Cisco 1941 cellular card EHWIC-4G-LTE-V firmware upgrade

[rocknrobin]

I have installed the EHWIC-4G-LTE-V in slot 0 of a 1941 router. I am currently running IOS C1900-universalk9-mz.SPA.156-3.M4.bin. When I attempt the firmware upgrade, MC7750_VZW_03.05.10.06_00.cwe, I get a failure right away. When I reload the router the message comes up

%CELLWAN-4-CELLULAR_MODEM_SKU_MISMATCH: Cellular0/0/0: Mismatch detected
between installed modem MC7750[SKU ID 1584083] on NIM SKU type EHWIC-4G-LTE-V. Expected modem
for this SKU is MC7750[SKU ID 9902144]

I downgraded the IOS to c1900-universalk9-mz.SPA.155-3.M7.bin and now the mismatch message is: 

%CELLWAN-4-CELLULAR_MODEM_SKU_MISMATCH: Cellular0/0/0: Mismatch detected 
between installed modem MC7750[SKU ID 6.15] on NIM SKU type EHWIC-4G-LTE-V. Expected modem
for this SKU is MC7750[SKU ID 9902144]

I attempted the firmware upgrade again and here is the output:

Log status of firmware download in router flash?[confirm]
Firmware download status will be logged in flash0:fwlogfile
Microcode Reload Process launched for hwic slot=0; hw type=0x721

*****************************************************
The interface will be Shut Down for Firmware Upgrade
This will terminate any active data connections.
*****************************************************
*****************************************************
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.
*****************************************************
Sending F/W[MC7750_VZW_03.05.10.06_00.cwe] to the card [211074 bytes]:
Firmware file: MC7750_VZW_03.05.10.06_00.cwe sent to the card

The current modem F/W App Version: SWI9600M_01.00.09.03AP R2
#492 CARMD-EN-10526 2011/07/01 19:31:09
The current modem F/W Boot Version: SWI9600M_01.00.09.03BT R2492 CARMD-EN-10526 2011/07/01 19:28:52
The current modem Carrier String: 5
The current modem Device ID: MC7750
The current modem Package Identifier: MC7750_01.00.09.03_00_vzw_021.006_001
The current modem SKU ID: 1584083
Firmware Upgrade is in Progress...

Nov 26 20:27:17.406: %CELLWAN-4-CELLULAR_MODEM_SKU_MISMATCH: Cellular0/0/0: Mismatch detected between installed modem MC7750[SKU ID 6.15] on NIM SKU type EHWIC-4G-LTE-V. Expected modem for this SKU is MC7750[SKU ID 9902144]

%CELLWAN-2-MODEM_DOWN: Modem in HWIC slot 0/0 is DOWN

Nov 26 20:27:49.254: %CELLWAN-4-CELLULAR_MODEM_SKU_MISMATCH: Cellular0/0/0: Mismatch detected between installed modem MC7750[SKU ID 6.15] on NIM SKU type EHWIC-4G-LTE-V. Expected modem for this SKU is MC7750[SKU ID 9902144]

Nov 26 20:27:49.254: %CELLWAN-2-MODEM_DOWN: Modem in HWIC slot 0/0 is DOWN

Nov 26 20:28:03.198: %CELLWAN-4-CELLULAR_MODEM_SKU_MISMATCH: Cellular0/0/0: Mismatch detected between installed modem MC7750[SKU ID 6.15] on NIM SKU type EHWIC-4G-LTE-V. Expected modem for this SKU is MC7750[SKU ID 9902144]

F/W Upgrade: Firmware Upgrade has Completed Successfully

When I run show cellular 0/0/0 hardware though the old firmware is still there:

#sh cell 0/0/0 hard
Modem Firmware Version = SWI9600M_01.00.09.03AP
Modem Firmware built = 2011/07/01 19:31:09
Hardware Version = 20460000
Device Model ID: MC7750
Package Identifier ID: MC7750_01.00.09.03_00_vzw_021.006_001
International Mobile Subscriber Identity (IMSI) = 311480023569665
International Mobile Equipment Identity (IMEI) = 990000820076117
Integrated Circuit Card ID (ICCID) = 89148000000231958993
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) = +12012504446
Current Modem Temperature = 0 deg C
PRI SKU ID = 6.15, PRI version = , Carrier = Verizon

I have tried the firmware upgrade several times, even tried rebooting in between attempts with no joy.

