Fix OneDrive Not Opening PDFs on Android Tablet Over Hotspot
Question details
The user is unable to open PDF files stored in OneDrive on a Samsung tablet when connected to a mobile hotspot, despite the app working normally on standard Wi-Fi networks.

- Product
- Microsoft OneDrive
- Device & OS
- Android (Samsung Galaxy Tab A8)
- Scenario
- Accessing and opening cloud-stored PDF documents while connected to a cellular mobile hotspot.
- Observed behavior
- PDFs fail to load or open in the OneDrive app when connected to the hotspot, but open successfully when the tablet is connected to home or work Wi-Fi networks.
Before troubleshooting, ensure that your mobile hotspot has an active internet connection by loading a standard web page on your tablet, and check if your cellular data provider restricts tethering or background data.
Isolate the Network and Device Issue
Determine whether the connectivity problem is caused by the specific tablet, the mobile network restrictions, or a glitch within the OneDrive app itself.
Mobile hotspots often have different network protocols and throttling rules compared to standard broadband Wi-Fi. Testing across multiple devices helps pinpoint the exact point of failure.
Connect a different smartphone or tablet to the same mobile hotspot and attempt to open a PDF in the OneDrive app to see if the issue replicates.
Observe the screen on your Samsung Galaxy Tab A8 when the PDF fails to open and note any specific error codes or prompts that appear.
Navigate to Settings > Software update on your tablet to check your Android and One UI versions, and ensure the OneDrive app is fully updated via the Google Play Store.

Adjust Network and Data Usage Settings
Ensure that your Samsung tablet and the OneDrive app are not restricting data usage over metered connections like mobile hotspots.
Open and Manage PDFs Offline with WPS Office
If cloud storage apps struggle with mobile hotspot connectivity, downloading your files and using WPS Office provides a robust, offline-capable PDF reader that easily handles documents on your Android tablet without relying on a constant network connection.
- 1. Download WPS Office: Install WPS Office for free from the Google Play Store on your Samsung tablet.
- 2. Save the PDF locally: While on a stable home or work Wi-Fi network, download the necessary PDF files from OneDrive directly to your tablet's local storage.
- 3. Open with WPS Office: Locate the file in your tablet's file manager, tap the PDF, and select WPS Office as your default application to view it.
- 4. Work completely offline: Read, annotate, and manage your documents anywhere, completely bypassing the need for a mobile hotspot connection.

Frequently Asked Questions
Why does OneDrive only work on Wi-Fi and not my mobile hotspot?
This frequently happens because devices often recognize mobile hotspots as 'metered connections'. To prevent unexpected cellular data charges, Android or OneDrive may automatically pause or restrict downloading large files, such as PDFs, over these networks.
How can I force OneDrive to download files over a metered network?
Open the OneDrive app, go to Settings, and check the network preferences. Ensure that any options restricting downloads, camera uploads, or syncing over metered networks or cellular data are turned off.
Can clearing the OneDrive app cache fix file loading errors?
Yes, corrupted temporary data can prevent files from opening properly. Go to Settings > Apps > OneDrive > Storage on your Android device and tap 'Clear cache' to force the app to retrieve fresh data from the server.
What should I do if a PDF file in OneDrive says it is corrupted?
A 'corrupted' error can occur if a download is interrupted by a weak hotspot signal. Try downloading the file again when you have a stronger connection, or download it fully to your device's local storage before opening it with a local PDF reader.




