BIQU's 12864 adds a capacitor and a 10K pull-down resistor to the reset pin, which will cause the RST pin of the spider board (with a 100K pull-up and a 0.1uF capacitor to ground) to always be at a low level, so there is no way start up. And the seat is opposite to ours, it needs to be rotated 180 degrees. After rotate 180 degrees, remove R1 and C6 on the screen, it can be successfully lit.