Use the RT809H Programmer to read or write the EMMC data.
EMMC programming requires technical skills and precise soldering. Proceed at your own risk. Download RT2982 PD811 EMMC Pinout rar
Solder your jumper wires carefully to the CLK, CMD, and D0 points. Connect VCC (3.3V) and VCCQ (1.8V) either via the programmer or by powering the motherboard. Use the RT809H Programmer to read or write the EMMC data