I’m not the first person to mention this, but it doesn’t seem to have it’s own post, so now it does
Spend the $20 and get an Endoscope camera for your !
or a different one as long as the wire is stiff. For this one, this app worked on my MotoX4 just fine - you just have to ignore the pop-ups
Being able to get a close up view of all the parts that may or may not need to be cleaned is so worth it!