I’ve consolidated in once place all the information you need to build customized firmware (starting from an official CircuitMess release) on a Windows system, and upload that firmware to the Ringo’s flash memory. I do not have the resources to explore this on MacOS or Linux, but I’m sure the concept is the same. The instructions are in a PDF file that can be downloaded here (it is zipped because this community does not allow PDF attachments):
Build Custom Ringo Firmware.zip (49.7 KB)
.
.
.
Read the original topic How to build the firmware.bin file if you want to see the whole agonizing path that led here. Please continue any discussion about building firmware.bin in the original topic rather than here.