If the device becomes unresponsive during firmware changes, a hard reset may be necessary:
Reconnect to the computer and delete the "sony reader" folder from the internal memory. proshivka sony prs 300 skachat
Since official software is discontinued, modern users typically rely on these alternatives to manage books and firmware: If the device becomes unresponsive during firmware changes,
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