V4 How to load map tiles

I have a V4 expansion kit. If I am using the MUI and look at the node map, there are no map tiles. Is there a way to load map tiles onto the V4? Perhaps if it can be put into DFU mode can I copy a maps folder onto the disk?

Thanks.

On the T-Deck you load them onto an SD card. Since the expansion kit doesn’t have that we’ll have to wait for someone to make a B2B expansion socket SD card adapter.

Someone did it a bit…
LoRa, MESHTASTIC, MeshCore Projects | I got one of these Heltec expansion devices with the ESP32 V4 LoRa, GPS, and touchscreen | Facebook

I wonder if they just put a few tiles in the built in memory. Not nearly enough built in memory for a complete map of my local area at reasonable zooms. And I have no idea how to get it onto the device anyway.