There is an active community of radio amateurs dedicated to hacking the Quansheng UV-K5 and variants. I count myself as one of them. In the linked article I show how to modify the hardware and firmware of the radio to allow it to be used for digital modes such as 9600 baud FSK and 4-FSK modes such as those used by the M17 Project.
https://github.com/mobilinkd/uv-k6-digital-mod/blob/master/UV-K6.ipynb