BD File App Technical Support

This page provides technical support information for the app. If you encounter a problem, please check the frequently asked questions below first. If the issue remains unresolved, feel free to contact us by email.

Frequently Asked Questions

• Why can't the app access my device's storage?

To protect your privacy and security, iOS uses app sandboxing to restrict access to other apps' data and system storage. As a result, BD File cannot analyze or clean up storage across your entire device.

• Why is there no app management feature?

To protect your privacy and security, iOS restricts apps from obtaining a list of other installed apps. As a result, BD File cannot provide app management features.

• What should I do if the app crashes, runs slowly, or cannot open a page?

Please try the following steps:

  1. Close the app and reopen it.
  2. Restart your device and try again.
  3. Make sure your device is running a recent stable release of iOS.
  4. Update the app to the latest version.
  5. Check that the relevant permissions are enabled.

If the issue persists, please email our support team with your device information, iOS version, app version, and steps to reproduce the issue.

• What is "My Files"?

"My Files" is BD File's own storage space on your device. Files stored here will be deleted when you uninstall the app, so please back up any important files.

• Why does Nearby Devices show no results?

There may be no SMB/FTP services advertised on your local network, or the services may not have registered themselves with mDNS.

• Why does Wireless Transfer get interrupted?

Keep the screens on and the app in the foreground on both the sending and receiving devices. If either screen turns off or the app moves to the background, the system may restrict BD File's network connections and background activity, interrupting the transfer.

• Why can't Wireless Transfer discover a device?

Leave the Receive Files page, then open it again. This will trigger the receiving service to advertise itself again.

• Where are files received through Wireless Transfer saved?

In the "Home → My Files → Received" folder.

• Will more cloud storage services be supported?

We are continually working to add direct access to more cloud storage services.

Tianyi Cloud

We have not received a response to our application or follow-up emails, so we are currently unable to move forward.

China Mobile Cloud Drive

Our application was declined because our user base is too small. The provider is currently not partnering with small developers.

Nutstore

After enabling third-party WebDAV authorization in Nutstore, you can sign in through "Connect → WebDAV".

Official Nutstore WebDAV documentation: How to enable WebDAV authorization for third-party apps.

Quark Drive, Xunlei Cloud Drive, and other cloud storage providers

These providers have not yet made developer access available, so we are currently unable to integrate them.

• Where are files downloaded from cloud storage, SMB, WebDAV, or FTP saved?

In the "Home → My Files → Download" folder.

• What should I do if SMB, WebDAV, or FTP cannot open files, fails to complete an operation, or encounters an error?

We are continually improving SMB, WebDAV, and FTP functionality and usability. If you encounter a problem, please email the details to support@liuzhosoft.com. We will work to resolve it as soon as possible.

• Will automatic file synchronization be supported?

Automatic file synchronization is planned and will be supported in a future version.

• Will there be a PC version of BD File?

A PC version is planned, but no release timeline has been set.

Feedback and Suggestions

If you would like to see additional device information, testing features, or widget capabilities, please email us with your use cases and suggestions.

Contact Us

To help us identify and resolve the issue more quickly, please include as much of the following information as possible in your email: