The Dropbox desktop application can handle files and folders of any size and any amount of files and folders. If an upload is failing on your mobile device, you can try uploading the file via the Dropbox desktop application on your computer. This is especially true over a mobile connection, where connectivity can be intermittent.

Unfortunately our mobile clients do not have a 'resume download' feature, so large files (usually those larger than 100MB) may not download properly. You may encounter issues downloading large files from the Dropbox app on your mobile device. Is my download or upload failing due to file size? You can still find your uploaded photos and videos in the Photos tab or at /photos. This change didn’t remove photos or videos you’ve uploaded to the app. Note: In December 2021, we deleted the albums feature from the Android app. Tap the menu icon (horizontal lines) in the top left and then Settings.If you are connected to internet and still having issues, try signing out and signing back in: If you can't complete one of these actions, verify that you have a strong WiFi or data connection and try reloading your file. The Dropbox Android app requires an internet connection to open, preview, and upload or download files. What if I can't open, preview, upload, or download a file on the Dropbox Android app? If this is the case, you will not be able to view the file in the Dropbox app.

If you cannot view the file in another app, your file may be corrupted.

Choose an approriate app to open your file in (for example, if you're exporting a photo file, choose a photo viewing app).

Tap on the arrow to the right of the file.

Open the Dropbox app and navigate to the file.Try viewing the file in a third-party application to find out if there's an issue with the actual file: If you can't open files saved in your Dropbox on the Android app, it could be because the file is corrupted.

How to use dropbox app for android