[GH-ISSUE #34] Add support for Quectel RM520N-GL #24

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opened 2026-03-04 11:57:41 +03:00 by kerem · 10 comments
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Originally created by @lrdrdn on GitHub (Jan 21, 2023).
Original GitHub issue: https://github.com/4IceG/luci-app-3ginfo-lite/issues/34

Please add support luci-app-3ginfo-lite & luci-app-modemband

Quectel RM520N-GL
vid:pid 2c7c:0801

All command same as Quectel RG502Q-EA
serial port /dev/ttyUSB3
Supported band:

at+qnwprefcfg="lte_band"
+QNWPREFCFG: "lte_band",1:2:3:4:5:7:8:12:13:14:17:18:19:20:25:26:28:29:30:32:34:38:39:40:41:42:43:48:66:71
Originally created by @lrdrdn on GitHub (Jan 21, 2023). Original GitHub issue: https://github.com/4IceG/luci-app-3ginfo-lite/issues/34 Please add support [luci-app-3ginfo-lite](https://github.com/4IceG/luci-app-3ginfo-lite) & [luci-app-modemband](https://github.com/4IceG/luci-app-modemband) Quectel RM520N-GL vid:pid `2c7c:0801` All command same as Quectel RG502Q-EA serial port `/dev/ttyUSB3` Supported band: ``` at+qnwprefcfg="lte_band" +QNWPREFCFG: "lte_band",1:2:3:4:5:7:8:12:13:14:17:18:19:20:25:26:28:29:30:32:34:38:39:40:41:42:43:48:66:71 ```
kerem closed this issue 2026-03-04 11:57:41 +03:00
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@4IceG commented on GitHub (Jan 21, 2023):

Hi @lrdrdn
If it's the same, I'll add the modem in the next package release.

<!-- gh-comment-id:1399328510 --> @4IceG commented on GitHub (Jan 21, 2023): Hi @lrdrdn If it's the same, I'll add the modem in the next package release.
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@lrdrdn commented on GitHub (Jan 22, 2023):

I copied file 2c7c0800 to 2c7c0801, but modem type & protocol not display properly.

image

<!-- gh-comment-id:1399467043 --> @lrdrdn commented on GitHub (Jan 22, 2023): I copied file 2c7c0800 to 2c7c0801, but modem type & protocol not display properly. ![image](https://user-images.githubusercontent.com/93698387/213914856-0245923e-6bbc-46db-b314-ba6be691e636.png)
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@4IceG commented on GitHub (Jan 22, 2023):

Commands similar, but scripts need fixing anyway. Ok, I will write here when I add the modem.

<!-- gh-comment-id:1399600653 --> @4IceG commented on GitHub (Jan 22, 2023): Commands similar, but scripts need fixing anyway. Ok, I will write here when I add the modem.
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@4IceG commented on GitHub (Jan 23, 2023):

Hi @lrdrdn , replace with this file and see if it will be better.
2c7c0801.zip

<!-- gh-comment-id:1400281254 --> @4IceG commented on GitHub (Jan 23, 2023): Hi @lrdrdn , replace with this file and see if it will be better. [2c7c0801.zip](https://github.com/4IceG/luci-app-3ginfo-lite/files/10479763/2c7c0801.zip)
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@lrdrdn commented on GitHub (Jan 23, 2023):

working correctly
image

<!-- gh-comment-id:1400299703 --> @lrdrdn commented on GitHub (Jan 23, 2023): working correctly ![image](https://user-images.githubusercontent.com/93698387/214045894-30ae4315-25eb-48cb-9661-e84372065b9e.png)
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@4IceG commented on GitHub (Jan 25, 2023):

The modem is already added to 3ginfo-lite, with the compilation I am waiting for the update of the modemband package by Cezary.

<!-- gh-comment-id:1403871136 --> @4IceG commented on GitHub (Jan 25, 2023): The modem is already added to 3ginfo-lite, with the compilation I am waiting for the update of the modemband package by Cezary.
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@pedroo84 commented on GitHub (Jul 25, 2023):

Hello guys, recently I got a RM520N-GL, but it is locked to "mbim" this way I can't access the AT commands to change it to ECM, any idea how can I do this? in order to have read outs on 3g-info?

<!-- gh-comment-id:1648858150 --> @pedroo84 commented on GitHub (Jul 25, 2023): Hello guys, recently I got a RM520N-GL, but it is locked to "mbim" this way I can't access the AT commands to change it to ECM, any idea how can I do this? in order to have read outs on 3g-info?
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@4IceG commented on GitHub (Jul 25, 2023):

Hi @pedroo84 , I don't know in the end if you want to use mbim or ecm modem. My modem works in mbim and I'm not complaining. Do you have the kmod-usb-serial kmod-usb-serial-option packages installed?

<!-- gh-comment-id:1648931923 --> @4IceG commented on GitHub (Jul 25, 2023): Hi @pedroo84 , I don't know in the end if you want to use mbim or ecm modem. My modem works in mbim and I'm not complaining. Do you have the kmod-usb-serial kmod-usb-serial-option packages installed?
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@pedroo84 commented on GitHub (Jul 25, 2023):

Hi @pedroo84 , I don't know in the end if you want to use mbim or ecm modem. My modem works in mbim and I'm not complaining. Do you have the kmod-usb-serial kmod-usb-serial-option packages installed?

Hi Rafal, actually mbim works with modem manager here too, the problem is that the USBtty port won't show up on my modem, therefore I can't access AT Command and also 3G-Info can't read the data too. Do you think my module needs a firmware update to solve this?

I own other Quectel modems and never encountered such issue.

<!-- gh-comment-id:1649032296 --> @pedroo84 commented on GitHub (Jul 25, 2023): > Hi @pedroo84 , I don't know in the end if you want to use mbim or ecm modem. My modem works in mbim and I'm not complaining. Do you have the kmod-usb-serial kmod-usb-serial-option packages installed? Hi Rafal, actually mbim works with modem manager here too, the problem is that the USBtty port won't show up on my modem, therefore I can't access AT Command and also 3G-Info can't read the data too. Do you think my module needs a firmware update to solve this? I own other Quectel modems and never encountered such issue.
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@4IceG commented on GitHub (Jul 25, 2023):

First of all, uninstall modem manager. Then check if you have the required packages listed above. Finally, set the modem to work in mbim and configure the connection. Important! my packages don't work with MM.

<!-- gh-comment-id:1649442418 --> @4IceG commented on GitHub (Jul 25, 2023): First of all, uninstall modem manager. Then check if you have the required packages listed above. Finally, set the modem to work in mbim and configure the connection. Important! my packages don't work with MM.
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