Sierra mini pci-e MC7455 supported in MIFI?

Technical Support for Routers
1

I got a MC7455 card (it shows support for global band including Americas, Asia, Europe, etc.). I put it into a MIFI. It shows detected, but there is no ttyUSB*.

When I tried to connect to either T-Mobile or Verizon with working SIM card, it shows ‘connecting’…but no IP.

===================================================================

Mon Jul 17 21:59:36 2017 kern.info kernel: [ 579.640000] usb 1-1.2: new high-speed USB device number 6 using ehci-platform

Mon Jul 17 21:59:36 2017 kern.warn kernel: [ 579.750000] usb 1-1.2: config 1 has an invalid interface number: 8 but max is 4

Mon Jul 17 21:59:36 2017 kern.warn kernel: [ 579.750000] usb 1-1.2: config 1 has an invalid interface number: 10 but max is 4

Mon Jul 17 21:59:36 2017 kern.warn kernel: [ 579.760000] usb 1-1.2: config 1 has no interface number 1

Mon Jul 17 21:59:36 2017 kern.warn kernel: [ 579.760000] usb 1-1.2: config 1 has no interface number 4

Mon Jul 17 21:59:36 2017 kern.info kernel: [ 579.790000] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device

Mon Jul 17 21:59:36 2017 kern.info kernel: [ 579.790000] qmi_wwan 1-1.2:1.8 wwan0: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 21:59:36 2017 kern.info kernel: [ 579.810000] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device

Mon Jul 17 21:59:36 2017 kern.info kernel: [ 579.810000] qmi_wwan 1-1.2:1.10 wwan1: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 21:59:52 2017 kern.info kernel: [ 595.020000] usb 1-1.2: USB disconnect, device number 6

Mon Jul 17 21:59:52 2017 kern.info kernel: [ 595.020000] qmi_wwan 1-1.2:1.8 wwan0: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 21:59:52 2017 kern.info kernel: [ 595.060000] qmi_wwan 1-1.2:1.10 wwan1: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:00:00 2017 kern.info kernel: [ 603.450000] usb 1-1.2: new high-speed USB device number 7 using ehci-platform

Mon Jul 17 22:00:00 2017 kern.warn kernel: [ 603.560000] usb 1-1.2: config 1 has an invalid interface number: 8 but max is 4

Mon Jul 17 22:00:00 2017 kern.warn kernel: [ 603.560000] usb 1-1.2: config 1 has an invalid interface number: 10 but max is 4

Mon Jul 17 22:00:00 2017 kern.warn kernel: [ 603.570000] usb 1-1.2: config 1 has no interface number 1

Mon Jul 17 22:00:00 2017 kern.warn kernel: [ 603.570000] usb 1-1.2: config 1 has no interface number 4

Mon Jul 17 22:00:00 2017 kern.info kernel: [ 603.600000] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device

Mon Jul 17 22:00:00 2017 kern.info kernel: [ 603.600000] qmi_wwan 1-1.2:1.8 wwan0: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:00:00 2017 kern.info kernel: [ 603.620000] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device

Mon Jul 17 22:00:00 2017 kern.info kernel: [ 603.620000] qmi_wwan 1-1.2:1.10 wwan1: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:00:15 2017 kern.info kernel: [ 618.830000] usb 1-1.2: USB disconnect, device number 7

Mon Jul 17 22:00:15 2017 kern.info kernel: [ 618.830000] qmi_wwan 1-1.2:1.8 wwan0: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:00:15 2017 kern.info kernel: [ 618.870000] qmi_wwan 1-1.2:1.10 wwan1: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:00:24 2017 kern.info kernel: [ 627.510000] usb 1-1.2: new high-speed USB device number 8 using ehci-platform

Mon Jul 17 22:00:24 2017 kern.warn kernel: [ 627.620000] usb 1-1.2: config 1 has an invalid interface number: 8 but max is 4

Mon Jul 17 22:00:24 2017 kern.warn kernel: [ 627.620000] usb 1-1.2: config 1 has an invalid interface number: 10 but max is 4

Mon Jul 17 22:00:24 2017 kern.warn kernel: [ 627.630000] usb 1-1.2: config 1 has no interface number 1

Mon Jul 17 22:00:24 2017 kern.warn kernel: [ 627.640000] usb 1-1.2: config 1 has no interface number 4

Mon Jul 17 22:00:24 2017 kern.info kernel: [ 627.670000] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device

