[SOLVED] EM7565 failed to connect (Verizon)

[sharkbait]

I'm trying to get a new system running. It's a Sierra EM7565 card connecting via USB to a router running GoldenOrb. The system recognizes the modem but it fails to connect. If it makes a difference, I'm trying to connect to Verizon using the SIM from my phone and the system recognizes the SIM info. I also set the TTL to 65.

Just to try something, I did try the following but it didn't make a difference. I am able to issue AT commands without any problems.

One of the members on the Hacks Facebook group, clarified how to fix the issue of losing the Modem COM port. Coupled with the post above, we will help to better describe the fix.

The modem can fixed while installed in or behind a router running OpenWRT/GoldenOrb/WiFiX firmware.

Using PuTTy, login the router using the IP address 192.168.1.1

Once in, run the following command:

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echo 1199 9091 > /sys/bus/usb-serial/drivers/option1/new_id

Then repair the config with:

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picocom -b 115200 /dev/ttyUSB0

Then place the modem in MBIM composition with the follow commands:

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At!entercnd="A710"
At!usbcomp=1,3,1009
At!reset

And, that should do it.

[JimHelms]

The fix you posted is for a completely separate issue.

Run the command:

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AT!GSTATUS?

and post the results.

[sharkbait]

Here are the results:

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AT!GSTATUS?
!GSTATUS: 
Current Time:  158		Temperature: 23
Reset Counter: 5		Mode:        ONLINE         
System mode:   LTE        	PS state:    Not attached 
LTE band:      B66    		LTE bw:      10 MHz  
LTE Rx chan:   0		LTE Tx chan: 132122
LTE SSC1 state:NOT ASSIGNED
LTE SSC2 state:NOT ASSIGNED
LTE SSC3 state:NOT ASSIGNED
LTE SSC4 state:NOT ASSIGNED
EMM state:     Deregistered   	Attach Needed  
RRC state:     RRC Idle       
IMS reg state: No Srv  		

PCC RxM RSSI:  -64		PCC RxM RSRP:  -96
PCC RxD RSSI:  -66		PCC RxD RSRP:  -101
Tx Power:      --		TAC:         1e19 (7705)
RSRQ (dB):     -15.2		Cell ID:     050b520c (84627980)
SINR (dB):      1.4

OK

[JimHelms]

This is network related:

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EMM state:     Deregistered   	Attach Needed  
RRC state:     RRC Idle       
IMS reg state: No Srv

Is the SIM Card is properly activated.

I would contact the carrier and have them check on their side as to its activation.

[sharkbait]

I have read about several Verizon users having a similar problem. I found a reply on the Sierra Wireless forums that the problem can be caused by running the generic firmware and the there "will be no IMS APN profile thus SIM OTA will not be triggered". The recommendation was to download the Verizon firmware and use that.

I installed the Verizon firmware and was then able to connect without any problems. On top of that, moving my SIM back into the phone wasn't a hassle like I had after it deregistered using the generic firmware. I was getting 40Mbps down and 20Mbps up so I'm guessing it was using my unlimited phone data vs being seen as a hotspot which I would expect to see the throughput throttled.

Thanks for the quick responses to my request for help Jim!

[destinbl20]

I have read about several Verizon users having a similar problem. I found a reply on the Sierra Wireless forums that the problem can be caused by running the generic firmware and the there "will be no IMS APN profile thus SIM OTA will not be triggered". The recommendation was to download the Verizon firmware and use that.

I installed the Verizon firmware and was then able to connect without any problems. On top of that, moving my SIM back into the phone wasn't a hassle like I had after it deregistered using the generic firmware. I was getting 40Mbps down and 20Mbps up so I'm guessing it was using my unlimited phone data vs being seen as a hotspot which I would expect to see the throughput throttled.

Thanks for the quick responses to my request for help Jim!

Is there one for ATT? I’m using the wg1608 and have the same problem for att sim cards