Unfortunately, LEGO has recently announced that after 24 years, the Mindstorms line of Robotics Kits is officially being discontinued at the end of this year. For this reason, the 51515 Robot Inventor Sets will soon no longer be available. However, LEGO has confirmed that the Spike Prime kits, or the educational counterpart(s) of the Robot Inventor, will continue to be produced. Therefore, I might have to start buying these kits in lieu of the Robot Inventor kits as demand for the retired kits begins to rise. The good news is that the Mindstorms Robot Inventor and Spike Prime kits both share identical hardware, the only difference being the colors and assortment of elements, both of which can be easily circumvented.
However, the Robot Inventor software has several additional features that Spike Prime does not, most notably the recently-enabled Bluetooth Low-Energy (BLE) Daisy-Chaining, or Hub-2-Hub Communication. I currently have a Robot Inventor Hub with an up-to-date version of its firmware installed, and I am strongly considering buying a Spike Prime Hub to use with it for larger models. Because it is currently not yet possible to directly program the Spike Prime Hub with the Robot Inventor Software, I would like to ask if it is possible to re-flash the Spike Prime Hub with the Robot Inventor Hub's firmware so that the Spike Prime Hub will behave the exact same way as a Robot Inventor Hub while retaining the same functionality (especially the ability of Hub-2-Hub communication) of a Robot Inventor Hub. And if so, how?