Since some CS users certainly also use the Jeti 1501, I would like to point out that the current firmware version 2.02 from May 8, 2023 is not compatible with older spectraval 1501 and one should rather refrain from an update at the moment until the matter is clarified.
With my 1501 from 2017, the update could be installed without problems, but then the 1501 no longer boots and must be repaired after consultation with Jeti. However, they are working on a compatible version.
Peter