EM7511 not connected to any network

IoT Modules MC/EM Series
1

EM7511 not connected to any network operator.Can anyone suggest proper steps for the network connection

2

What is the return of

At!gstatus?
At+cpin?
At!entercnd=“A710”
At!impref?

3

At!gstatus?
!GSTATUS:
Current Time: 104 Temperature: 37
Reset Counter: 1 Mode: LOW POWER MODE

OK
At+cpin?
+CPIN: READY

OK
AT!ENTERCND=“A710”
OK
At!impref?
!IMPREF:
preferred fw version: 00.00.00.00
preferred carrier name: AUTO-SIM
preferred config name: AUTO-SIM_000.000_000
current fw version: 01.07.00.00
current carrier name: GENERIC
current config name: GENERIC_002.002_000

OK

4

The configurations in at!impref is not matched

You might need to download fw

5

can you explain the steps?

6

Downlod the exe and update the fw

https://source.sierrawireless.com/resources/airprime/minicard/75xx/airprime-em_mc75xx-approved-fw-packages/

7

we are working on linux system,so can you provide steps for the updation?

8

You can see here

Also you can see here

9

in my ls /dev there is no cdc_wdm

10

i"m working with Jetson Xavier board,can you please tell the correct steps for the installation of MBPL driver and firmware update.I was only able install the usb driver.

11

please see here:

12

after MBPL R23 USB driver install nothing will create in /sys/class/net

13

how about R20 USB driver?

14

It show some errors.

15

MBPL_Drivers_USB_R20_ENG1-src/USB/qmi_wwan.c:11:10: fatal error: linux/sched/signal.h: No such file or directory
#include <linux/sched/signal.h>
^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
scripts/Makefile.build:341: recipe for target ‘/home/cdac/Downloads/MBPL_Drivers_USB_R20_ENG1-src/USB/qmi_wwan.o’ failed
make[2]: *** [/home/cdac/Downloads/MBPL_Drivers_USB_R20_ENG1-src/USB/qmi_wwan.o] Error 1
Makefile:1646: recipe for target ‘module/home/cdac/Downloads/MBPL_Drivers_USB_R20_ENG1-src/USB’ failed
make[1]: *** [module/home/cdac/Downloads/MBPL_Drivers_USB_R20_ENG1-src/USB] Error 2
make[1]: Leaving directory ‘/usr/src/linux-headers-4.9.201-tegra-ubuntu18.04_aarch64/kernel-4.9’
Makefile:12: recipe for target ‘all’ failed
make: *** [all] Error 2

16

change it to

#include <linux/signal.h>

17

After MBPL R20 USB driver install nothing will create in /sys/class/net

18

what did you see for dmesg?
do you see the network interface wwan0?

19

[12361.755365] Extcon AUX1(HDMI) disable
[12361.779268] tegra_nvdisp_handle_pd_disable: Powergated Head1 pd
[12361.779788] tegra_nvdisp_handle_pd_disable: Powergated Head0 pd
[13090.155281] tegradc 15200000.nvdisplay: unblank
[13090.156149] tegra_nvdisp_handle_pd_enable: Unpowergated Head0 pd
[13090.156267] tegra_nvdisp_handle_pd_enable: Unpowergated Head1 pd
[13090.158199] Parent Clock set for DC plld2
[13090.164341] tegradc 15200000.nvdisplay: hdmi: tmds rate:85500K prod-setting:prod_c_hdmi_54m_111m
[13090.165837] tegradc 15200000.nvdisplay: hdmi: get YCC quant from EDID.
[13090.201353] extcon-disp-state external-connection:disp-state: cable 47 state 1
[13090.201358] Extcon AUX1(HDMI) enable
[13090.220486] tegradc 15200000.nvdisplay: unblank
[13090.220504] tegradc 15210000.nvdisplay: blank - powerdown
[13526.107972] usb_wwan: exports duplicate symbol usb_wwan_chars_in_buffer (owned by kernel)

20

other user can upgrade the FW:

How about doing AT!BOOTHOLD and then run the fw download command?