Wireless Joint

Posted: **Sat Jul 31, 2021 5:45 pm**

I have been running an EM 7455 with the original The Wireless Haven m.2 to USB3 key connected to an RPI4 running OpenWRT/modemmanager successfully for about a year now. Suddenly the modem wasn't being detected and I thought the USB3 key had died. I bought the latest version and had the same result. I now have a new Quectel EM160R-GL and I paid for the latest firmware to get flashed. EM160RGLAUR02A07M4G

It's currently detecting the modem, but mmcli -m 0 is throwing a 'sim-missing' error.

I've tried swapping SIMs and the sim works in another device. A known good sim has the same error in this rig.

Ideas?

Code: Select all

  -----------------------------
  General  |              path: /org/freedesktop/ModemManager1/Modem/0
           |         device id: a588aefb7966e2067567e1cf2f9042a1b5547e1a
  -----------------------------
  Hardware |      manufacturer: Quectel
           |             model: EM160R-GL
           | firmware revision: EM160RGLAUR02A07M4G
           |      h/w revision: EM160R_GL
           |         supported: gsm-umts, lte
           |           current: gsm-umts, lte
           |      equipment id: 864292051086302
  -----------------------------
  System   |            device: /sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb2/2-2
           |           drivers: cdc_mbim, option1
           |            plugin: quectel
           |      primary port: cdc-wdm0
           |             ports: cdc-wdm0 (mbim), ttyUSB0 (qcdm), ttyUSB2 (at),
           |                    ttyUSB3 (at), wwan0 (net)
  -----------------------------
  Status   |             state: failed
           |     failed reason: sim-missing
           |       power state: on
           |    signal quality: 0% (cached)
  -----------------------------
  Modes    |         supported: allowed: 3g, 4g; preferred: none
           |           current: allowed: any; preferred: none
  -----------------------------
  IP       |         supported: ipv4, ipv6, ipv4v6

Posted: **Sat Jul 31, 2021 10:59 pm**

Have you tried it plugged into a pc?

Posted: **Mon Aug 02, 2021 11:21 am**

On two separate Win10 machines, after installing both the Sierrawireless and Quectel Drivers, I have tested both modems (EM7455 presumed dead & EM160 new) in both USB keys, and neither seem to work. Watching the device manager, the modem will show up, then disappear, show up, etc. The old key makes a buzzing sound for a couple seconds when it's first plugged in.

It's a Verizon sim and I've checked the Verizon Connection Manager app and it never sees the modems.

Posted: **Tue Aug 03, 2021 7:24 am**

Have you tried a brand new usb cable? Swapped cables between usb adapters?

Can you upload pics of the two adapters here?

Posted: **Tue Aug 03, 2021 11:36 am**

I have 4 cables and tried them all on both adapters.

The original adapter has the green PCB and the new has the black.

2IMG_20210803_092356.jpg

Posted: **Tue Aug 03, 2021 10:29 pm**

If you plug it into your rpi, it shows up and doesn't disappear, but wont show the SIM?

To be honest I can't stand Windows 10 for modem stuff, and so do all of my modem work on a dedicated Win7 machine.

Posted: **Tue Aug 03, 2021 11:51 pm**

I don't have a Win7 machine anymore. When I setup the original adapter with the EM 7455, I was able to get it to work on Windows 10.

Yes, mmcli -m 0 reports the sim is missing.

I'm pretty sure that the EM7455 and the original key are bad. The new EM160 does not get detected in the old adapter and the EM7455 does not get detected in the new adapter. The EM160 DOES get detected in the new adapter but shows a SIM missing error. Again, I've tried another working sim in this adapter (same sim missing error) and I've tried this sim in another device (works fine).

Is it possible the EM7455 damaged the new adapter?

Posted: **Wed Aug 04, 2021 8:31 am**

ericleslie wrote: ↑Tue Aug 03, 2021 11:51 pm ....

Is it possible the EM7455 damaged the new adapter?

Maybe, it's hard to tell. I've not seen any issues with the SIM slots on those adapters, that I can recall anyway.

That's a tough one for sure.

You may want to try a simple adapter like this one: https://thewirelesshaven.com/shop/pcie-m-2/m-2-ng ... -dual-sim/

Just to test it in something with modem and SIM together.

Posted: **Wed Aug 04, 2021 11:33 am**

Ok, I just ordered that, standing by to see what that tells us.

Posted: **Sun Aug 08, 2021 12:36 pm**

Ok, I've got that simple adapter and I am successfully connecting to the network. It would appear your USB adapter is a bad sample. Is there an RMA process for it?

Posted: **Sun Aug 08, 2021 6:06 pm**

Login to your The Wireless Haven account. Go to My Orders. Click on the RMA button, follow the prompts.

Wireless Joint

New Quectel EM160R-GL [sim-missing]

New Quectel EM160R-GL [sim-missing]

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