Mon Jul 17 22:00:24 2017 kern.info kernel: [ 627.690000] qmi_wwan 1-1.2:1.8 wwan0: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:00:24 2017 kern.info kernel: [ 627.700000] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device

Mon Jul 17 22:00:24 2017 kern.info kernel: [ 627.700000] qmi_wwan 1-1.2:1.10 wwan1: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:00:40 2017 kern.info kernel: [ 642.890000] usb 1-1.2: USB disconnect, device number 8

Mon Jul 17 22:00:40 2017 kern.info kernel: [ 642.890000] qmi_wwan 1-1.2:1.8 wwan0: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:00:40 2017 kern.info kernel: [ 642.960000] qmi_wwan 1-1.2:1.10 wwan1: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:00:48 2017 kern.info kernel: [ 651.580000] usb 1-1.2: new high-speed USB device number 9 using ehci-platform

Mon Jul 17 22:00:48 2017 kern.warn kernel: [ 651.690000] usb 1-1.2: config 1 has an invalid interface number: 8 but max is 4

Mon Jul 17 22:00:48 2017 kern.warn kernel: [ 651.690000] usb 1-1.2: config 1 has an invalid interface number: 10 but max is 4

Mon Jul 17 22:00:48 2017 kern.warn kernel: [ 651.700000] usb 1-1.2: config 1 has no interface number 1

Mon Jul 17 22:00:48 2017 kern.warn kernel: [ 651.710000] usb 1-1.2: config 1 has no interface number 4

Mon Jul 17 22:00:48 2017 kern.info kernel: [ 651.720000] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device

Mon Jul 17 22:00:48 2017 kern.info kernel: [ 651.740000] qmi_wwan 1-1.2:1.8 wwan0: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:00:48 2017 kern.info kernel: [ 651.750000] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device

Mon Jul 17 22:00:48 2017 kern.info kernel: [ 651.750000] qmi_wwan 1-1.2:1.10 wwan1: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:01:06 2017 kern.info kernel: [ 669.000000] usb 1-1.2: USB disconnect, device number 9

Mon Jul 17 22:01:06 2017 kern.info kernel: [ 669.010000] qmi_wwan 1-1.2:1.8 wwan0: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:01:06 2017 kern.info kernel: [ 669.060000] qmi_wwan 1-1.2:1.10 wwan1: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:01:15 2017 kern.info kernel: [ 678.710000] usb 1-1.2: new high-speed USB device number 10 using ehci-platform

Mon Jul 17 22:01:15 2017 kern.warn kernel: [ 678.820000] usb 1-1.2: config 1 has an invalid interface number: 8 but max is 4

Mon Jul 17 22:01:15 2017 kern.warn kernel: [ 678.820000] usb 1-1.2: config 1 has an invalid interface number: 10 but max is 4

Mon Jul 17 22:01:15 2017 kern.warn kernel: [ 678.830000] usb 1-1.2: config 1 has no interface number 1

Mon Jul 17 22:01:15 2017 kern.warn kernel: [ 678.840000] usb 1-1.2: config 1 has no interface number 4

Mon Jul 17 22:01:15 2017 kern.info kernel: [ 678.870000] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device

Mon Jul 17 22:01:16 2017 kern.info kernel: [ 678.880000] qmi_wwan 1-1.2:1.8 wwan0: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:01:16 2017 kern.info kernel: [ 678.890000] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device

Mon Jul 17 22:01:16 2017 kern.info kernel: [ 678.900000] qmi_wwan 1-1.2:1.10 wwan1: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:01:31 2017 kern.info kernel: [ 694.090000] usb 1-1.2: USB disconnect, device number 10

Mon Jul 17 22:01:31 2017 kern.info kernel: [ 694.090000] qmi_wwan 1-1.2:1.8 wwan0: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:01:31 2017 kern.info kernel: [ 694.130000] qmi_wwan 1-1.2:1.10 wwan1: unregister ‘qmi_wwan’ usb-ehci-platform-1.2, WWAN/QMI device

Mon Jul 17 22:01:39 2017 kern.info kernel: [ 702.780000] usb 1-1.2: new high-speed USB device number 11 using ehci-platform

Mon Jul 17 22:01:40 2017 kern.warn kernel: [ 702.890000] usb 1-1.2: config 1 has an invalid interface number: 8 but max is 4

