Disconnect all cables from the TV box, including the power adapter.

The RK3128 is a quad-core ARM Cortex-A7 processor designed for cost-efficient 1080P media playback. While often marketed as "4K," the chipset is better suited for stable Full HD (1080P) streaming due to its Mali-400 MP2 GPU. Quad-core ARM Cortex-A7. Graphics: Mali-400 MP2 GPU supporting OpenGL ES 2.0.

Release the recovery button once the connection indicator box labeled "1" transitions to Green (indicating Connected Loader mode) or Blue (Maskrom mode) inside the RKBatchTool interface.

A physical USB-A to USB-A Male-to-Male data cable . Standard phone charger cables will not work, as you must bridge the box's OTG port directly to a PC.

32-bit (ARMv7), meaning it cannot run newer 64-bit Android applications.

Using the wrong firmware can permanently hard-brick your device. The exact firmware you need depends on the specific board revision, as even minor changes in Wi-Fi chips or memory can render a firmware incompatible.

Locate the on the TV box. It is usually hidden inside the AV (Audio/Video) jack port at the back of the device.