After checking the low RF output in the generator function, I ran the self test. But the self test failed, stopping at item 3 and not continuing.
I am attaching a photo of the test attempt.
I have had this for 5 years and have never updated it. But it has always worked perfectly.
The current firmware is version: tinySA4_v1.4-49-g4f5396a.
Model: TinySA ULTRA
I would greatly appreciate any help.