I have tried to add the SPI capabilities to the device tree. I have Decompiled the device tree under /boot/ext ; added an SPI sub-node; copied back the compiled device tree file; and rebooted the board. The board never came back: no video on HDMI channel; LEDs are on correctly.
I tried to enter Recovery mode (the board is on ; while pressing the REC button I toggle the RST button and then after two seconds more release the REC buttons)- and actually I do not know what to expect (no video on HDMI). The USB recovery cable is connected to a PC running UBUNTU 16.04 - but I do not see any indication for what the USB supposed to do.
Any help will be appreciated.