So I have a T520 with the whitelist removed. I have bought and installed a Sierra Wireless MC7700 to put in it, and I’ve gotten the drivers installed, windows 10 sees the card in the settings, but no matter what I do, I absolutely cannot turn it on. It is stuck “Turned Off”. I diagnose it in Network Adapters and it says the physical switch is off, but this laptop does not have a physical switch for the mobile card.
I switch over to Ubuntu to try it, and I’m facing another different issue. No matter what I try or what combination or order that I hook my antenna wires up in, I have 0% signal to nothing. I know the antennas work, because I also have a F5521gw that works perfectly fine with AT&T and connects.
Does anyone have any ideas for what is going on?
EDIT: In ubuntu, the modem actually shows it’s state as Disabled, when I try to enable it, I get this error:
sudo mmcli -m 0 --enable --timeout=120
error: couldn’t enable the modem: ‘GDBus.Errorrg.freedesktop.libqmi.Error.Protocol.HardwareRestricted: Couldn’t set operating mode: QMI protocol error (83): ‘HardwareRestricted’’