Mon Jul 17 22:01:40 2017 kern.warn kernel: [ 702.890000] usb 1-1.2: config 1 has an invalid interface number: 10 but max is 4

Mon Jul 17 22:01:40 2017 kern.warn kernel: [ 702.900000] usb 1-1.2: config 1 has no interface number 1

Mon Jul 17 22:01:40 2017 kern.warn kernel: [ 702.900000] usb 1-1.2: config 1 has no interface number 4

Mon Jul 17 22:01:40 2017 kern.info kernel: [ 702.970000] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device

Mon Jul 17 22:01:40 2017 kern.info kernel: [ 702.990000] qmi_wwan 1-1.2:1.8 wwan0: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:01:40 2017 kern.info kernel: [ 703.000000] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device

Mon Jul 17 22:01:40 2017 kern.info kernel: [ 703.000000] qmi_wwan 1-1.2:1.10 wwan1: register ‘qmi_wwan’ at usb-ehci-platform-1.2, WWAN/QMI device, f6:09:5b:c5:97:c2

Mon Jul 17 22:01:55 2017 daemon.notice netifd: Interface ‘modem’ is setting up now

Mon Jul 17 22:01:56 2017 daemon.notice netifd: modem (25957): Waiting for network registration

Mon Jul 17 22:01:56 2017 daemon.notice netifd: modem (25957): Starting network internet

Mon Jul 17 22:01:57 2017 daemon.notice netifd: modem (25957): Starting DHCP

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem_4’ is enabled

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem_6’ is enabled

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem’ is now up

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Network device ‘wwan0’ link is up

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Network alias ‘wwan0’ link is up

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem_4’ has link connectivity

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem_4’ is setting up now

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem_6’ has link connectivity

Mon Jul 17 22:01:57 2017 daemon.notice netifd: Interface ‘modem_6’ is setting up now

Mon Jul 17 22:01:57 2017 daemon.notice netifd: modem (25957): Command failed: Unknown error

Mon Jul 17 22:01:57 2017 daemon.notice netifd: modem (25957): Command failed: Unknown error

Mon Jul 17 22:01:57 2017 user.notice root: qmi bringup failed, retry in 15s

Mon Jul 17 22:01:58 2017 daemon.notice netifd: modem_4 (26233): udhcpc (v1.24.1) started

Mon Jul 17 22:01:59 2017 daemon.notice netifd: modem_4 (26233): Sending discover…

Mon Jul 17 22:02:02 2017 daemon.notice netifd: modem_4 (26233): Sending discover…

Mon Jul 17 22:02:05 2017 daemon.notice netifd: modem_4 (26233): Sending discover…

Mon Jul 17 22:02:12 2017 user.warn mwan3: Could not find gateway for interface modem (wwan0)

Mon Jul 17 22:02:14 2017 user.notice firewall: Reloading firewall due to ifup of modem (wwan0)

Mon Jul 17 22:02:58 2017 daemon.notice netifd: modem_4 (26233): Received SIGTERM

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem_4’ is now down

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem_4’ has link connectivity loss

Mon Jul 17 22:02:58 2017 daemon.notice netifd: modem (32228): Stopping network

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem_6’ is now down

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem_6’ is disabled

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem_6’ has link connectivity loss

Mon Jul 17 22:02:58 2017 daemon.notice netifd: modem (32228): Command failed: Permission denied

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem’ is now down

Mon Jul 17 22:02:58 2017 daemon.notice netifd: Interface ‘modem’ is setting up now

Mon Jul 17 22:02:59 2017 user.notice mwan3: ifdown interface modem (unknown)

Mon Jul 17 22:03:00 2017 daemon.notice netifd: modem (32324): Waiting for network registration

Mon Jul 17 22:03:00 2017 daemon.notice netifd: modem (32324): Starting network internet

Mon Jul 17 22:03:19 2017 daemon.notice netifd: modem (32324): Starting DHCP

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem’ is now up

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Network device ‘wwan1’ link is up

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Network alias ‘wwan1’ link is up

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem_4’ is enabled

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem_4’ has link connectivity

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem_4’ is setting up now

Mon Jul 17 22:03:19 2017 daemon.notice netifd: modem (32324): Command failed: Unknown error

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem_6’ is enabled

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem_6’ has link connectivity

Mon Jul 17 22:03:19 2017 daemon.notice netifd: Interface ‘modem_6’ is setting up now

Mon Jul 17 22:03:19 2017 daemon.notice netifd: modem (32324): Command failed: Unknown error

