Built in debug console to usb conversion with a micro-usb port on the side. This would avoid needing to switch between usb and headphones, fix incorrect voltage on serial console cable (should be 3V, not 3.3V and not 5V!), eliminate the need for a special debug cable in the first place, fix the danger of connecting a serial cable without an opto-isolator, and prevent possible noise on audio lines from injecting garbage on the serial port that prevent u-boot from starting.
This only requires a simple chip and connector, it looks like there is plenty of space for it.
Rotate touchpad 180 degrees so that the physical buttons are under the top corners, rather than the bottom corners.
This only requires a simple chip and connector, it looks like there is plenty of space for it.
Rotate touchpad 180 degrees so that the physical buttons are under the top corners, rather than the bottom corners.