I am trying to get MC7354 connect to T-Mobile US LTE. For some reason, it does not connect to LTE APN (fast.t-mobile.com). 3/3.5G APN (epc.t-mobile.com) seems to connect, but doesn’t get IP address. 3/3.5G is working from my phone with same SIM card. MC7354 detects SIM card fine and everything seems to be fine, but it just doesn’t initiate LTE call. Is MC7354 supposed to be only for AT&T LTE ? I thought if it works on AT&T, it should work on T-Mobile too.
Below is various status info (actual IDs masked out). Have been googling around for 2 days so far. Didn’t find much help as this is relatively new module. Appreciate if anyone could shed some light on how to go about make this damn thing connect both 3G and LTE
gcom:
root@OpenWrt:~# gcom -d /dev/ttyUSB2
SIM ready
Waiting for Registration…(120 sec max)
Registered on Home network: “T-Mobile”,7
Signal Quality: 23,99
root@OpenWrt:~# gcom -d /dev/ttyUSB2 sig
Signal Quality: 23,99
root@OpenWrt:~# gcom -d /dev/ttyUSB2 info
Wireless WAN Modem Configuration
Product text:
Manufacturer: Sierra Wireless, Incorporated
Model: MC7354
Revision: SWI9X15C_05.05.16.02 r21040 carmd-fwbuild1 2014/03/17 23:49:48
MEID: …
ESN: …
IMEI: …
IMEI SV: 11
FSN: J8426502290410
+GCAP: +CGSM
OK
Manufacturer: Sierra Wireless, Incorporated
IMEI and Serial Number: …
Manufacturer’s Revision:
SWI9X15C_05.05.16.02 r21040 carmd-fwbuild1 2014/03/17 23:49:
Hardware Revision:
Network Locked: 0
Customisation:
Band settings: (
)
APN: 1,“IP”,“epc.tmobile.com”,“0.0.0.0”,0,0
END
QMI :
LTE:
root@OpenWrt:~# qmi-network /dev/cdc-wdm0 start
Loading profile…
APN: fast.t-mobile.com
Starting network with ‘qmicli -d /dev/cdc-wdm0 --wds-start-network=fast.t-mobile.com --client-no-release-cid’…
error: couldn’t start network: QMI protocol error (14): ‘CallFailed’
call end reason (12): (null)
verbose call end reason (3,2000): [cm] client-end
Saving state… (CID: 8)
error: network start failed, no packet data handle
Clearing state…
3G :
root@OpenWrt:~# qmi-network /dev/cdc-wdm0 start
Loading profile…
APN: epc.tmobile.com
Starting network with ‘qmicli -d /dev/cdc-wdm0 --wds-start-network=epc.tmobile.com --client-no-release-cid’…
Saving state… (CID: 8)
Saving state… (PDH: 1137862328)
Network started successfully
root@OpenWrt:~# udhcpc -i wwan0
udhcpc (v1.22.1) started
Sending discover…
Sending discover…
Sending discover…
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-capabilities
[/dev/cdc-wdm0] Device capabilities retrieved:
Max TX channel rate: ‘50000000’
Max RX channel rate: ‘100000000’
Data Service: ‘non-simultaneous-cs-ps’
SIM: ‘supported’
Networks: ‘cdma20001x, evdo, gsm, umts, lte’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-ids
[/dev/cdc-wdm0] Device IDs retrieved:
ESN: ‘…’
IMEI: ‘…’
MEID: ‘…’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-model
[/dev/cdc-wdm0] Device model retrieved:
Model: ‘MC7354’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-revision
[/dev/cdc-wdm0] Device revision retrieved:
Revision: ‘SWI9X15C_05.05.16.02 r21040 carmd-fwbuild1 2014/03/17 23:49:48’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-power-state
[/dev/cdc-wdm0] Device power state retrieved:
Power state: ‘external-source’
Battery level: ‘0 %’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-uim-get-iccid
[/dev/cdc-wdm0] UIM ICCID retrieved:
ICCID: ‘…’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-uim-get-state
[/dev/cdc-wdm0] UIM state retrieved:
State: ‘initialization-completed’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-operating-mode
[/dev/cdc-wdm0] Operating mode retrieved:
Mode: ‘online’
HW restricted: ‘no’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-uim-get-state
[/dev/cdc-wdm0] UIM state retrieved:
State: ‘initialization-completed’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --dms-get-band-capabilities
[/dev/cdc-wdm0] Device band capabilities retrieved:
Bands: ‘bc-0-a-system, bc-0-b-system, bc-1-all-blocks, gsm-dcs-1800, gsm-900-extended, gsm-900-primary, bc-10, gsm-850, gsm-pcs-1900, wcdma-2100, wcdma-pcs-1900, wcdma-1700-us, wcdma-850-us, bc-15’
LTE bands: ‘2, 4, 5, 13, 17, 25’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-signal-strength
[/dev/cdc-wdm0] Successfully got signal strength
Current:
Network ‘lte’: ‘-68 dBm’
Other:
Network ‘cdma-1xevdo’: ‘-125 dBm’
RSSI:
Network ‘lte’: ‘-68 dBm’
Network ‘cdma-1xevdo’: ‘-125 dBm’
ECIO:
Network ‘lte’: ‘-31.5 dBm’
Network ‘cdma-1xevdo’: ‘-2.5 dBm’
IO: ‘-106 dBm’
SINR: (8) ‘9.0 dB’
RSRQ:
Network ‘lte’: ‘-7 dB’
SNR:
Network ‘lte’: ‘15.2 dB’
RSRP:
Network ‘lte’: ‘-93 dBm’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-signal-info
[/dev/cdc-wdm0] Successfully got signal info
HDR:
RSSI: ‘-125 dBm’
ECIO: ‘-2.5 dBm’
SINR (8): ‘9.0 dB’
IO: ‘-106 dBm’
LTE:
RSSI: ‘-68 dBm’
RSRQ: ‘-7 dB’
RSRP: ‘-93 dBm’
SNR: ‘18.6 dBm’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-home-network
[/dev/cdc-wdm0] Successfully got home network:
Home network:
MCC: ‘310’
MNC: ‘260’
Description: ‘T-Mobil’
rroot@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-serving-system
[/dev/cdc-wdm0] Successfully got serving system:
Registration state: ‘registered’
CS: ‘attached’
PS: ‘attached’
Selected network: ‘3gpp’
Radio interfaces: ‘1’
[0]: ‘lte’
Roaming status: ‘off’
Data service capabilities: ‘1’
[0]: ‘lte’
Current PLMN:
MCC: ‘310’
MNC: ‘260’
Description: ‘T-Mobile’
Roaming indicators: ‘1’
[0]: ‘off’ (lte)
3GPP time zone offset: ‘-420’ minutes
3GPP daylight saving time adjustment: ‘1’ hours
3GPP location area code: ‘65534’
3GPP cell ID: ‘21199875’
Detailed status:
Status: ‘available’
Capability: ‘cs-ps’
HDR Status: ‘none’
HDR Hybrid: ‘yes’
Forbidden: ‘no’
LTE tracking area code: ‘16720’
Full operator code info:
MCC: ‘310’
MNC: ‘260’
MNC with PCS digit: ‘yes’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-system-info
[/dev/cdc-wdm0] Successfully got system info:
CDMA 1x service:
Status: ‘none’
Preferred data path: ‘no’
CDMA 1xEV-DO (HDR) service:
Status: ‘none’
Preferred data path: ‘no’
GSM service:
Status: ‘none’
True Status: ‘none’
Preferred data path: ‘no’
WCDMA service:
Status: ‘none’
True Status: ‘none’
Preferred data path: ‘no’
LTE service:
Status: ‘available’
True Status: ‘available’
Preferred data path: ‘no’
Domain: ‘cs-ps’
Service capability: ‘cs-ps’
Roaming status: ‘off’
Forbidden: ‘no’
Cell ID: ‘21199875’
MCC: ‘310’
MNC: ‘260’
Tracking Area Code: ‘16720’
Voice support: ‘no’
eMBMS coverage info support: ‘no’
SIM reject info: ‘vailable’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-technology-preference
[/dev/cdc-wdm0] Successfully got technology preference
Active: ‘auto’, duration: ‘permanent’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --nas-get-system-selection-preference
[/dev/cdc-wdm0] Successfully got system selection preference
Emergency mode: ‘no’
Mode preference: ‘cdma-1x, cdma-1xevdo, gsm, umts, lte’
Band preference: ‘gsm-dcs-1800, gsm-900-extended, gsm-900-primary, gsm-850, gsm-pcs-1900, wcdma-2100, wcdma-pcs-1900, wcdma-850-us, wcdma-800, bc-15’
LTE band preference: ‘2, 4, 5, 17’
TD-SCDMA band preference: ‘a, b, c, d, e, f’
CDMA PRL preference: ‘any’
Roaming preference: ‘any’
Network selection preference: ‘automatic’
Service domain preference: ‘cs-ps’
Service selection preference: ‘automatic’
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --wds-get-packet-service-status
[/dev/cdc-wdm0] Connection status: ‘disconnected’
rroot@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --wds-get-data-bearer-technology
error: couldn’t get data bearer technology: QMI protocol error (15): ‘OutOfCall’
[/dev/cdc-wdm0] Data bearer technology (last): ‘lte’(10)
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --wds-get-profile-list=3gpp2
Profile list empty
root@OpenWrt:~# qmicli -d /dev/cdc-wdm0 --wds-get-profile-list=3gpp
Profile list retrieved:
[1] 3gpp - AT&T Mobile
APN: ‘epc.tmobile.com’
PDP type: ‘ipv4’
Username: ‘’
Password: ‘’
Auth: ‘none’