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Cisco Router 3G 4G Modem Firmware upgrade

Initiate a modem firmware upgrade using the microcode reload command. Ex :
Router# microcode reload cellular 0
lte modem-provision flash:<directory>?
Router# microcode reload cellular 0 0 modem-provision flash: TELSTRA_MC7304_05.05.58.00
Reload microcode? [confirm]
Log status of firmware download in router flash?[confirm]
Firmware download status will be logged in usbflash0:fwlogfile
Microcode Reload Process launched for hwic slot=0; hw type=0x721
Router#
*****************************************************
The interface will be Shut Down for Firmware Upgrade
This will terminate any active data connections.
*****************************************************
Sending cmd=ifconfig eth0 20.20.20.2 up to Linux
*****************************************************
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 17 10:02:50.971 PST: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
*Mar 17 10:02:51.971 PST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed
state to up
*Mar 17 10:02:52.959 PST: %LINK-5-CHANGED: Interface Cellular0/0/0, changed state to administratively down
*Mar 17 10:02:52.959 PST: %LINK-5-CHANGED: Interface Cellular0/0/1, changed state to administratively down
*Mar 17 10:02:52.959 PST: %LINK-5-CHANGED: Interface Cellular0/0/3, changed state to administratively down
Sending F/W[MC7304_1102029_9903299_05.05.58.00_00_TELSTRA_005.010_000.spk] to the card [34841143bytes]:
Firmware file: MC7304_1102029_9903299_05.05.58.00_00_TELSTRA_005.010_000.spk sent to the card
The current modem F/W App Version: SWI9X15C_05.05.58.00 r27038 carmd-fwbuild1 2015/03/04 21:30:23
The current modem F/W Boot Version: SWI9X15C_05.05.58.00 r27038 carmd-fwbuild1 2015/03/04 18:38:46
The current modem Carrier String: 1
The current modem Device ID: MC7304
The current modem Package Identifier: 1102029_9903299_MC7304_05.05.53.00_00_Cisco_005.009_000
The current modem SKU ID: 1102029
Firmware Upgrade is in Progress…
*Mar 17 10:03:33.683 PST: %CELLWAN-2-MODEM_DOWN: Modem in HWIC slot 0/0 is DOWN
*Mar 17 10:04:06.443 PST: %CELLWAN-2-MODEM_DOWN: Modem in HWIC slot 0/0 is DOWN
F/W Upgrade: Firmware Upgrade has Completed Successfully
*Mar 17 10:06:10.243 PST: %CELLWAN-2-MODEM_UP: Modem in HWIC slot 0/0 is now UP
*Mar 17 10:07:00.443 PST: %CELLWAN-2-MODEM_RADIO: Cellular0/0/0 Modem radio has been turned on
After the firmware upgrade is complete, reload the router. Some modem types require multiple firmware upgrades,
please complete all the firmware upgrades before reloading the router.
HIDDEN COMAND(I got this command from TAC engineer:
Router#conf t
Router#service internal
Router#Test cellular 0 modem-power-cycle

I hope that i will help someone.

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