Can't seem to get EM7455 MR7VT to flash to generic firmware #109

kabone · 2021-11-06T23:37:11Z

kabone
Nov 6, 2021

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.

Logs from running:

sudo bash autoflash-7455.sh

Searching for EM7455/MC7455 USB modems...

Found EM7455/MC7455: 
    Bus 001 Device 013: ID 413c:81b6 Dell Computer Corp. 
    

Stoping modem manager to prevent AT command spam and allow firmware-update, this may take a minute...

Installing all needed prerequisites...
Ign:1 cdrom://Ubuntu 20.04.3 LTS _Focal Fossa_ - Release amd64 (20210819) focal InRelease
Hit:2 cdrom://Ubuntu 20.04.3 LTS _Focal Fossa_ - Release amd64 (20210819) focal Release
Hit:4 http://security.ubuntu.com/ubuntu focal-security InRelease         
Hit:5 http://archive.ubuntu.com/ubuntu focal InRelease                   
Get:6 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 DEP-11 Metadata [279 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 DEP-11 Metadata [362 kB]
Fetched 755 kB in 2s (323 kB/s)            
Reading package lists... Done
Building dependency tree       
Reading state information... Done
160 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gcc is already the newest version (4:9.3.0-1ubuntu2).
make is already the newest version (4.2.1-1.2).
unzip is already the newest version (6.0-25ubuntu1).
minicom is already the newest version (2.7.1-1.1).
curl is already the newest version (7.68.0-1ubuntu2.7).
libqmi-glib5 is already the newest version (1.28.6-1~20.04.1).
libqmi-glib5 set to manually installed.
libqmi-proxy is already the newest version (1.28.6-1~20.04.1).
libqmi-proxy set to manually installed.
libqmi-utils is already the newest version (1.28.6-1~20.04.1).
0 upgraded, 0 newly installed, 0 to remove and 160 not upgraded.
Loading internal logger. Log::Log4perl recommended for better logging
Reading '/root/.cpan/Metadata'
  Database was generated on Sun, 07 Nov 2021 00:17:02 GMT
UUID::Tiny is up to date (1.04).
IPC::Shareable is up to date (1.06).
JSON is up to date (4.03).
Waiting for modem to reboot...

Reseting modem...
Setting MBIM Mode for Modem
Interface bitmask: 0000100D (diag,nmea,modem,mbim)

