I am having trouble setting up cellular connection to T-Mobile with a Huawei E220 stick. It used to be able to connect but it does not connect any more. PIN is disabled, and stick works fine under Windows. I think it might be related to the fact that Ubuntu Modem Manager misidentified the stick as E176?
Please advise.
p:~$ lsusb | grep Huawei
Bus 001 Device 005: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E230/E270/E870 HSDPA/HSUPA Modem
p:~$ mmcli -L
/org/freedesktop/ModemManager1/Modem/0 [huawei] E176
p:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic
p:~$ nmcli d
DEVICE TYPE STATE CONNECTION
eth0 ethernet connected Wired connection 1
l4tbr0 bridge connected l4tbr0
ttyUSB1 gsm connecting (prepare) T-Mo
dummy0 dummy unmanaged --
rndis0 ethernet unmanaged --
usb0 ethernet unmanaged --
lo loopback unmanaged --