How to make a flashlight in Mobile Android?

I’m working at a Horror VR game for Android and I really need to create a flashlight. It is about a dark maze in which the player should get out of it only using the flashlight.
I have read the lighting limitations from Unreal Documentation (only static lighting supported) but I have also seen some VR apps that have a fully functional flashlight. And if you link a spotlight to the first person camera, you have to set that spotlight as movable (so it doesn’t work on mobile).
Any idea about how to fix this and create a flashlight for mobile VR apps?