That's weird. I have no sources that could provide a kernel. I'm attaching my sources.list.
See these excerpts of dpkg.log: 2021-01-04 12:05:31 install linux-image-5.4.0-59-generic:amd64 <none> 5.4.0-59.65 2021-01-04 12:05:31 status half-installed linux-image-5.4.0-59-generic:amd64 5.4.0-59.65 2021-01-04 12:05:32 status unpacked linux-image-5.4.0-59-generic:amd64 5.4.0-59.65 ... 2021-01-07 06:33:17 install linux-image-5.8.0-34-generic:amd64 <none> 5.8.0-34.37~20.04.2 2021-01-07 06:33:17 status half-installed linux-image-5.8.0-34-generic:amd64 5.8.0-34.37~20.04.2 2021-01-07 06:33:17 status unpacked linux-image-5.8.0-34-generic:amd64 5.8.0-34.37~20.04.2 ... 2021-01-09 12:02:45 install linux-image-5.8.0-36-generic:amd64 <none> 5.8.0-36.40~20.04.1 2021-01-09 12:02:45 status half-installed linux-image-5.8.0-36-generic:amd64 5.8.0-36.40~20.04.1 2021-01-09 12:02:45 status unpacked linux-image-5.8.0-36-generic:amd64 5.8.0-36.40~20.04.1 ** Attachment added: "sources.list" https://bugs.launchpad.net/ubuntu/+source/usb-modeswitch/+bug/1910982/+attachment/5451774/+files/sources.list -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1910982 Title: ZTE Modem USB stick not recognized with kernel 5.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/usb-modeswitch/+bug/1910982/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs