Convert LSAV to MP4

What are lsav files, and where do they come from?

LSAV format has been introduced in one of the latest versions of the MIUI Gallery app for Xiaomi Redmi smartphones and is used to store videos tagged by the user as hidden. These are not just renamed files, as was the case in previous versions of the app, but password-protected and encrypted files, exclusively of video type (often MP4).

By default, all .lsav files are located within the ~/​MIUI/​Gallery/​cloud/​secretAlbum folder on Xiaomi device, but they also can be backed up and synced via the Xiaomi cloud.

How do I recover MP4 videos from .lsav files?

According to the Xiaomi website and community forums, the only way to recover the videos from .lsav files is to know the password and unlock them in the MIUI Gallery app. If the files were downloaded to your computer or sent to you via email, you have to place them back in the original folder on your mobile phone and again use the password to unlock the files.

No other way to recover mp4 files from .lsav files exists.