t work anymore. You can still reflash the reader with the correct firmware.