I have a Sierra Wireless AirPrime MC7455 connected to a Linux box with Centos 7.
# uname -a
Linux phone.wfprod.com 4.20.7-1.el7.elrepo.x86_64 #1 SMP Wed Feb 6 13:17:46 EST 2019 x86_64 x86_64 x86_64 GNU/Linux
The MC7455 is in this USB adapter, with a Sprint SIM card (part number SIMGLW416Q).
I went on Tello’s website and gave them the IMEI and SIM numbers and got a phone number.
The plan has unlimited talk/text and no data.
I have mostly been using this tutorial, but the firmware flash is from github/danielewood/sierra-wireless-modems
Also, I am using the Sprint firmware instead of the Generic.
The error I am getting is:
at+cgatt=1
+CME ERROR: no network service
at+ceer
+CEER: EMM attach failed
Sometimes I got this error instead of EMM attach failed (I’ve tried the whole process a few times):
+CEER: User Aauthentication faile
I am going to try adding data to the plan and see what that does for me.
Full command output:
# minicom -D /dev/ttyUSB2
ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.30.01.01 r7792 CARMD-EV-FRMWR2 2018/07/13 02:24:52
MEID: 35907206321180
IMEI: 359072063211805
IMEI SV: 16
FSN: LQ842740430210
+GCAP: +CGSM
OK
at!entercnd="A710"
OK
at!rmareset=1
!RMARESET: DEVICE REBOOT REQUIRED
Items Restored: 2150
Items Deleted: 0
ERROR
at!reset
OK
// unplug and re-plug
# minicom -D /dev/ttyUSB2
at!entercnd="A710"
OK
at!usbcomp=1,1,10D
OK
at!reset
OK
// unplug and re-plug
// using libqmi-1.22.0 installed from source (CentOS doesn't include qmi-firmware-update)
# deviceid=`lsusb | grep -i -E '1199:9071|1199:9079|413C:81B6' | awk '{print $6}'`
# qmi-firmware-update --update -d "$deviceid" SWI9X30C_02.30.01.01.cwe SWI9X30C_02.30.01.01_SPRINT_002.045_000.nvu
loading device information before the update...
setting firmware preference:
firmware version: '02.30.01.01'
config version: '002.045_000'
carrier: 'SPRINT'
rebooting in download mode...
download mode detected
downloading cwe image: SWI9X30C_02.30.01.01.cwe (64.5 MB)...
finalizing download... (may take more than one minute, be patient)
successfully downloaded in 52.82s (1.2 MB/s)
downloading cwe image: SWI9X30C_02.30.01.01_SPRINT_002.045_000.nvu (16.5 kB)...
finalizing download... (may take more than one minute, be patient)
successfully downloaded in 0.06s (287.8 kB/s)
rebooting in normal mode...
normal mode detected
------------------------------------------------------------------------
NOTE: in order to validate which is the firmware running in the
module, the program will wait for a complete boot; this process
may take some time and several retries.
------------------------------------------------------------------------
waiting some time for the device to boot...
loading device information after the update (1/12)...
waiting some time for the device to boot...
loading device information after the update (2/12)...
------------------------------------------------------------------------
original firmware revision was:
SWI9X30C_02.24.05.06 r7040 CARMD-EV-FRMWR2 2017/05/19 06:23:09
original running firmware details:
Model: MC7455
Boot version: SWI9X30C_02.24.05.06
AMSS version: SWI9X30C_02.24.05.06
SKU ID: 1103578
Carrier ID: 1
Config version: 002.026_000
original firmware preference details:
image 'modem': unique id '002.026_000', build id '02.24.05.06_GENERIC'
image 'pri': unique id '002.026_000', build id '02.24.05.06_GENERIC'
new firmware revision is:
SWI9X30C_02.30.01.01 r7792 CARMD-EV-FRMWR2 2018/07/13 02:24:52
new running firmware details:
Model: MC7455
Boot version: SWI9X30C_02.30.01.01
AMSS version: SWI9X30C_02.30.01.01
SKU ID: 1103578
Carrier ID: 11
Config version: 002.045_000
new firmware preference details:
image 'modem': unique id '002.045_000', build id '02.30.01.01_SPRINT'
image 'pri': unique id '002.045_000', build id '02.30.01.01_SPRINT'
NOTE: this device supports stored image management
with qmicli operations:
--dms-list-stored-images
--dms-select-stored-image
--dms-delete-stored-image
NOTE: this device supports firmware preference management
with qmicli operations:
--dms-get-firmware-preference
--dms-set-firmware-preference
------------------------------------------------------------------------
firmware update operation finished successfully
// unplug and re-plug
# minicom -D /dev/ttyUSB2
ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.30.01.01 r7792 CARMD-EV-FRMWR2 2018/07/13 02:24:52
MEID: 35907206321180
IMEI: 359072063211805
IMEI SV: 16
FSN: LQ842740430210
+GCAP: +CGSM
OK
at!entercnd="A710"
OK
at!usbcomp=1,1,1009
OK
at!usbcomp?
