I couldn’t set frequencies around 100MHz using SDRConsole, though I could from LimeSuiteGUI using default settings. There were significant differences between the PLL settings that SDRConsole was using and the defaults.
It turns out that SDRConsole has an ini file containing these settings, so I wrote an ini file containing the defaults from LimeSuiteGUI and temporarily replaced SDRConsole’s ini file for the Mini. With the ‘default’ settings, I could then successfully set frequencies around 100MHz.
First, I’d check that you can set 100MHz from LimeSuiteGUI after unplugging/replugging the Mini and setting everything to defaults. If that fails, I’d guess you have a sick Mini.
Then, I’d take a look at the settings that gqrx is using by exiting it, then starting LimeSuiteGUI , connecting to the Mini and using the Chip to GUI function. See if the PLL settings are different. If so, try to find out where gqrx is getting them from… and try to make gqrx use the default settings.