I will not take story of duo with story abt solo2.
But the story is similar
several users of perhaps several thousand or more
who have problem declaring the general failure.
It does not work that way.
Solo2 is different receiver and HW
I do not agree to those who are trying to present individual problem as a general problem.
For that there are no elements with two or three cases that I have seen so far, including several forums that I visit.
It does not work that way.
Only when I saw dozens and hundreds of cases, then we can take it as a general problem.
All those who are engaged in radio technique are well aware that the possibility of
that some of the oscillators is not well tuned to the frequency especially due to temperature effects.
Until the contrary is proved that for me remain individual case which I now count on the fingers of one hand.
These boxes should be returned to dealer and ask for good box.