Running Modem Mode Switch to usbcomp=8
Running in MBIM mode (driver=cdc_mbim)
MBIM OPEN succeeded
QMI msg '0x0021' returned status = 1
MBIM QMI support verified
supports 34 QMI subsystems:
  0x00 (1.5)	'QMI_CTL'	- Control service
  0x01 (1.67)	'QMI_WDS'	- Wireless data service
  0x02 (1.14)	'QMI_DMS'	- Device management service
  0x03 (1.25)	'QMI_NAS'	- Network access service
  0x04 (1.6)	'QMI_QOS'	- Quality of service, err, service 
  0x05 (1.10)	'QMI_WMS'	- Wireless messaging service
  0x07 (1.3)	'QMI_AUTH'	- Authentication service
  0x08 (1.2)	'QMI_AT'	- AT command processor service
  0x09 (2.1)	'QMI_VOICE'	- Voice service
  0x0a (2.24)	'QMI_CAT2'	- Card application toolkit service (new)
  0x0b (1.45)	'QMI_UIM'	- UIM service
  0x0c (1.4)	'QMI_PBM'	- Phonebook service
  0x0f (1.0)	'QMI_TEST'	- Test service
  0x10 (2.0)	'QMI_LOC'	- Location service 
  0x11 (1.0)	'QMI_SAR'	- Specific absorption rate service
  0x17 (1.0)	'QMI_TS'	- Thermal sensors service
  0x18 (1.0)	'QMI_TMD'	- Thermal mitigation device service
  0x1a (1.16)	'QMI_WDA'	- Wireless data administrative service
  0x1d (1.1)	'QMI_CSVT'	- Circuit switched videotelephony service
  0x22 (1.0)	'QMI_COEX'	- Coexistence service
  0x24 (1.0)	'QMI_PDC'	- Persistent device configuration service
  0x29 (1.0)	'QMI_RFRPE'	- RF radiated performance enhancement service
  0x2a (1.0)	'QMI_DSD'	- Data system determination service
  0x2b (1.0)	'QMI_SSCTL'	- Subsystem control service
  0x2e (1.0)	'unknown'	- 
  0x30 (1.0)	'unknown'	- 
  0x31 (1.0)	'unknown'	- 
  0x36 (1.0)	'unknown'	- 
  0xe1 (1.0)	'QMI_RMS'	- Remote management service
  0xf0 (1.0)	'unknown'	- 
  0xf3 (1.0)	'unknown'	- 
  0xf5 (1.0)	'unknown'	- 
  0xf6 (1.0)	'unknown'	- 
  0xfc (1.0)	'unknown'	- 
QMI msg '0x0022' returned status = 1
Got QMI DMS client ID '3'
QMI msg '0x555b' returned status = 1
Current USB composition: 8
USB compositions:
   0 - HIP  DM    NMEA  AT    MDM1  MDM2  MDM3  MS      NOT SUPPORTED
   1 - HIP  DM    NMEA  AT    MDM1  MS                  NOT SUPPORTED
   2 - HIP  DM    NMEA  AT    NIC1  MS                  NOT SUPPORTED
   3 - HIP  DM    NMEA  AT    MDM1  NIC1  MS            NOT SUPPORTED
   4 - HIP  DM    NMEA  AT    NIC1  NIC2  NIC3  MS      NOT SUPPORTED
   5 - HIP  DM    NMEA  AT    ECM1  MS                  NOT SUPPORTED
   6 - DM   NMEA  AT    QMI                             SUPPORTED
   7 - DM   NMEA  AT    RMNET1 RMNET2 RMNET3            NOT SUPPORTED
*  8 - DM   NMEA  AT    MBIM                            SUPPORTED
   9 - MBIM                                             SUPPORTED
  10 - NMEA MBIM                                        NOT SUPPORTED
  11 - DM   MBIM                                        NOT SUPPORTED
  12 - DM   NMEA  MBIM                                  NOT SUPPORTED
  13 - Config1: comp6    Config2: comp8                 NOT SUPPORTED
  14 - Config1: comp6    Config2: comp9                 NOT SUPPORTED
  15 - Config1: comp6    Config2: comp10                NOT SUPPORTED
  16 - Config1: comp6    Config2: comp11                NOT SUPPORTED
  17 - Config1: comp6    Config2: comp12                NOT SUPPORTED
  18 - Config1: comp7    Config2: comp8                 NOT SUPPORTED
  19 - Config1: comp7    Config2: comp9                 NOT SUPPORTED
  20 - Config1: comp7    Config2: comp10                NOT SUPPORTED
  21 - Config1: comp7    Config2: comp11                NOT SUPPORTED
  22 - Config1: comp7    Config2: comp12                NOT SUPPORTED
Current setting is already '8'
QMI msg '0x0023' returned status = 1
Waiting for modem to reboot...

Reseting modem...

OK

OK

OK

OK
Waiting for modem to reboot...
Waiting for modem to reboot...

Current modem settings:

OK

OK
ATI
Manufacturer: Sierra Wireless, Incorporated
Model: EM7455B
Revision: SWI9X30C_02.33.03.00 r8209 CARMD-EV-FRMWR2 2019/08/28 20:59:30
MEID: REDACTED
IMEI: REDACTED
IMEI SV: 20
FSN: REDACTED
+GCAP: +CGSM


OK
cat: /dev/ttyUSB2: No such file or directory
Waiting for modem to reboot...
Already downloaded SWI9X30C_02.33.03.00_GENERIC_002.072_000.zip...
Archive:  SWI9X30C_02.33.03.00_GENERIC_002.072_000.zip
  inflating: SWI9X30C_02.33.03.00.cwe  
  inflating: SWI9X30C_02.33.03.00_GENERIC_002.072_000.nvu  

Flashing SWI9X30C_02.33.03.00.cwe onto Generic Sierra Modem...
reseter operation finished successfully
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Found 413c:81b5
downloading cwe image: SWI9X30C_02.33.03.00.cwe (64.4 MB)...
finalizing download... (may take more than one minute, be patient)
successfully downloaded in 57.68s (1.1 MB/s)
downloading cwe image: SWI9X30C_02.33.03.00_GENERIC_002.072_000.nvu (3.3 kB)...
finalizing download... (may take more than one minute, be patient)
successfully downloaded in 0.05s (62.3 kB/s)
rebooting in normal mode...
firmware update operation finished successfully
cat: /dev/ttyUSB3: No such file or directory
Done!

