Before downloading any firmware, physically inspect your device. Do not rely on the sticker on the plastic case.
To help you find the exact file you need, could you tell me: What is the (boot loop, frozen, slow)? What Android version did it have previously? Mxq Rk3229 Emcp V3.1 Firmware
Try using a different version of FactoryTool or Android Tool. Before downloading any firmware
The is a highly specific piece of software that cannot be swapped with standard MXQ firmware. By carefully identifying your PCB version, using the correct Rockchip tools, and verifying your Wi-Fi chip, you can successfully unbrick or upgrade your TV box. using the correct Rockchip tools