Several platforms and communities are dedicated to providing firmware and support for TV boxes like the MX9 4K:
Before starting, you must verify your hardware to avoid "bricking" (permanently breaking) the device. firmware tv box mx9 4k android 712 hot
If you just need a for a file or post:
The is a classic example of “you get what you pay for.” The firmware is functional but flawed, and the heat problem is not an anomaly—it’s a design compromise. If you already own one, try LibreELEC (turns it into a dedicated Kodi box) or add a small USB fan. If you’re shopping new, spend $15–20 more on a Xiaomi Mi Box S or onn. Google TV 4K for a cooler, properly supported device. Several platforms and communities are dedicated to providing