Skydroid C12 Camera Setup

Can someone help me with my skydroid c12 thermal + rgb camera setup.

Im using the apk to change the thermal image palette but for somereason I whenever I try to connect using the apk it says SD card not found even though there is a kingston 64gb sd card present. The camera is working as I have tried streaming through the RSTP urls using vlc and openCV code but how do I change the palette . I believe there is no other way other than using the apk right??