: While the Sony USA Support page remains active for documentation, most regional Sony sites (UK, Middle East, Ireland) now report that no firmware downloads are available for this specific model. Manual Installation and Flashing
If you have obtained a firmware folder (often named "sony reader"), users in community forums like MobileRead suggest this manual reinstallation process: Connect the PRS-300 to your computer via USB. proshivka sony prs 300 skachat
Reconnect to the computer and delete the "sony reader" folder from the internal memory. : While the Sony USA Support page remains
: Press the RESET button on the bottom edge using a paper clip. : Press the RESET button on the bottom
: Power off, then turn it back on. While the screen displays "Opening book...", hold the Down Arrow and the 0 button simultaneously until the "Reset All" screen appears.