Ring Battery Doorbell Plus firmware update is stuck or failed

The checks in more detail

Ring holds back updates when the charge is low, so charge the pack to a good level and wait. A weak signal at the door is the second cause, since the download is large and a poor connection fails and retries. Check Device Health for the signal, and improve it with a Chime Pro or a closer router if it is weak. Power cycle the doorbell by removing the battery pack for ten seconds and putting it back, then wait. Do not remove the battery while the light ring is updating, as that can interrupt the process.

Make sure the doorbell is online and not in a mode that disables it. Update the Ring app on your phone, since the app and the doorbell must be compatible. If the version in Device Health has not changed after a day, restart the router and charge the battery fully. A doorbell that is stuck for days may be offline without the app showing it, so test live view. If it stays on an old version with a full battery, a strong signal and a restart, set the doorbell up again by resetting the setup button for 20 seconds, which also forces a fresh connection.

Keep a note of the version before and after. Because updates add features and security fixes, do not ignore a doorbell that has been stuck for weeks, and contact Ring support if the update never completes. A spare charged battery lets you swap packs during an update delay: if the battery sits low, fit the charged one and the update usually proceeds within minutes. Keep the removed pack charging in the house. If you live where nights are cold, remember that low temperatures lower battery output, which can hold back updates in winter, so a warm battery from indoors helps the doorbell complete the update.