thru the screencap here…
…there seems to be a hint that the SHARP 1st Global MiniLED TV is using a higher-end of MT9612 variant, identified as MT9685 or MT9688.
i couldn’t find much info of MT9688, but there is some info about this SoC, as shown here:
the based MT9612 SoC is sort of mid-high end SoC that doesn’t support CalMan calibration software like Pentonic700(MT9618/9653) do.