Error code
Google Play 921
GOOGLE PLAY921
Android Error Code· An error code shown by Android or the Google Play Store.
What it means
Download error — the Play Store download queue is corrupted.
How to fix it
- Clear the cache and data for Google Play Store.
- Restart the device.
- If the problem persists uninstall all Play Store updates and allow it to update automatically.
Not affiliated with Google Play. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More Google Play codes
- 101Download error — the app cannot be installed because a previous version could not be fully removed
- 403Access forbidden — the Play Store server rejected the request for this app or file
- 406Download error — the Play Store received an unexpected response from the download server
- 491Download error — the Google Play Store cannot start the download
- 492Download error — the Play Store data is corrupted
- 495Download error — authentication failure connecting to Google servers
- 498Download error — not enough storage to complete the download
- 504Download error — a network timeout occurred while connecting to Google servers
- 505Incompatible permissions — the app requests a permission not supported by this version of Android
- 905Download error — the device is not registered with Google Play
- 907Download error — the device is not certified for Google Play
- 911Download error — Play Store session reset or interrupted download