Created attachment 122631 [details] ModemManager debug log The modem is detected as Bus 003 Device 062: ID 19d2:0016 ZTE WCDMA Technologies MSM However, ModemManager isn't able to read the power status, and keeps the modem disabled: Mar 29 21:37:38 denulu-tp2.denulu.org ModemManager[1316]: <warn> (ttyUSB1): port attributes not fully set Mar 29 21:37:38 denulu-tp2.denulu.org ModemManager[1316]: <warn> (ttyUSB2): port attributes not fully set Mar 29 21:37:39 denulu-tp2.denulu.org ModemManager[1316]: <warn> (ttyUSB0): port attributes not fully set Mar 29 21:37:52 denulu-tp2.denulu.org ModemManager[1316]: <info> Creating modem with plugin 'ZTE' and '3' ports Mar 29 21:37:52 denulu-tp2.denulu.org ModemManager[1316]: <warn> (ttyUSB2): port attributes not fully set Mar 29 21:37:52 denulu-tp2.denulu.org ModemManager[1316]: <info> Modem for device at '/sys/devices/pci0000:00/0000:00:14.0/usb3/3-2' successfully created Mar 29 21:37:52 denulu-tp2.denulu.org ModemManager[1316]: <warn> (ttyUSB2) response array is not empty when using cached reply, cleaning up 5 bytes Mar 29 21:37:52 denulu-tp2.denulu.org ModemManager[1316]: <warn> couldn't load Power State: 'Unhandled power state: '5'' Mar 29 21:37:53 denulu-tp2.denulu.org ModemManager[1316]: <info> Modem: state changed (unknown -> disabled)
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