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BlackBerry® OS Smartphones

New Member
Posts: 1
Registered: ‎06-01-2012
My Device: Torch 9850
My Carrier: Sprint

Video file with a .lock extension

Hi All,

Need some help.  I was recording a video on my 9850 when the battery died.  After charging I could not find the video file.  I connected to the computer and found the file, but it had a mp4.lock extension instead of the normal .mp4.  I changed the file name to .mp4, so it shows as a video file, but when I try to play it gives me an error "unsupported format".  Any thoughts?




New Contributor
Posts: 3
Registered: ‎10-07-2013
My Device: 9810
My Carrier: 9810

Re: Video file with a .lock extension


same problem on my blackberry device 9810.please give me any solutions.