Here is a video showing how to do the upgrade process for the rs-97 device to the new gmeu2x firmware.A big thanks goes out to Ruffnuts for his video detailing the upgrade process below enjoy.
Source https://drive.google.com/file/d/1u9zimqDhwsBrH-XjrBKurfbFPGpUi5xF/viewRS-97 Upgrade