MC7455 lower power mode (config name mismatch) after latest FW

Embedded wireless modules MC/EM Series
#1

Title pretty much says it. I tried to flash the latest generic firmware onto my generic MC7455 and it all looked like it went fine. However, the modem now comes up stuck in “low power mode”. After some digging I believe this is due to a “config name mismatch”, but I cannot seem to fix it.

Details:
ATI
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30
IMEI: REDACTED
IMEI SV: 20
FSN: REDACTED
+GCAP: +CGSM

at!priid?
PRI Part Number: 9907763
Revision: 002.072
Customer: GENERIC

Carrier PRI: None

at!impref?
!IMPREF:
 preferred fw version:    02.33.03.00
 preferred carrier name:  GENERIC
 preferred config name:   GENERIC_002.072_000
 preferred subpri index:  000
 current fw version:      02.33.03.00
 current carrier name:    GENERIC
 current config name:     GENERIC_002.026_000
 current subpri index:    000

 config name mismatch

at!gstatus?
!GSTATUS:
Current Time:  434              Temperature: 29
Reset Counter: 3                Mode:        LOW POWER MODE


OK

Tried the following with no luck:
AT!ENTERCND=“A710”
AT!USBPID=9071,9070
AT!USBVID=1199
AT!PRIID=“9907763”,“002.072”,“GENERIC”
AT!IMAGE=0
AT!RESET
(followed by re-flashing)

I am dead in the water. Any help is appreciated.

#2

Hi @alex.ciarlillo

You can try to do these steps as below:
1.Clear all firmware entries and NVUs:
AT!ENTERCND=“A710”
AT!IMAGE=0
AT!RESET
2. Download the latest firmware (SWI9X30C_02.33.03.00 Generic) to the module
https://source.sierrawireless.com/resources/airprime/minicard/74xx/airprime-em_mc74xx-approved-fw-packages/#sthash.u3x3NZkA.dpbs
3. Set image management preferences
AT!ENTERCND=“A710”
AT!IMPREF=“GENERIC”
AT!RESET
4.Provide some information about your module using below commands
ATI3
AT!ENTERCND=“A710”
AT!HWID?
AT!IMPREF?
AT!IMAGE?
AT!PRIID?
AT!GSTATUS?
AT!SKU?

#3

Hi @Donald

I have run those commands and tried re-flashing a few times now, along with trying AT!RMARESET before re-flashing.

Here is the output of the commands you asked for:

Send:ATI3

Recieve: ATI3
Recieve: Manufacturer: Sierra Wireless, Incorporated
Recieve: Model: MC7455
Recieve: Revision: SWI9X30C_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30
Recieve: IMEI: REDACTED
Recieve: IMEI SV: 20
Recieve: FSN: REDACTED
Recieve: +GCAP: +CGSM
Recieve: OK

Send:AT!ENTERCND="A710"

Recieve: AT!ENTERCND="A710"
Recieve: OK

Send:AT!HWID?

Recieve: AT!HWID?
Recieve: Revision: 1.0
Recieve: OK

Send:AT!IMPREF?

Recieve: AT!IMPREF?
Recieve: !IMPREF: 
Recieve:  preferred fw version:    02.33.03.00
Recieve:  preferred carrier name:  GENERIC
Recieve:  preferred config name:   GENERIC_002.072_000
Recieve:  preferred subpri index:  000
Recieve:  current fw version:      02.33.03.00
Recieve:  current carrier name:    GENERIC
Recieve:  current config name:     GENERIC_002.026_000
Recieve:  current subpri index:    000
Recieve:  config name mismatch
Recieve: OK

Send:AT!IMAGE?

Recieve: AT!IMAGE?
Recieve: TYPE SLOT STATUS LRU FAILURES UNIQUE_ID   BUILD_ID
Recieve: FW   1    GOOD   1   0 0      ?_?         02.33.03.00_?
Recieve: FW   2    EMPTY  0   0 0                  
Recieve: FW   3    EMPTY  0   0 0                  
Recieve: FW   4    EMPTY  0   0 0                  
Recieve: Max FW images: 4
Recieve: Active FW image is at slot 1
Recieve: TYPE SLOT STATUS LRU FAILURES UNIQUE_ID   BUILD_ID
Recieve: PRI  FF   GOOD   0   0 0      002.072_000 02.33.03.00_GENERIC
Recieve: Max PRI images: 50
Recieve: OK

Send:AT!PRIID?

Recieve: AT!PRIID?
Recieve: PRI Part Number: 9904609
Recieve: Revision: 002.072
Recieve: Customer: Generic-Laptop
Recieve: Carrier PRI: None
Recieve: OK

Send:AT!SKU?

Recieve: AT!SKU?
Recieve: SKU: 1103789
Recieve: OK

Send:AT!GSTATUS?

Recieve: AT!GSTATUS?
Recieve: !GSTATUS: 
Recieve: Current Time:  96		Temperature: 27
Recieve: Reset Counter: 1		Mode:        LOW POWER MODE 
Recieve: OK

Send:AT!IMPREF?

Recieve: AT!IMPREF?
Recieve: !IMPREF: 
Recieve:  preferred fw version:    02.33.03.00
Recieve:  preferred carrier name:  GENERIC
Recieve:  preferred config name:   GENERIC_002.072_000
Recieve:  preferred subpri index:  000
Recieve:  current fw version:      02.33.03.00
Recieve:  current carrier name:    GENERIC
Recieve:  current config name:     GENERIC_002.026_000
Recieve:  current subpri index:    000
Recieve:  config name mismatch
Recieve: OK
#4

Hi @alex.ciarlillo

This issue has not been reproduced with MC7455 firmware SWI9X30C_02.33.03.00 Generic on my side.

PRI file is not switched correctly after upgrading the firmware on your module.

You can try to do these steps as below:
AT!ENTERCND=“A710”
AT!IMPREF=“02.33.03.00"”“GENERIC”,“GENERIC_002.072_000”
AT!PRIID=“9904609”,“002.072”,“GENERIC”
AT!RESET
AT!IMPREF?
AT!IMAGE?
AT!PRIID?
AT!GSTATUS?