Yes, the BM818-E1, indeed. I never had time to measure the power consumption impact of this always on policy…
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So rules should be the same for the US version of the card I assume
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It should be… Run lsusb to make sure that productID and vendorID are the same.
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Understood
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How can I make it work under Mobian? I think that I have the same problem.
I never tried mobian, but it should be the same. udev is common between lots of linux.
Try sudo udevadm control --reload to force rules reload, flip the modem button off then on, wait a few seconds, and check with cat /sys/bus/usb/devices/1-1.2/power/control. It should now return “on”.
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Thank you. I moved the file into /usr/lib/udev/rules.d, cat /sys/bus/usb/devices/1-1.2/power/control returns on.
P.S: It doesn’t solve my connectivity problem. cat /sys/bus/usb/devices/1-1.2/power/control still returns on, “4G” is displayed but I can’t use Internet, I can’t send SMS.
What’s your provider? Are your APN settings set properly?
My provider is Orange France and yes, my APN settings are correct as I can use Internet, send SMS and MMS for a few minutes after a reboot. I’m going to try other suggestions mentioned in this thread.
P.S: The workaround suggested by the original poster sudo mmcli -m any --reset works in my case… just for a few seconds 
Is that a direct provider or MVNO? Aalso, good luck with your hunt for a ssettings coombinaation that wootkks fooor you.
It’s a direct provider. I’m surprised because the switching the power control from auto to on worked was enough to make things work on my Pinephones but not on the Librem 5.
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