The HI3798 comes in several variants—, HI3798CV200 , HI3798MV100 , HI3798MV200 , and HI3798MV300 . These are not interchangeable. Flashing the wrong variant can hard-brick your device.
the "Reset" button (usually hidden inside the AV port). Plug in the power while still holding the Reset button.
The HI3798 chipset is aging, but thanks to dedicated developers on 4PDA and Telegram, firmware is still actively released. Whether you are trying to fix a boot loop, recover lost Wi-Fi, or simply remove the pre-installed malware from your cheap IPTV box, the correct transforms a sluggish device into a capable 4K streamer.