5 min video taken by LG G5 is corrupted. Anything to do? I have an LG G5, and I recently took a video of 5 minutes with it (the maximum) which appeared to be corrupted.

The phone stopped the video alone since it arrived to the maximum recording time, and started saving - something that took some pretty long minutes.
After a while of not touching my phone (to not accidentally interrupt the saving) I wanted to watch the video and realized it's corrupted and can't be open.

In the file explorer, I found two files in the format of DATE_TIME.mp4 (1.6GB) and DATE_TIME_temp.mp4 (0KB).

Any possible (free) way to fix this video?
How can I make sure it won't happen next time?

Thanks!

Note: If relevant - not rooted, stock rom, latest update.
MP4 Fixer 


  MP4 Fixer on Google Play


This used to be a common problem with Screen Recorders that didn't save the information of recorded videos correctly. Using MP4 Fixer i could read the video and fix the duration information allowing normal viewing.