After running it again (This would be the 3rd time the one above was the second) I get -

udo bash autoflash-7455.sh
---
Searching for EM7455/MC7455 USB modems...
---
Found EM7455/MC7455: 
    Bus 001 Device 018: ID 413c:81b6 Dell Computer Corp. 
    
---
Stoping modem manager to prevent AT command spam and allow firmware-update, this may take a minute...
---
Installing all needed prerequisites...
Ign:1 cdrom://Ubuntu 20.04.3 LTS _Focal Fossa_ - Release amd64 (20210819) focal InRelease
Hit:2 cdrom://Ubuntu 20.04.3 LTS _Focal Fossa_ - Release amd64 (20210819) focal Release
Get:4 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Hit:5 http://archive.ubuntu.com/ubuntu focal InRelease                   
Hit:6 http://archive.ubuntu.com/ubuntu focal-updates InRelease
Get:7 http://security.ubuntu.com/ubuntu focal-security/main amd64 DEP-11 Metadata [29.0 kB]
Get:8 http://security.ubuntu.com/ubuntu focal-security/universe amd64 DEP-11 Metadata [63.8 kB]
Fetched 207 kB in 1s (152 kB/s)             
Reading package lists... Done
Building dependency tree       
Reading state information... Done
160 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gcc is already the newest version (4:9.3.0-1ubuntu2).
make is already the newest version (4.2.1-1.2).
unzip is already the newest version (6.0-25ubuntu1).
minicom is already the newest version (2.7.1-1.1).
curl is already the newest version (7.68.0-1ubuntu2.7).
libqmi-glib5 is already the newest version (1.28.6-1~20.04.1).
libqmi-proxy is already the newest version (1.28.6-1~20.04.1).
libqmi-utils is already the newest version (1.28.6-1~20.04.1).
0 upgraded, 0 newly installed, 0 to remove and 160 not upgraded.
Loading internal logger. Log::Log4perl recommended for better logging
Reading '/root/.cpan/Metadata'
  Database was generated on Sun, 07 Nov 2021 00:17:02 GMT
UUID::Tiny is up to date (1.04).
IPC::Shareable is up to date (1.06).
JSON is up to date (4.03).
Waiting for modem to reboot...
---
Reseting modem...
Setting MBIM Mode for Modem
Interface bitmask: 0000100D (diag,nmea,modem,mbim)
---
Running Modem Mode Switch to usbcomp=8
Running in MBIM mode (driver=cdc_mbim)
MBIM OPEN succeeded
QMI msg '0x0021' returned status = 1
MBIM QMI support verified
supports 34 QMI subsystems:
  0x00 (1.5)	'QMI_CTL'	- Control service
  0x01 (1.67)	'QMI_WDS'	- Wireless data service
  0x02 (1.14)	'QMI_DMS'	- Device management service
  0x03 (1.25)	'QMI_NAS'	- Network access service
  0x04 (1.6)	'QMI_QOS'	- Quality of service, err, service 
  0x05 (1.10)	'QMI_WMS'	- Wireless messaging service
  0x07 (1.3)	'QMI_AUTH'	- Authentication service
  0x08 (1.2)	'QMI_AT'	- AT command processor service
  0x09 (2.1)	'QMI_VOICE'	- Voice service
  0x0a (2.24)	'QMI_CAT2'	- Card application toolkit service (new)
  0x0b (1.45)	'QMI_UIM'	- UIM service
  0x0c (1.4)	'QMI_PBM'	- Phonebook service
  0x0f (1.0)	'QMI_TEST'	- Test service
  0x10 (2.0)	'QMI_LOC'	- Location service 
  0x11 (1.0)	'QMI_SAR'	- Specific absorption rate service
  0x17 (1.0)	'QMI_TS'	- Thermal sensors service
  0x18 (1.0)	'QMI_TMD'	- Thermal mitigation device service
  0x1a (1.16)	'QMI_WDA'	- Wireless data administrative service
  0x1d (1.1)	'QMI_CSVT'	- Circuit switched videotelephony service
  0x22 (1.0)	'QMI_COEX'	- Coexistence service
  0x24 (1.0)	'QMI_PDC'	- Persistent device configuration service
  0x29 (1.0)	'QMI_RFRPE'	- RF radiated performance enhancement service
  0x2a (1.0)	'QMI_DSD'	- Data system determination service
  0x2b (1.0)	'QMI_SSCTL'	- Subsystem control service
  0x2e (1.0)	'unknown'	- 
  0x30 (1.0)	'unknown'	- 
  0x31 (1.0)	'unknown'	- 
  0x36 (1.0)	'unknown'	- 
  0xe1 (1.0)	'QMI_RMS'	- Remote management service
  0xf0 (1.0)	'unknown'	- 
  0xf3 (1.0)	'unknown'	- 
  0xf5 (1.0)	'unknown'	- 
  0xf6 (1.0)	'unknown'	- 
  0xfc (1.0)	'unknown'	- 
QMI msg '0x0022' returned status = 1
Got QMI DMS client ID '3'
QMI msg '0x555b' returned status = 1
Current USB composition: 8
USB compositions:
   0 - HIP  DM    NMEA  AT    MDM1  MDM2  MDM3  MS      NOT SUPPORTED
   1 - HIP  DM    NMEA  AT    MDM1  MS                  NOT SUPPORTED
   2 - HIP  DM    NMEA  AT    NIC1  MS                  NOT SUPPORTED
   3 - HIP  DM    NMEA  AT    MDM1  NIC1  MS            NOT SUPPORTED
   4 - HIP  DM    NMEA  AT    NIC1  NIC2  NIC3  MS      NOT SUPPORTED
   5 - HIP  DM    NMEA  AT    ECM1  MS                  NOT SUPPORTED
   6 - DM   NMEA  AT    QMI                             SUPPORTED
   7 - DM   NMEA  AT    RMNET1 RMNET2 RMNET3            NOT SUPPORTED
*  8 - DM   NMEA  AT    MBIM                            SUPPORTED
   9 - MBIM                                             SUPPORTED
  10 - NMEA MBIM                                        NOT SUPPORTED
  11 - DM   MBIM                                        NOT SUPPORTED
  12 - DM   NMEA  MBIM                                  NOT SUPPORTED
  13 - Config1: comp6    Config2: comp8                 NOT SUPPORTED
  14 - Config1: comp6    Config2: comp9                 NOT SUPPORTED
  15 - Config1: comp6    Config2: comp10                NOT SUPPORTED
  16 - Config1: comp6    Config2: comp11                NOT SUPPORTED
  17 - Config1: comp6    Config2: comp12                NOT SUPPORTED
  18 - Config1: comp7    Config2: comp8                 NOT SUPPORTED
  19 - Config1: comp7    Config2: comp9                 NOT SUPPORTED
  20 - Config1: comp7    Config2: comp10                NOT SUPPORTED
  21 - Config1: comp7    Config2: comp11                NOT SUPPORTED
  22 - Config1: comp7    Config2: comp12                NOT SUPPORTED
Current setting is already '8'
QMI msg '0x0023' returned status = 1
Waiting for modem to reboot...
---
Reseting modem...

