very low external mic input level and playback. Help?

The problem with my Op1 has recently come to light. don’t know if it’s something I did in my settings or if it is a mechanical failure… My “red” input value is turned all the way up. “White” trigger volume all the way down. The unit is sampling when I speak into it, but the playback level is whisper-low. Barely audible, and sounds a bit distorted. I had only recently started to experiment with this feature so I do not know if it’s ever worked correctly on my unit. I’ve done the factory reset a couple of times didn’t seem to make a difference. Is there a way to figure out if this is a mechanical problem or if it has to do with the settings if it is mechanical where can I have it checked out ( preferably USA)?

well when my mic started failing it showed these exact symptoms you are describing (very faint recording level) and i did not understand why either. factory reset did not fix anything and no issue was detected by the functionality test.

the next day it died.
hope you luck