方法1：用电脑刷
连接电脑，然后在路由器上
|
1 2 3 4 5 |
enable configure terminal service internal exit test cell-host 0 usb-to-dm |
把路由器的RSVD接口接到电脑上，电脑应该能识别出一个LTE网卡。然后刷机过程和普通Sierra Wireless卡刷机过程基本一致：下载固件，下载驱动，下载刷机程序，按说明操作即可。
方法2：用路由器刷
首先去下载一个cwe固件（选择QMI版本而非DIP），传到路由器的flash上，然后在路由器上执行：
|
1 2 3 |
enable delete /force /recursive flash:fwlogfile microcode reload cellular 0 0 modem-provision flash:MC7700_ATT_03.05.10.02_00.cwe |
命令询问的问题均回车即可。任何一条命令如果报错，请重启然后从头重试。如果一切正常，刷机日志如下：
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 |
Router#$odem-provision flash:3.05.20.05_00_generic_000.000_001_SPKG_MC.cwe Reload microcode? [confirm] Log status of firmware download in router flash?[confirm] Firmware download status will be logged in flash:fwlogfile Microcode Reload Process launched for Cellular 30711788; hw type = 0x6F3 Router# ***************************************************** The interface will be Shut Down for Firmware Upgrade This will terminate any active data connections. ***************************************************** Modem radio has been turned off ***************************************************** Modem will be upgraded! Upgrade process will take up to 15 minutes. During this time the modem will be unusable. Please do not remove power or reload the router during the upgrade process. ***************************************************** *Mar 3 07:42:21.375: %LINK-5-CHANGED: Interface Cellular0, changed state to administratively down Sending F/W[3.05.20.05_00_generic_000.000_001_SPKG_MC.cwe] to the card [38717372 bytes]: Firmware file: 3.05.20.05_00_generic_000.000_001_SPKG_MC.cwe sent to the card The current modem F/W App Version: SWI9200X_03.05.10.02AP R4684 CARMD-EN-10527 2012/02/25 11:58:38 The current modem F/W Boot Version: SWI9200X_03.05.10.02BT R4684 CARMD-EN-10527 2012/02/25 11:50:19 The current modem Carrier String: 0 The current modem Device ID: MC7700 The current modem Package Identifier: The current modem SKU ID: Firmware Upgrade is in Progress... *Mar 3 07:42:58.163: %CISCO800-2-MODEM_DOWN: Cellular0 modem is now DOWN. *Mar 3 07:44:34.639: %CISCO800-2-MODEM_DOWN: Cellular0 modem is now DOWN. F/W Upgrade: Firmware Upgrade has Completed Successfully *Mar 3 07:45:01.575: %CISCO800-2-MODEM_UP: Cellular0 modem is now UP. |
参考资料：
