You must flash a firmware specifically designed for the EP_68 board. Flashing the wrong one can permanently damage your device.

The firmware successfully flashed the processor, but it lacks the correct kernel drivers for your specific Wi-Fi chip.

You cannot flash this firmware via SD card safely. You must use a and a Male-to-Male USB cable .

EP_68 (or EP_68_V1.x). This specific identifier is stamped directly onto the green circuit board inside the case.

A file ending in the .img extension specifically compiled for the RK3128 EP 68 board. Step-by-Step Firmware Flashing Guide