Mp4 Video file with a .lock extension

Hi All,
Need some help. I was recording a video on my 9360
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". This video has an important in my life. Please help me to get this video working... Please...?
Akhil

The video file was never finalized by stopping the recording. When the video player is recording it adds that lock label so that nothing else can access it while recording. When the battery dies in the middle the file doesn't get unlocked. I doubt there is any way to ever view that file. Sorry.
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