Hold the "Reset" button (usually hidden inside the AV port) while connecting the device to your PC via USB.
Variations exist, but recent stable firmware is often based on Android 7.1 Android 10.0 Memory/Storage: r29 mxq lp3 v23 firmware top
Open your TV box and confirm the text "R29-MXQ-LP3-V2.3" is printed directly on the green PCB (board). Required Tools: Rockchip Driver Assistant: To allow your PC to recognize the TV box. Rockchip Android Tool Batch Tool: The software used to "flash" the image file. USB Male-to-Male Cable: Hold the "Reset" button (usually hidden inside the