Sony WF-1000XM4 firmware update, version 2.0.0
Sony has finally released the Multipoint firmware update for the Sony WF-1000XM4. The version is now 2.0.0 and has been released in all regions, unlike 1.6.1.
This new firmware includes the battery drain fix in 1.6.1 and the unknown changes in 1.5.0. Comparing to older firmware updates, I cannot seem to identify what was changed in 1.5.0, perhaps someone from Sony could leave a comment down below. Here are all the previous included changes:
- Reduces the burden on the battery
- Reduces the loss of battery capacity due to long-term use
- Improves the stability of music playback
- Improves call voice quality
- Improves general performance
- Improves the stability of Bluetooth connection and music playback
- Enhances other functions to improve general performance
- Improves Bluetooth connection stability
- Fixes an issue where the Noise Cancelling function or Ambient Sound Mode is momentarily interrupted
- Improves other functions
As always, I would say wait and see what others on Reddit say before upgrading.
Update
I am seeing that some users are searching whether the update fixes things like battery drain, and the simple answer is no, but this depends if you already had battery drain before the update. The battery drain issue seems to stem from the batteries and their age it seems. The longer a person has had the WF-1000XM4, the more likely that battery drain is present. I am on 1.5.0 with my WF-1000XM5 and do not have battery drain, but I bought my model back in late 2022, so they are relatively still new.
So the best option is to replace both batteries in both earbuds. Ideally Sony should do this, free of charge, but in some areas they will not. So the other option is buying the batteries and replacing them yourself. See my post below.
While not difficult, it can be tricky if you do not have the tools. One can always try to contact some electronic repair shops and ask if they would be willing to replace the batteries if you provided them the new ones.
Check the main post on Reddit and drop your update thoughts there.
