Updating FlightBox FW v1.4r5

Where can I find instructions to update my Flight/box ADS-B running Firmware v1.4r5? I have tried the FlightBox ADS-B app on my iPhone but when I go through the steps to “Install Current Stable Firmware” I get a message on the phone that an update has been loaded, then the Flightbox reboots, but an update did not take place.

The FlightBox functions well, except it perodically drops a connection with the iPad. I suspected that it was caused from the FlightBox getting too hot, but it maybe other issues.

Bret C
Stinson 108-2