How to Replace the Battery on a Sony WF-1000XM4 (Update)

With all the issues of battery drain and the new 1.6.1 firmware possibly decreasing battery life, here is a guide how to replace the battery in your WF-1000XM4. The video can be found here for those interested, I will also embed it at the end. Thanks to Yen Albert for the great video.

Sony WF-1000XM4 firmware update, version 1.6.1 (Update)

Sony Asia has finally released a new firmware update for the WF-1000XM4. This firmware supposedly fixes the battery drain, but we will have to wait and see what users say. Looking at other Sony support sites like Europe or Americas, no 1.6.1 update yet.