Sony WH-1000XM3 Battery Troubleshooting, Repair or Replacement Walkthrough - Teardown and Fix

A walkthrough showing how to troubleshoot various battery issues (charging light blinking, battery not charging, charge not lasting as long as usual...) and how to replace the battery if needed. In the worst case scenario that your headphones are damaged beyond repair (R.I.P.) I&highly recommend upgrading to the WH-1000XM4 model. The price different between the XM4 and XM3s is much smaller than I&expect and usually Amazon is running some sort of fantastic deal :) Also, I&including links to the soldering station and precision screwdriver set I used in this repair that I&had for YEARS and use to fix everything. Check them out on Amazon here: Thanks and best wishes!