Just to highlight my experience here, and why I probably need to get a different box.
Bought the K2 Plus as linked from the first page (
https://www.qoo10.sg/g/425687059) several months ago. It work well in a brief test and I left it alone. It was only sometime ago when I discovered that the box only works for 15 mins tops showing local channels, before the system hangs and becomes unresponsive until a hard restart by turning the main power off and waiting for 5 mins before powering it up again. And even after the restart, it barely lasts a couple of minutes before hanging again.
I suspected that it could be an overheating issue; asked about heatsink and upgraded the existing one that came with it. The hanging problem persisted, even when I left the cover open to allow quicker heat dissipation. It seems I might have a dud here and I probably need to try something like the Ukobox instead.
When it worked, it worked perfectly though. Hope to find something that works without hanging the next round.