Mon Jul 17 22:03:19 2017 user.notice root: qmi bringup failed, retry in 15s

Mon Jul 17 22:03:20 2017 daemon.notice netifd: modem_4 (1730): udhcpc (v1.24.1) started

Mon Jul 17 22:03:21 2017 daemon.notice netifd: modem_4 (1730): Sending discover…

Mon Jul 17 22:03:24 2017 daemon.notice netifd: modem_4 (1730): Sending discover…

Mon Jul 17 22:03:27 2017 daemon.notice netifd: modem_4 (1730): Sending discover…

 

2

very interesting that this modem only have QMI mode and has two cdc-wdm device.

Seems there is a problem because the modem shows registered and then unregistered for several times.

Can you upload to firmware v2.261 if the version is older? There maybe a problem in setting up qmi mode.

Then can you try cdc-wdm0 as well?

You can post the content of /etc/config/network because we didn’t have experience to deal with two cdc-wdm device and the UI may post wrong settings to the mifi.

3

The firmware is updated to 2.261 (I also tested in 2.5 and 2.26)

I tried cdc-wdm0 and cdc-wdm1, on both T-Mobile and Verizon 4G LTE cards (both cards works on existing EC25-V and EC25-A cards in Mifi)

Here is the /etc/config/network (this is after I set the 4G connection to Verizon)

===================================================================

config interface ‘loopback’

option ifname ‘lo’

option proto ‘static’

option ipaddr ‘127.0.0.1’

option netmask ‘255.0.0.0’

 

config globals ‘globals’

option ula_prefix ‘fda1:0e3c:aed8::/48’

 

config interface ‘lan’

option ifname ‘eth1’

option force_link ‘1’

option type ‘bridge’

option proto ‘static’

option netmask ‘255.255.255.0’

option ip6assign ‘60’

option hostname ‘GL-MIFI-346’

option ipaddr ‘192.168.8.1’

 

config interface ‘wan’

option ifname ‘eth0’

option proto ‘dhcp’

option hostname ‘GL-MIFI-346’

option metric ‘10’

 

config interface ‘wan6’

option ifname ‘eth0’

option proto ‘dhcpv6’

 

config interface ‘modem’

option proto ‘qmi’

option ifname ‘wwan0’

option country ‘country73’

option metric ‘40’

option sp ‘isp5’

option dialnum ‘99**3#’

option apn ‘internet’

option device ‘/dev/cdc-wdm0’

option service ‘umts’

 

config interface ‘wwan’

option proto ‘dhcp’

option metric ‘20’

 

==================================================================

4

you need to put the modem in mbim mode.

 

do u have a usb adapter for it? you need a windows machine to run commands.

5

<b>Thanks for the advice. </b>

Will this adapter work?

Or this one?

https://www.amazon.com/gp/aw/d/B00YOL9VAQ/ref=mp_s_a_1_4?ie=UTF8&amp;qid=1500417420&amp;sr=8-4&amp;pi=AC_SX236_SY340_FMwebp_QL65&amp;keywords=mini+pcie+to+usb&amp;dpPl=1&amp;dpID=31PxFrdFF-L&amp;ref=plSrch

I only have basic knowledge of Linux and strong in windows system. What’s the tool or command to do the mode switch once I have the adapter and plug into windows? Does it need any driver for the sierra card?

Thanks!

Ken

6

I have the NGFF version of this modem (EM7455) and I followed the instructions here to enable the COM ports (use the driver install/configuration.ini method on Windows). I have successfully enabled the COM ports, but the MiFi is still not detecting a modem.

7

Download huawei terminal My Huawei Terminal 0.32 / Программы / Загрузки - 3Ginfo

Connect mc7455 to computer. Conect to the modem port and type. ati then hit enter. If it gives out modem info your good, if not repeat on a different port.

 

  1. Run on mc7455. (make sure your apn is r.ispsn, if not change it below)

 

AT!entercnd=“A710”

AT!USBCOMP=1,1,1009

AT+cgdcont=1,“IP”,“r.ispsn”

 

That will put it in mbim mode and add the apn to the mc7455

8

Thanks to Westrem on the sierra forum for this.

 

 

9

Do you mean I need to hard code APN into the sierra card? Can it be configured via the MIFI GLI UI?

Can anyone educate me about QMI, MBIM, COM, /etc/ttyusb* etc. and how they are related?

Thanks!

Ken