Have you already updated to 2.5.1? Share your battery life results in the comments below. For more Sony WH-1000XM4 tips, including EQ settings and repair guides, subscribe to our newsletter.
If you are searching for a direct file download (often ending in .dat or .bin ) to force an update via a PC, this is highly discouraged by Sony. These files are not publicly hosted for manual installation and doing so can "brick" your headphones. Always use the mobile app for the safest experience. Sony Wh-1000xm4 Firmware 2.5.1 LINK
Instead of hunting for a dangerous manual link, open the Sony Headphones Connect app right now. Tap "System software version." If 2.5.1 is available, install it. Your headphones will thank you with 30+ hours of stable, glitch-free noise cancellation. Have you already updated to 2