Can't seem to get EM7455 MR7VT to flash to generic firmware

IoT Modules MC/EM Series
1

So I’ve done plenty of 3P10Y with no issue. But I’m having serious trouble with these MR7VT. It shows everything was successful, but when I go run the Verizon flasher in Windows after running the autoflasher in Ubuntu it shows it’s still on

002.023_000
02.24.03.00_ATT

ATI3
Manufacturer: Sierra Wireless, Incorporated
Model: EM7455B
Revision: SWI9X30C_02.24.03.00 r6978 CARMD-EV-FRMWR2 2017/03/02 13:36:45
MEID: xxxxxx
IMEI: xxxxxx
IMEI SV:  9
FSN: LFxxxxx
+GCAP: +CGSM

AT!IMPREF?
!IMPREF:
 preferred fw version:    02.33.03.00
 preferred carrier name:  VERIZON
 preferred config name:   VERIZON_002.079_001
 current fw version:      02.24.03.00
 current carrier name:    ATT
 current config name:     ATT_002.023_000

 fw version mismatch
 carrier name mismatch
 config name mismatch

OK

AT!GSTATUS?
!GSTATUS:
Current Time: 1121 Temperature: 24
Reset Counter: 2 Mode: LOW POWER MODE

at!image?
TYPE SLOT STATUS LRU FAILURES UNIQUE_ID   BUILD_ID
FW   1    GOOD   1   0 0      ?_?         02.24.03.00_?
FW   2    EMPTY  0   0 0
FW   3    EMPTY  0   0 0
FW   4    EMPTY  0   0 0
Max FW images: 4
Active FW image is at slot 255

TYPE SLOT STATUS LRU FAILURES UNIQUE_ID   BUILD_ID
PRI  FF   GOOD   0   0 0      002.023_000 02.24.03.00_ATT
PRI  FF   GOOD   0   0 0      002.072_000 02.33.03.00_GENERIC
Max PRI images: 50

AT!PRIID?
PRI Part Number: 9906458
Revision: 001.003
Customer: Dell

Carrier PRI: 9999999_9904594_SWI9X30C_02.24.03.00_00_ATT_002.023_000

OK

Any advice? I assume it’s because the carrier mismatch? Not sure how to make it match.

2

How about running the fw update exe in windows?

3

I tried this with both Generic and Verizon and get the same:

FDT version: 1.0.1806.0
Awaiting adapter ...
Setting images preference ...
Resetting ...
Awaiting download port ...
Enabling selective suspend ...
Firmware download failed.
Primary error code: 82 - Failed in checking modem mode.
Secondary error code: 5 - Neither NDIS adapter nor serial port is available.
Device error code: 0x0 - Unknown device error code.

Preexisting images information:
        Current:
                Firmware:
                        ImageId: 002.020_000
                        BuildId: 02.33.03.00_GENERIC
                Configuration:
                        ImageId: 002.020_000
                        BuildId: 02.33.03.00_GENERIC
Final images information:
        Current:
                Firmware:
                        ImageId:
                        BuildId:
                Configuration:
                        ImageId:
                        BuildId:

OEM PRI:

IMEI:

Total time elapsed: 37907 ms.

Time to switch to boot mode: -1 ms.

Images downloaded:


Press Enter to continue ...

Sometimes on attempts it does the following:


FDT version: 1.0.1902.1
Awaiting adapter ...
Enabling selective suspend ...
Firmware download failed.
Primary error code: 14 - No MBN adapter available.
Secondary error code: 0 - Not applicable.
Device error code: 0x0 - Unknown device error code.

Preexisting images information:
        Current:
                Firmware:
                        ImageId:
                        BuildId:
                Configuration:
                        ImageId:
                        BuildId:
Final images information:
        Current:
                Firmware:
                        ImageId:
                        BuildId:
                Configuration:
                        ImageId:
                        BuildId:

OEM PRI:

IMEI:

Total time elapsed: 125 ms.


Images downloaded:


Press Enter to continue ...

I have run the flasher a few more times in linux and was able to get it to show generic but still shows a mismatch.

Also have a few attempts of this the modem will sometimes become unstable and freeze putty. I am unable to close putty and must reboot in order to get it to recognize the com ports again.

4

How about using this method?

5

I will try that now and report back

6

I don’t see a .spk file.

7

What did you see inside the folder

8

Okay so I messed around with it a bit. It tries to flash it then stops and is no longer shown in device manager. It’s still awaiting the adapter

FDT version: 1.0.1902.1
Awaiting suitable port or adapter ...
Switching to boot & hold mode ...
Disabling selective suspend ...
Awaiting download port ...
Downloading images ...
Writing image -
Flashing image /
Awaiting adapter ...

There are 5 files in the folder:

combo_script.txt
fdt2.exe
GobiApi.dll
SWI9X30C_02.33.03.00.cwe
SWI9X30C_02.33.03.00_VERIZON_002.079_001.nvu

9

You should be able to download the combined file .spk file here

https://source.sierrawireless.com/resources/airprime/minicard/74xx/airprime-em_mc74xx-approved-fw-packages/

10

I’m not sure what I should be downloading as I have downloaded both generic and verizon and still get issues.

11

How about update through linux

12

I got it working now. I’ll post how I fixed it in a little while. I have many modems to do this with. Am I able to make it so I don’t have to manually choose the drivers for the at ports every single time?

13

How about this?

14

Will that allow me to bypass the need for this?

0
0775×572 16.9 KB

1
1779×616 31 KB

15

I don’t see this when connect to windows

Maybe usb driver issue on your pc

16

Strange ok… The only way I can get it to work is if I do that for each of the 3 drivers. then connect to the Serial port and run

AT!ENTERCND="A710"
AT!USBVID=1199
AT!USBPID=9071,9070
AT!USBPRODUCT="EM7455"
AT!PRIID="9904609","002.026","Generic-Laptop"
AT!RESET

Then it works to run

9999999_9904609_SWI9X30C_02.33.03.00_00_GENERIC_002.072_000.exe

then

9999999_9904780_SWI9X30C_02.33.03.00_00_VERIZON_002.079_001.exe