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我已经浏览了通过谷歌可以找到的所有帖子，以使我的 Sierra 无线内置调制解调器正常工作。
lsusb 给了我这个：
Bus 002 Device 005: ID 1199:9013 Sierra Wireless, Inc.
Bus 002 Device 007: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 002 Device 006: ID 214b:7000
Bus 002 Device 004: ID 214b:7000
Bus 002 Device 003: ID 174c:1153 ASMedia Technology Inc. ASM2115 SATA 6Gb/s bridge
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
这是总线 002 设备 005：ID 1199:9013 Sierra Wireless, Inc.设备。
当我尝试使用调制解调器管理器 gui 时，它会列出设备，但告诉我需要启用它。我已经检查过 BIOS，一切都已启用。我已成功将 PIN 码传递到设备，但这似乎没有什么区别。我在 NM 中配置了一个连接，但同样，事情已经死了。我无法启用它、建立连接或任何其他操作。但它被检测到。
我已将 mbn 固件文件放在 /lib/firware/gobi 中并重新启动：
- amss.mbn
- 应用程序.mbn
- UQCN.mbn
我对此真的很陌生，因为这是我第一次尝试设置它。
我正在使用 Mint 20.1。这是 Sierra MC8355。
mmcli -m -0 给出：
-------------------------
General | dbus path: /org/freedesktop/ModemManager1/Modem/0
-------------------------
System | device: /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4
| drivers: qmi_wwan, qcserial
| plugin: Sierra
| primary port: cdc-wdm1
| ports: ttyUSB0 (qcdm), ttyUSB1 (at), wwp0s29u1u4 (net),
| cdc-wdm1 (qmi)
-------------------------
Status | signal quality: 0% (cached)
-------------------------
Modes | supported: allowed: any; preferred: none
| current: allowed: any; preferred: none
nmcli 开发状态给出了这个：
DEVICE TYPE STATE CONNECTION
enp0s25 ethernet connected Wired connection 1
proton0 tun connected proton0
CC:3B:27:62:16:DA bt disconnected --
wlp3s0 wifi disconnected --
cdc-wdm1 modem unavailable --
vmnet1 ethernet unmanaged --
vmnet8 ethernet unmanaged --
lo loopback unmanaged -
nmcli> print 给出：
===============================================================================
Connection profile details (Magti)
===============================================================================
connection.id: Magti
connection.uuid: cefda2c9-b170-4ffc-9517-d9cff8db8d25
connection.stable-id: --
connection.type: gsm
connection.interface-name: --
connection.autoconnect: yes
connection.autoconnect-priority: 0
connection.autoconnect-retries: -1 (default)
connection.auth-retries: -1
connection.timestamp: 0
connection.read-only: no
connection.permissions: --
connection.zone: --
connection.master: --
connection.slave-type: --
connection.autoconnect-slaves: -1 (default)
connection.secondaries: --
connection.gateway-ping-timeout: 0
connection.metered: unknown
connection.lldp: default
connection.mdns: -1 (default)
-------------------------------------------------------------------------------
ipv4.method: auto
ipv4.dns: --
ipv4.dns-search: --
ipv4.dns-options: ""
ipv4.dns-priority: 0
ipv4.addresses: --
ipv4.gateway: --
ipv4.routes: --
ipv4.route-metric: -1
ipv4.route-table: 0 (unspec)
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv4.dhcp-client-id: --
ipv4.dhcp-timeout: 0 (default)
ipv4.dhcp-send-hostname: yes
ipv4.dhcp-hostname: --
ipv4.dhcp-fqdn: --
ipv4.never-default: no
ipv4.may-fail: yes
ipv4.dad-timeout: -1 (default)
-------------------------------------------------------------------------------
ipv6.method: auto
ipv6.dns: --
ipv6.dns-search: --
ipv6.dns-options: ""
ipv6.dns-priority: 0
ipv6.addresses: --
ipv6.gateway: --
ipv6.routes: --
ipv6.route-metric: -1
ipv6.route-table: 0 (unspec)
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
ipv6.never-default: no
ipv6.may-fail: yes
ipv6.ip6-privacy: -1 (unknown)
ipv6.addr-gen-mode: stable-privacy
ipv6.dhcp-send-hostname: yes
ipv6.dhcp-hostname: --
ipv6.token: --
-------------------------------------------------------------------------------
gsm.number: *99#
gsm.username: --
gsm.password: <hidden>
gsm.password-flags: 0 (none)
gsm.apn: --
gsm.network-id: --
gsm.pin: <hidden>
gsm.pin-flags: 0 (none)
gsm.home-only: no
gsm.device-id: --
gsm.sim-id: --
gsm.sim-operator-id: --
gsm.mtu: auto
-------------------------------------------------------------------------------
proxy.method: none
proxy.browser-only: no
proxy.pac-url: --
proxy.pac-script: --
-------------------------------------------------------------------------------
如果有人能帮助我解决这个问题，我将非常感激。