OK

OK

OK

OK
Waiting for modem to reboot...
Waiting for modem to reboot...
Waiting for modem to reboot...
Waiting for modem to reboot...
Waiting for modem to reboot...
---
Current modem settings:
AT
OK
ATE1
OK
AT!ENTERCND="A710"
OK
AT!IMPREF?
!IMPREF: 
 preferred fw version:    02.24.03.00
 preferred carrier name:  GENERIC
 preferred config name:   GENERIC_002.020_000
 preferred subpri index:  000
 current fw version:      02.33.03.00
 current carrier name:    GENERIC
 current config name:     GENERIC_002.020_000
 current subpri index:    000

 fw version mismatch

OK
AT!GOBIIMPREF?
!GOBIIMPREF: 
 preferred fw version:    02.24.03.00
 preferred carrier name:  GENERIC
 preferred config name:   GENERIC_002.020_000
 preferred subpri index:  000
 current fw version:      02.33.03.00
 current carrier name:    GENERIC
 current config name:     GENERIC_002.020_000
 current subpri index:    000

 fw version mismatch

OK
AT!USBSPEED?
SUPPORTED:Super-Speed
CURRENT  :High-Speed

OK
AT!USBSPEED=?
!USBSPEED: <max_supported_speed>
<max_supported_speed>:
  0 - High Speed
  1 - Super Speed

OK
AT!USBCOMP?
Config Index: 1
Config Type:  1 (Generic)
Interface bitmask: 0000100D (diag,nmea,modem,mbim) 

