⚠️ Many users report that the built-in OTA updater says “No updates available” even when newer firmware exists. This is common with Allwinner H2 boxes.
After the update finishes and the device reboots, do not be alarmed if the screen is black or channels are missing. You usually need to reset the defaults:
Some developers offer Android TV (AOSP) custom ROMs for H2 boxes (e.g., slimBOXtv for Allwinner H2). These often:
Search for slimBOXtv H2 – but ensure it supports MST999 PCB.
Based on recent changelogs (v3.2 to v4.0 as of this writing), users report:
One user on the Qmax subreddit wrote: “After the latest qmax mst999 h2 mini 4 software update, my Cinebench score jumped by 12% and the fan noise during gaming is way more bearable.”
If the manufacturer has pushed an update to the satellite, you can update directly without a USB.