Applies to travel compact mirror 1X/7X (model ID: BMD009).
Check the below issues and solutions to fix lighting not working.
Issue 1: The power switch is off.
Solution: Turn on the power switch at the bottom near the battery case.
Issue: The batteries have run out of power.
Solution: 4 CR2032 batteries are needed. Please make sure the batteries you used are in the same material and brand-new. Do not mix batteries from different materials or brands.
Issue 3: Batteries are installed improperly.
Solution: Open the battery case cover to check if you have installed the batteries correctly. Make sure you haven't mixed up the positive and negative anodes.