> On Jun 13, 2023, at 6:04 AM, Aleksander Morgado <aleksande...@chromium.org> > wrote: > > On Tue, Jun 13, 2023 at 1:43 AM Alex Ballmer <al...@meshplusplus.com> wrote: >> >> After upgrading an EM160R-GL modem via QFireHose from firmware version >> EM160RGLAUR02A07M4G to version EM160RGLAUR02A07M4G, almost all functions >> fail with ‘Invalid transition’. The modem power state is listed as "power >> state: low” via mmcli. On the former firmware version everything was working >> fine. >> >> This is currently happening with modemmanager 1.18.8 using mbim via the >> qmi_wwan driver on openwrt with linux 4.4.60 and libmbim 1.28.4 >> >> I tried manually enabling it (in case it was FCC locked) via mbimcli >> --device-open-proxy --device="/dev/cdc-wdm0" --quectel-set-radio-state=on, >> but this also had no effect. >> >> What additional steps would I need to take to debug this? > > Very likely that they may have changed the FCC unlock algorithm in the > newer firmware version :/ > > -- > Aleksander
The same firmware version has worked on other modems of the same model. This appears to be a problem with a specific batch of modems(?). Is this something that is likely to occur? Also in my testing the modem is not FCC locked, its stuck in factory-test mode, as verified by AT+QRFTESTMODE?. Attempting to leave factory-test mode with AT+QRFTESTMODE=0 doesn’t seem to have any effect
