Using Samsung Galaxy A30S as a control service for Nano

I have seen a few variations on this question throughout the forums, but none that specifically address my goals. I have a need to be able to control the Nano in headless mode without WiFi. I have several devices pulling power on from it, and using WiFi would surpass the power threshold. This means a direct connection either through the micro-USB (with USB-C to USB-micro cable) or in tethered mode to one of the Nano’s USB ports.

I have been able to successfully SSH into the Nano over a tethered USB connect, but as soon as the connection is established, the Nano locks up and powers down. Clearly, the Android device is pulling too much power through the USB port. The other problem with this particular solution is that Nano changes the USB IP address every time the phone is plugged into its port, making it impossible to embed a static IP in the Android’s control surface.

Ideally, I would like to connect the Android device directly to the micro-USB port. At this time, doing so provides only access to the L4T storage volume. The Ethernet adapter at is not accessible from the Android. My first thought is that driver support is not present for this type of Android device. But this raises the question – are there any workarounds? Is it possible to allow SSH over micro-USB using a direct connection with an Android device (specifically A30S or similar)?

My current specs:
Nano B01
5V / 4A supplied through barrel jack
Galaxy A30S connected directly to micro-USB with USB-C to USB-micro cable (3 feet, data compatible).

I would like to avoid having to install a WiFi adapter on the Nano, as that will drain even more power, and I already have a camera and USB storage device connected to it — plus the control surface I speak of here.

Does this thread help your case?

I have seen that thread before but, unfortunately, it seems to be addressing USB tethering. I am able to successfully tether and connect with the Nano. My issue is that tethering draws too much power and shuts the Nano down — more specifically, this happens when attempting an SSH connection over the tethered connection. I don’t see that shifting to RNDIS would side-step this issue, but I could be wrong.

So I am left to determine if using the micro-USB for SSH will be possible. It may be that the USB tethering could be coerced to work by providing the phone with a separate power supply using a split USB cable. I have tried a powered USB hub, but this does not work either.