He is right that the 585 only supports a max of 1080p. Why they install a 4k player who knows. Even the new update comes with a 4k player.
So can scratch that one off as an issue.
1:) Played a few video's off of Plex server it worked good only froze once and it was a short buffer. Not sure if it was cause the file was being transcode or buffer from the 585.
2:) Played a few more file types all 1080p. mkv, mp4 both with h264 and h265. No problems running from flash drive.
3:) Tested Exodus, AceStream, Bob, Maverick TV, YouTube, UK Turk, Netflix, and Real Movies.
4:) Addon's loaded ok and ran. I only played 3 video's from each for 15 min to test. FF RW Stop and Pause and Played within all of them.
Real Movie gave me a few issues with buffering and one video locked up and required a reset to correct. I have 120Mbs download so it wasn't my speed as a speed test at the time on two different servers gave me both 120 results. It was more then likely the source website.
5:) When I tried to install Plex app from store it wouldn't load for some reason but once I downloaded the apk from the web it installed and worked fine. I uninstalled it later and then tried to install from store again and this time it took first try.
6:) Took the box off of the network cable and went to WiFi. 2.4ghz channel it couldn't keep up with the 1080p videos streaming but the 720 or lower were fine again just a limitation of the box not the firmware.
7:) Last note to mention is to explain what I meant by installing the updated firmware by dashboard. I meant I tried to install the firmware from within the MyGica system. So I was running Kit Kat I allowed it to load then went to the system update and tried to flash it from the usb flash drive. It locked up as if it was bricked and wouldn't go past the MyGica logo screen after it restarted. To fix this I downloaded the Flash backup software off the MyGica support site. Aka this site lol. Once I flashed the Kit Kat back on I tried again and again it failed from within the Dashboard. Again I re-flashed with Kit Kat and then this time put the new flash for lollipop onto the SD card formatted to Fat32. I unplugged the power from the box and flipped it over and held the Upgrade button with a pin while plugging it back in. This took me to the recovery screen where I then flashed it to the new lollipop update. It took the first time. It does stay on the MyGica screen for a while before finally starting to add the apps and finish setting up but not no 20 min when it was bricked before lol. After it is updated and setup and you restart again. It again holds on the MyGica screen for a min or so before loading all the way up. When you add acestream apk to the box it extends the wait time to nearly 2 min because it now has to load before it finishes loading everything else.
8:) Overall from what I have tried everything is running great. A few hiccups requiring a restart but nothing that really makes me want to go back to the Kit Kat version.
Everything will always have bugs somewhere but to me this seems overall stable.