External Mic not Working

[khenzero]

I bought a Wireless microphone and tested it out on my Samsung A31. I tried first recording in Audio Recording and the results is good. When I tried to test it on Video Recording, it didn't record the audio thru my external mic ( Tnw n11). Do you any solutions for this?

[Mogay]

try instal Open Camera, Open Camera has an option to choose audio source including external mic, i don't think stock camera app for A31 has this option

[khenzero]

Already tried it but doesn't work. Help huhu.
It's an expensive investment for me as a student. Lol