all pictures are from CEDDY47's teardown movie.
- around Game Controller connector (this is i2c1 /i2c2)
There are more test or SMD pad , for test or feature extention... ?
- Power circuit has upgraded and UART Pad is appeared
Protection parts is inserted into HDMI VCC output Line.
And more Capacitor and breeding resistor on Power Line.
- More capacitor place and little pads for power circuit.
- Alternate UART port (or GPIO PB0 /PB1 ) are alived same as NES mini.
It can be worked as external communication.