What to do when a video will not play or a phone runs out of space: repairing corrupt MP4 and dashcam recordings, how the desktop repair programs compare, and freeing storage without losing files. NasrTech builds Video Repair and Media Rescue for Android, and these guides cover the same problems those apps are made for.
5 guides
Your MP4 shows 0:00, no thumbnail, and every player refuses it. Here's what actually broke, what the VLC trick can and can't do, and how to repair the file without uploading it anywhere.
The last file before an impact or a shutdown is the one that won't open — because that's the recording the camera never finished writing. What to do, in order, before you overwrite it.
Stellar is the best-known desktop video repair tool. But its free version previews only part of the file, licences start around $59.99, and there's no Android version. Here's the honest comparison.
Repairit's free online tier repairs one video up to 50 MB — and you upload it to their servers first. Here's an Android alternative that repairs on the device and previews the whole result free.
A practical 2026 guide to freeing up storage on your phone — Android and iPhone. See what's eating space, clear it safely, and stop it filling up again.
