GoPro video repair
GoPro video repair: what it usually means
GoPro clips can break after battery loss, crashes, SD card issues, overheating, or stopping power before the recording finalizes. The footage may still exist inside a file that normal players reject.
If the file has real size, there may still be recoverable frames and audio inside. The safest first move is to leave the original untouched and create a separate repaired preview.
Do not trim, re-export, repeatedly convert, or overwrite the damaged file. If you need to experiment, work from a copy and keep the original exactly as it is.