The File Extensions Database


.LOCK3 File Extension

  • Developer by: BlackBerry (Research In Motion Limited)
  • Category: Encoded and encrypted Files

What is an .LOCK3 file?

.LOCK3 is BlackBerry encrypted 3GP file

The lock3 file extension is associated with the BlackBerry smart phones. File contains encrypted video in 3GP file format. Protected BB video files can be decoded only in BlackBerry device, where they was encrypted.


How to open:

BlackBerry phones are able to open *.lock3 files.

How to convert:

As far as we know, this .lock3 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to solve problems with LOCK3 files

  • Associate the LOCK3 file extension with the correct application. On :
    Windows: Right click on any LOCK3 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.LOCK3 files". Mac: Right click (or Ctrl-click) the LOCK3 file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .LOCK3 is BlackBerry encrypted 3GP file. Because only the current version supports the latest LOCK3 file format. Search, therefore, e.g. on the BlackBerry (Research In Motion Limited) manufacturer website after an available .LOCK3 is BlackBerry encrypted 3GP file update.
  • To make sure that your LOCK3 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.