Hi,
I have just had the same issue on 2 devices (tinySA Ultra) after updating the firmware to the latest version. Both units now fail self test and re-calibration; previous to the update they both worked fine.
1 unit I have confirmed by supplier (elecshop) to be an official device.
Would really appreciate to determine if this is a hardware fault or can be fixed.
Attenuation test passes as per wiki advise.
self test 3,4,7,10,11 level critical and test 14 fails signal level
Level calibration fails on test 7 directly.
Any assistance welcome
Regards
Simon pa2sq
