Output Resolution: Up to 4K 60fps
Processor: Quad-core Cortex-A53 2.0GHz
GPU: Mali 450 750MHz
RAM: 2GB DDR3
Flash: 8GB eMMC
System: Android TV 6.0
Security: Widevine L1 + PlayReady 3.0
Video
VP9 Profile-2 up to 4K x 2K @ 60fps
H.265 HEVC MP-10 at L5.1, up to 4K x 2K at 60fps
H.264 AVC HPat L5.1, up to 4K x 2K at 30fps
H.264 MVC, up to 1080P at 60fps
Supports HDR10/HLG HDR processing (software upgrade required)
Sound
DTS 2.0+ Digital Out, Dolby Digital Plus
Up to 7.1 pass through
May I ask: how are you going to port firmware that Xiaomi refuses to make available even to owners of the international Mi Box? That ATV rom is only available via OTA, its bootloader is locked and the firmware is signed.
Do let me know if you get it working on the Vim. I wasn’t able to. Two of the apks didn’t install, and the stock Android launcher, which seems necessary, is not on our firmware.