2025 sparked some incredible conversations across our community 👩💻. Discover the highlights and see what’s ahead in 2026.
Forum Discussion
JohnK2
6 years agoCollaborator | Level 8
Decryption fails running iOS 14.2
Just updated iPhone and iPad to iOS 14.2. Now, trying to open an encrypted file, it tell me "Decryption Failed. Null" If I open with Excel, it works fine. Anyone else having this issue?
I also have success opening an encrypted file within Dropbox after updated 14.4 IOS update. Thanks for everyone's help and input.
259 Replies
Replies have been turned off for this discussion
- Psurret5 years agoNew member | Level 2
I have the same issue, did you manage to resolve it?
- digitalsimo5 years agoNew member | Level 2
Since 2 weeks I am no longer able to open excel files (most of them on dropbox from years) protected with password from the mobile app.
Dropbox prompt me the "insert password form", but when type it the result is "decryption failed (null)". The same files are easily accessible and readable both on pcs and macs, with the same password...
How can I solve this matter?
Thank you so much
- cc145 years agoExplorer | Level 3
I have excel on my iphone, but I can't seem to open the protected .xlxs file from dropbox using excel. How can I do this to avoid the decyrption error?
- Nealwald5 years agoHelpful | Level 7Ok everyone. It appears this issue is resolved on iOS 14.4. Have a nice day.
- ltx5 years agoHelpful | Level 6Hi, I can confirm the iOS 14.4 update fixed the Dropbox password issue too, just updated. You should update for the important iOS security patches too! Many thanks for the heads up Nealwald!
- CEBR5 years agoHelpful | Level 6
I also have success opening an encrypted file within Dropbox after updated 14.4 IOS update. Thanks for everyone's help and input.
- hardingt123455 years agoNew member | Level 2
Same issue with Office documents - this is how I protect my passwords - cannot open on IPhone
- Nealwald5 years agoHelpful | Level 7Update to iOS 14.4. This resolves the issue
- humdrumer5 years agoNew member | Level 2
Hello, i use dropbox for my files, which i have used in dropbox for reading many years. Some of my files is protected by password. It is some time ago when i can't open these protected files. When I'm trying enter my password the Dropbox say: Decryption failed.
Can someone help me with solution please.
Thank you ...
- CEBR5 years agoHelpful | Level 6
PLEASE READ most recent message thread. On Apple devices (phone & iPad) this is resolved by updating these devices to IOS 14.4
About View, download, and export
Need support with viewing, downloading, and exporting files and folders from your Dropbox account? Find help from the Dropbox Community.
The Dropbox Community team is active from Monday to Friday. We try to respond to you as soon as we can, usually within 2 hours.
If you need more help you can view your support options (expected response time for an email or ticket is 24 hours), or contact us on X, Facebook or Instagram.
For more info on available support options for your Dropbox plan, see this article.
If you found the answer to your question in this Community thread, please 'like' the post to say thanks and to let us know it was useful!