Is there some place I can look, or turn debug on, that tells me why the firmware upgrade failed? What is the PRI SKU ID and can it be changed?  Do I have the wrong card?  Everything I read says the card is right and the firmware I am trying to upgrade to is right. Any help would be appreciated.

[marce1000]

 Ref : https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/16_xe/smg/xe-16-10/b-sem-16-10-1/b-sem-16-10-1_chapter_00.html

 >...

%CELLWAN-4-CELLULAR_MODEM_SKU_MISMATCH : [chars]: Mismatch detected between installed modem [chars][SKU ID [chars]] on SKU type [chars]. Expected modem for this SKU is [chars][SKU ID [chars]]
Explanation	Incorrect modem type has been installed on this SKU. Any actions and issues caused by it will not be supported
Recommended Action	Please contact the cisco customer service to replace the card

[rocknrobin]

Thanks for the quick response marce1000  ...And hence this is why the firmware upgrade does not succeed?  I did download from the Sierra Wireless web site, "1584083_999999_MC7750_03.05.10.09_00_vzw_033.011_000_SPKG.cwe" firmware.  I was concerned if I tried to install this upgrade that it would "brick" the card, but from what I see above the card I obtained is worthless to me anyway.  Is that a correct assumption?

[marce1000]

     - Besides my initial reply , I must admit that I am not acquainted enough with the particular platform and it's  components to give further dedicated and or correct answers on this.

 M.

[rocknrobin]

Thanks M.  I appreciate the location of the System Error Messages Guide.  That will come in very handy.  Anybody else have any further ideas?

[rocknrobin]

Thanks M.  I appreciate the location of the System Error Messages Guide.  That will com in very handy.  Anybody else have any further ideas?

[Rich R]

I would avoid installing software direct from Sierra - not tested by Cisco and therefore at your own risk ...

Have you tried this https://software.cisco.com/download/home/284772061/type/284285628/release/3.5.10.6? That seems to be the last Cisco supported firmware and refer to https://community.cisco.com/t5/routing/c819-4g-lte-g-4g-connection-don-t-come-up/td-p/2630908/page/2 for more info.

The bug https://bst.cloudapps.cisco.com/bugsearch/bug/CSCup24941 you've mentioned on a separate/duplicate post is described as cosmetic so is it working anyway in spite of the logs?

[rocknrobin]

Thanks for the reply.  Looking at the logs from my upgrade attempt, yes I did try to upload the 3.5.10.6 firmware from the Cisco web site and the firmware upgrade failed every time.  Looking at your second link the closest IOS I have to 15.5(3)M2 is 15.5(3)M7 and that yielded the same results.  I ordered another card, 4G-LTE-VZ (as opposed to 4G-LTE-V), and this one generates no error message about mismatched MODEM SKU mismatch.  In addition I am able to get an IP address and am connected to the Verizon network with this card.  As a side note since I had nothing to lose I pushed the 1584083_999999_MC7750_03.05.10.09_00_vzw_033.011_000_SPKG.cwe firmware to the 4G-LTE-V card with success and it now connects to the Verizon network while still producing the MODEM SKU mismatch error.  I am thinking the 4G-LTE-VZ card is a newer card that works with this platform?  I am not sure. 

[Rich R]

Glad to hear you solved it

EHWIC-4G-LTE-V - 4G LTE EHWIC for Verizon, 700 MHz Band 13/CDMA Rev A
EHWIC-4G-LTE-VZ - 4G LTE EHWIC for Verizon, AWS/700 MHz, EVDO

https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/high-speed-wan-interface-cards/eos-eol-notice-c51-734170.html

VZ (LTE- 2.0) was in fact the replacement for V (LTE 1.0) so that firmware was probably intended for the VZ not the V.

The VZ is also end of sale now https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/network-modules/eos-eol-notice-c51-741231.html

[vashy81]

Hi there I have a ehwic-4G-lte-g and wondering if you have a copy of the firmware cisco want me to have a service contract just to download it 

Regards

Dale.

[larry.yin]

I am having the exact same issue as rocknrobin. I just ordered a 4G-LTE-VZ and hope it will also resolve me issue as well. Thanks for the post!