# 5G Add-on board - Accessing the Quectel module Linux Shell

Source: https://forum.modalai.com/topic/1481/5g-add-on-board-accessing-the-quectel-module-linux-shell
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2022-10-24 16:31:19 UTC by Mark Lee
Replies: 2 · Views: 634

## Mark Lee · 2022-10-24 16:31:19 UTC

I have a 5G Add on board (MSA-M0090-3-01-01) with a Quectel M.2 (RM502Q-AE) module connected to the VOXL 2 board. I can access the VOXL Linux shell with ADB to the VOXL2 USB-C connector. Is there a way to connect to the Linux LE shell on the RM502Q-AE module?
@Vinny - any suggestions?

## Reply by Chad Sweet (ModalAI staff) · 2022-10-24 21:35:08 UTC

Not that we know about, sorry about that.

## Reply by Vinny (ModalAI staff) · 2022-10-24 21:50:32 UTC

Hi @Mark-Lee , 
Chad is correct in that we have not tried it, but my idea is that if you wanted to access the Linux shell on the modem card, you would need a modem development platform from Quectel.
Here is an example I found online (please do your research to ensure this will work for you, but I do see they mention serial port access):
https://www.aliexpress.us/item/3256803611119964.html?gatewayAdapt=glo2usa4itemAdapt&_randl_shipto=US

In our architectures, we do have a mechanism to talk to the serial port over software using one of the QUPs, but there has been no need to do so, and would be a costly SW expense to develop it.
If you are willing to void your warranty (not recommended), I can show you which resistors have it and you could try to solder on to them, but you are better off with the Dev Kit IMHO.