Config Index: 1
Config Type: 1 (Generic)
Interface bitmask: 00001009 (diag,modem,mbim)
OK
at!impref="SPRINT"
OK
at!reset
OK
# minicom -D /dev/ttyUSB1
at!entercnd="A710"
OK
at!impref?
!IMPREF:
preferred fw version: 02.30.01.01
preferred carrier name: SPRINT
preferred config name: SPRINT_002.045_000
current fw version: 02.30.01.01
current carrier name: SPRINT
current config name: SPRINT_002.045_000
OK
// changed from 1 to 3 because of sprint firmware (1 is the ota update APN)
// got APN from bestmvno.com
at+cgdcont=3,"IPV4V6","n.mi.ispsn"
OK
at+cgdcont?
+CGDCONT: 1,"IP","otasn","0.0.0.0",0,0,0,0
+CGDCONT: 3,"IPV4V6","n.mi.ispsn","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
OK
at!custom="IPV6ENABLE",0
OK
at!selrat=06
OK
at!gstatus?
!GSTATUS:
Current Time: 68 Temperature: 26
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Not attached
LTE band: No band LTE bw: Unknown
LTE Rx chan: 0 LTE Tx chan: 4294967295
LTE CA state: ACTIVE LTE Scell band:B31
LTE Scell bw:3 MHz LTE Scell chan:0
EMM state: Deregistered Attach Needed
RRC state: RRC Releasing
IMS reg state: No Srv
PCC RxM RSSI: 0 RSRP (dBm): 0
PCC RxD RSSI: 0 RSRP (dBm): 0
SCC RxM RSSI: 0 RSRP (dBm): 0
SCC RxD RSSI: 0 RSRP (dBm): 0
Tx Power: -- TAC: 45FC (17916)
RSRQ (dB): 127.9 Cell ID: 00000000 (0)
SINR (dB):
OK
at!band=0A,"B25",0,0000000001000000
OK
at!band=0B,"B26",0,0000000002000000
OK
at!band=0C,"B41",0,0000010000000000
OK
at!band=0D,"Sprint (All)",0,0000010003000000
OK
at!band=0C
OK
at!gstatus?
!GSTATUS:
Current Time: 235 Temperature: 27
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Not attached
LTE band: B41 LTE bw: 20 MHz
LTE Rx chan: 41094 LTE Tx chan: 4294967295
LTE CA state: NOT ASSIGNED
EMM state: Deregistered Attach Needed
RRC state: RRC Idle
IMS reg state: No Srv
PCC RxM RSSI: -78 RSRP (dBm): -110
PCC RxD RSSI: -95 RSRP (dBm): -138
Tx Power: -- TAC: 1F0F (7951)
RSRQ (dB): -11.7 Cell ID: 03FAA401 (66757633)
SINR (dB): 8.8
OK
at+cgatt=1
+CME ERROR: no network service
at+ceer
+CEER: EMM attach failed
OK
at!gstatus?
!GSTATUS:
Current Time: 269 Temperature: 27
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Not attached
LTE band: B41 LTE bw: 20 MHz
LTE Rx chan: 41094 LTE Tx chan: 4294967295
LTE CA state: NOT ASSIGNED
EMM state: Deregistered Attach Needed
RRC state: RRC Idle
IMS reg state: No Srv
PCC RxM RSSI: -78 RSRP (dBm): -109
PCC RxD RSSI: -95 RSRP (dBm): -137
Tx Power: -- TAC: 1F0F (7951)
RSRQ (dB): -11.4 Cell ID: 03FAA401 (66757633)
SINR (dB): 9.6
OK