On Tue, 2025-03-18 at 17:49 +0100, u...@moosheimer.com wrote: > Dear Community, > I'm not sure if this is the right place to ask my question. If this > is > not the case, then I apologize and ask for a hint where I can ask it. > > I am using the Banana R4 with OpenWRT 24.10.0 r28427-6df0e3d02a / > LuCI > openwrt-24.10 branch 25.076.76243~9c000ff. > > Two weeks ago I bought and installed the Quectel RM500U-CNV. > Everything > worked fine and the modem is recognized and addressed via MBIM. > But unfortunately the ModemManager always says: > > 'Cannot change modes: only one combination supported' > > In the last few days I have read several times that the Quectel > RM500U-CNV is probably not supported by ModemManager. > Is this correct?
I would expect the device's MBIM mode to work with ModemManager. ECM mode won't currently work (though there is a branch under review for that). Would you be able to run ModemManager with the "--debug" option and get the log output of when you experience the problem? That would help figuring out what the issue is. Thanks, Dan > And if so, will this change in the foreseeable future? > And if not, can anyone give me a beginner's hint on how to get the > modem > to work or whether I need to buy another one? > > - Uwe > > > >
