I have a NanoPi Neo Air (Allwinner H3 SoC) with onboard wifi and a serial interface. Unfortunately during some late hour hacking I managed to accidentally connect 5V onto its TX pin, I think effectively screwing up its UART0. I can no longer connect to it via a USB to TTL Serial cable.
Looking at the NeoPi Nano Air's pinout diagram, it seems to have more UART devices (UART1 and UART2 even) so I wonder whether there's a way to set up armbian to communicate via these during boot?
Another idea I had was to try to bypass the UART completely and to hook up the board via the wifi. Now, without having any access to a serial console, I need to try getting armbian to connect to a wifi automatically and run an SSH service so that I can control the board.
How does one go about this? Do I need to get a bootloader config in place somehow? How do I do it without having another Allwinner H3 device?
Any help would be appreciated.
Thank you in advance.