OK
AT!USBCOMP=?
!USBCOMP: 
AT!USBCOMP=<Config Index>,<Config Type>,<Interface bitmask>
  <Config Index>      - configuration index to which the composition applies, should be 1

  <Config Type>       - 1:Generic, 2:USBIF-MBIM, 3:RNDIS
                        config type 2/3 should only be used for specific Sierra PIDs: 68B1, 9068
                        customized VID/PID should use config type 1

  <Interface bitmask> - DIAG     - 0x00000001,
                        NMEA     - 0x00000004,
                        MODEM    - 0x00000008,
                        RMNET0   - 0x00000100,
                        RMNET1   - 0x00000400,
                        MBIM     - 0x00001000,
  e.g.
  10D  - diag, nmea, modem, rmnet interfaces enabled
  1009 - diag, modem, mbim interfaces enabled

  The default configuration is:
  at!usbcomp=1,1,10F

OK
AT!USBVID?
!USBVID: 
413C

OK
AT!USBPID?
!USBPID: 
APP : 81B6
BOOT: 81B5

OK
AT!USBPRODUCT?
DW5811e Snapdragon™ X7 LTE

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

Carrier PRI: None

OK
AT!SELRAT?
!SELRAT: 00, Automatic


OK
AT!BAND?
Index, Name,                        GW Band Mask     L Band Mask      TDS Band Mask
00, All bands,                      0002000007C00000 00000100130818DF 0000000000000000


OK
AT!BAND=?
Index, Name,                        GW Band Mask     L Band Mask      TDS Band Mask
00, All bands                     0002000007C00000 00000100130818DF 0000000000000000
01, Europe 3G                     0002000000400000 0000000000000000 0000000000000000
02, North America 3G              0000000004800000 0000000000000000 0000000000000000
06, Europe                        0002000000400000 00000000000800C5 0000000000000000
07, North America                 0000000004800000 000000000300185A 0000000000000000
08, WCDMA ALL                     0002000007C00000 0000000000000000 0000000000000000
09, LTE ALL                       0000000000000000 00000100130818DF 0000000000000000
10, Band4                         0000000000000000 0000000000000008 0000000000000000

                                                   0000010000000000 - B41    
                                                   0000000010000000 - B29    
                                                   0000000002000000 - B26    
                                                   0000000001000000 - B25    
                                                   0000000000080000 - B20    
                                                   0000000000001000 - B13    
                                                   0000000000000800 - B12    
                                                   0000000000000080 - B8     
                                                   0000000000000040 - B7     
                                                   0000000000000010 - B5     
                                                   0000000000000008 - B4     
                                                   0000000000000004 - B3     
                                                   0000000000000002 - B2     
                                                   0000000000000001 - B1     
                                  0002000000000000 - B8  (900)
                                  0000000004000000 - B5  (850)
                                  0000000002000000 - B4 (1700)
                                  0000000001000000 - B3 (1700)
                                  0000000000800000 - B2 (1900)
                                  0000000000400000 - B1 (2100)

OK
AT!PCINFO?
State: Low Power Mode
LPM voters - Temp:0, Volt:0, User:0, W_DISABLE:0, IMSWITCH:1, BIOS:0, LWM2M:0, OMADM:0, FOTA:0
LPM persistence - None

OK
AT!PCOFFEN?
0

OK
AT!CUSTOM?
!CUSTOM: 
             GPSENABLE		0x04
             GPSSEL		0x01
             IPV6ENABLE		0x01
             CFUNPERSISTEN	0x01
             SIMLPM		0x01
             USBSERIALENABLE	0x01
             PCSCDISABLE		0x03
             SINGLEAPNSWITCH	0x01


OK
AT!IMAGE?
TYPE SLOT STATUS LRU FAILURES UNIQUE_ID   BUILD_ID
FW   1    EMPTY  0   0 0                  
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      002.072_000 02.33.03.00_GENERIC
Max PRI images: 50


OK
AT
OK
AT!IMAGE=0
OK
AT!IMAGE?
TYPE SLOT STATUS LRU FAILURES UNIQUE_ID   BUILD_ID
FW   1    EMPTY  0   0 0                  
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
Max PRI images: 50


