: 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
Copy the "sony reader" folder to the root of the device's internal memory. Disconnect the USB and access the on-device menu. proshivka sony prs 300 skachat
If the device becomes unresponsive during firmware changes, a hard reset may be necessary: : While the Sony USA Support page remains