Mecool KM2 to play video from USB at 4k with 120Hz

by _robinsunny

Hi everyone, I am a complete child in this arena, so excuse any dumb questions (probably all of them haha)

So i just got a Mecool KM2 (my first android box) and from my understanding, it has a HDMI 2.1 port. I also have some video files on a USB drive (mostly .mkv and .mp4 files) that are 4K in resolution. I can use the YouTube app to watch some videos in 4K 60Hz which looks great on my tv, but my usb files don't have that same buttery smooth motion. My tv is capable of 4K 120Hz.

These are my questions:

  1. Is it possible to get the USB video to display on my TV at 4K on 60Hz or 120Hz?
  2. If so, how?
  3. Does the video file itself need to be shot at 60 or 120 fps (i think the file I have now is 24fps, but not entirely sure)
  4. Do I need to download a certain app for the store to do something like that or can i change something in the KM2's settings?

Thank you to anyone and everyone in advance for helping me thru this. I might have more questions as the conversation unfolds

clarkss12

Your 4k media should be using USB 3 drive and connected to the USB 3 port on your box. I don't think the FPS matters.

Kodi_Fan_Omicron

Don't get hung up on certification standards like HDMI 2.1 and/or 4K 120Hz. If you haven't found out already, the HDMI 2.1 standard can be given out to a device that only meets one of the new certification criteria, meaning a device with an HDMI 2.1 port may not have all the features that the HDMI 2.1 standard allows.

Your specific Problem seems to be that your 4K 24 FPS video is not having buttery smooth playback, which may be due to Judder, which may be fixed if you change the KM2 setting to use the 4K_24hz display setting before watching your problem video.

If Judder is the problem, it is best to adjust the TV's settings, read this article by Ratings.com to understand Judder:

May need to search their site for your specific TV to find the correct settings to remove Judder.

If the problem is instead due to a codec decoding problem like using a high-bitrate file (ie. greater than > 150Mbps bitrate), like another comment stated; you also need to be using USB-3.0 storage drive and the KM2 device's corresponding USB-3.0 port to playback high-bitrate 4K files.