# 5G Modem Carrier Board + RM502Q-AE

Source: https://forum.modalai.com/topic/1003/5g-modem-carrier-board-rm502q-ae
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2022-06-10 09:07:02 UTC by Oliver Jackson
Replies: 3 · Views: 527

## Oliver Jackson · 2022-06-10 09:07:02 UTC

Recently we have purchased the 5G Modem Carrier Board, USB HUB, I/O Breakout for VOXL 2 and RM502Q-AE 5G Modem. 

Right now, by using command "Isusb" we cannot see the device in the usb devices list

After studying the documentation and testing some options we would kindly request an initialisation driver for core version 4.4.38 of the aarch64 architectureю The device is Linux Manifold manifold2 4.4.38+ #2 SMP PREEMPT Mon Jun 3 20:19:02.

## Reply by modaltb (ModalAI staff) · 2022-06-10 17:06:11 UTC

Hi @Oliver-Jackson ,

For us to enable this in our build, we had to patch the kernel a bit, for example see: https://gitlab.com/voxl-public/system-image-build/meta-voxl2-bsp/-/blob/dev/recipes-kernel/linux-msm/files/004-option.patch

What device are you trying this on?

## Reply by Oliver Jackson · 2022-06-11 04:13:30 UTC (in reply to modaltb)

@modaltb, thanks for your quick response.  We need to connect to a DJI Manifold 2G https://www.dji.com/ae/manifold-2 running Linux, and obtain a 5G data connection on the Manifold.

## Reply by modaltb (ModalAI staff) · 2022-06-13 16:08:41 UTC

OK got it.  

If it's not showing up via lsusb, typically we would solve that by rebuilding our open source public facing kernel with some new USB ids (we even give a docker container that is ready to build the kernel) along with instructions on how to safely test the kernel before flashing it.   Check it out here: https://docs.modalai.com/voxl2-kernel-build-guide/

I haven't looked around much, but surely if this DJI drone is a development drone, they should also provide such convenience to their developers, so I'd give DJI a shout and see what's up!