Quectel RM551E-GL

[SpeedxThunder]

[2024-10-04 18:26:27:177_S:] AT+QCFG="ims"
[2024-10-04 18:26:27:254_R:] AT+QCFG="ims"
[2024-10-04 18:26:27:254_R:] +QCFG: "ims",0,1

[2024-10-04 18:26:52:257_S:] at+cfun=1
[2024-10-04 18:26:52:338_R:] at+cfun=1
[2024-10-04 18:26:52:837_R:] OK

[2024-10-04 18:26:53:521_R:] +CPIN: READY

[2024-10-04 18:26:53:521_R:] +QUSIM: 1

[2024-10-04 18:26:53:582_R:] DSR:0 CTS:0 (RI:0) DCD:0

[2024-10-04 18:26:53:647_R:] +CREG: 2

[2024-10-04 18:26:53:716_R:] DSR:0 CTS:0 (RI:1) DCD:0

[2024-10-04 18:26:53:962_R:] +QIND: SMS DONE

[2024-10-04 18:26:54:995_R:] +QIND: PB DONE

[2024-10-04 18:26:55:594_R:] +CREG: 0

also sim is visible to the device and it gives 2,0 as creg output even after 5 minutes of testing

 

[Manoj Mathew]

first at+cfun=0 then at+cfun=1 to reset, not at+cfun=1 twice.
Anyway, try this

AT+QCFG="ims",1

then cfun 0 and 1, then check if it registers. Also see response to

at+cops?

 

[SpeedxThunder]

no i did both but only copied 1

 

[SpeedxThunder]

new hosted at ImgBB

Image new in Arpan Joardar's images album

ibb.co

 

[Manoj Mathew]

You could try with another entry from mbn as done for this RM520N-GL and SK Telecom
If it doesn't work, better to get in touch with Quectel support to solve registration issue.

 

[SpeedxThunder]

so this issue only occurs in QMI/MBIM/ECM mode but when i change to RNDIS it auto connects but has issue with working on windows and also i cannot customize the bands and stuff

anyway i am mainly trying to get it work on openwrt in BPI-R4 do you have any idea about that?

 

[Manoj Mathew]

That's surprising, mode shouldn't affect registration. Are you getting proper working internet with RNDIS?

 

[Manoj Mathew]

Just connecting to the virtual ethernet link on windows does not mean device has registered on the network and is functioning properly. If registered properly, it should work in any mode, if not registered, no mode is going to work for you.

Once you solve reg issues, getting it to work with openwrt should not be an issue.

 

[SpeedxThunder]

yeah RNDIS works perfectly fine

 

[Manoj Mathew]

I had a relook at your pic, your at+cops shows that is registered on the network. Quectel earlier would provide reg status with creg even for lte though not strictly according to standards, with 5g I think it may be showing it only for the standard compliant specific 5g reg command. This should confirm that it is registered

AT+C5GREG?

If as I suspect it shows properly registered, you should be able to get everything working soon. Going to sleep now, will have a look tomorrow.