OK
Waiting for modem to reboot...
Already downloaded SWI9X30C_02.33.03.00_GENERIC_002.072_000.zip...
Archive:  SWI9X30C_02.33.03.00_GENERIC_002.072_000.zip
  inflating: SWI9X30C_02.33.03.00.cwe  
  inflating: SWI9X30C_02.33.03.00_GENERIC_002.072_000.nvu  
---
Flashing SWI9X30C_02.33.03.00.cwe onto Generic Sierra Modem...
reseter operation finished successfully
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Waiting for modem in boothold mode...
Found 413c:81b5
downloading cwe image: SWI9X30C_02.33.03.00.cwe (64.4 MB)...
finalizing download... (may take more than one minute, be patient)
successfully downloaded in 57.68s (1.1 MB/s)
downloading cwe image: SWI9X30C_02.33.03.00_GENERIC_002.072_000.nvu (3.3 kB)...
finalizing download... (may take more than one minute, be patient)
successfully downloaded in 0.05s (62.0 kB/s)
rebooting in normal mode...
firmware update operation finished successfully
cat: /dev/ttyUSB2: No such file or directory
Done!

Answered by kabone

Nov 8, 2021

I managed to fix the issue by manually changing the device to generic and then flashing generic firmware in Windows then flashing Verizon firmware on top of it.

View full answer

kabone · 2021-11-08T03:30:01Z

kabone
Nov 8, 2021
Author

I managed to fix the issue by manually changing the device to generic and then flashing generic firmware in Windows then flashing Verizon firmware on top of it.

1 reply

GeorgettaCZ Nov 15, 2022

I managed to fix the issue by manually changing the device to generic and then flashing generic firmware in Windows then flashing Verizon firmware on top of it.

Hello,

Well, I have an EM7455 modem, idProduct: 0x81b6, idVendor: 0x413c in a Dell 5400 laptop with 8th Gen Core i5. Its a dual boot Win11 / macOS Monterey. It runs fine in Windows but it did not work in macOS.

I found this guide: https://zukota.com/posts/sierra-wireless-em7455-how-to-enable-com-ports/. The Ubuntu 18.4 live USB did not work for me since the Dell 5400 latest bios does not support legacy boot. I was finally able to boot the Ubuntu 22.10 live USB on another older Dell 7280 with the EM7455 inside and successfully ran the autoflash-7455.sh. It ran for some time, did all the testing, downloading and flashing and ended up with successful setting of ports. It now uses port 6 and 8.

Then I also remapped the USB ports with USBmap tool from here https://github.com/corpnewt/USBMap and made a new USBmap.kext. Plus I took the legacy_sierra_QMI.kext and modified it a bit to match Monterey macOS. Now I have a Vodafone CZ SIM card in the laptop and the whole thing is visible in HW info like this:
DW5811e_Snapdragon____X7_LTE:
Device Version Number: 6
DirectoryNumber: +CNUM: ,"+420731636661",145
idProduct: 0x81b6
idVendor: 0x413c
IMEI: 3544xxxxxxxx4339
IMSI: 23xxxxxxxxxxx0148
locationID: 0x14500000 @ 5
LOCK_STATE: UNLOCKED
Manufacturer: Sierra Wireless, Incorporated
Model: EM7455B
Modem Software: SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09
Network Name: Unknown
Serial#: 3544xxxxxxxx4339
WWAN_TYPE: GSM

So no matter what was the FW status of the modem before the flashing, now it shows SWI9X30C_02.24.05.06 r7040.

Then I jumped into Windows again and went here I found that the SWI9X30C_02.24.05.06 is a Bell something... and I decided to go with the latest Generic, which is Generic | SWI9X30C_02.38.00.00. I downloaded the Windows FW package and installed it. All ran fine and ended with the 02.24.05.06 as previous and 02.38.00.00 as actual firmware installed. BUT after shutdown and power up to Monterey, the modem still shows the old 02.24.05.06. And I am not able to move on and connect to GSM network.

QUESTIONS:

is it a matter of some AT commands to make it work?
shall I somehow configure the APN in macOS? And if, then how? Any guide about it? Because I did no configuration in Windows, it just got self configured and runs 4G/LTE nice and fast.
shall I try the Vodafone | SWI9X30C_02.24.03.00 | 001.001_002 firmware since I have a Vodafone SIM card?
how did you make the manual change of the device to generic?

Any help would be appreciated!

Regards, George

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Can't seem to get EM7455 MR7VT to flash to generic firmware #109

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Can't seem to get EM7455 MR7VT to flash to generic firmware #109

kabone Nov 6, 2021

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