When I walk through the system folders of my old Android phone to clean it, I could see that there was a mtklog folder containing an audio_dump folder, itself containing many files in the form VMLog_%Y_%m_%d.vm in the Internal Storage folder.
As the name of the folder suggests that I have to make audio files, I tried to play them as a PCM RAW file, without success. Despite several searches on the file format, I did not find any information.
Someone knows what these files are, if it is possible to read them to know what they are, or just if there is a risk to delete them because I would not like to make the system unstable by deleting them?
/sdcard
) won't make system unstable. Stock apps are habitual creating such type of junk. But if you are curious, you can trystrings
on those files to take an idea what they contain. Or you can watch the directory to track which and when an app/process writes those files.strings
andhexdump
don't work, you can watch the directory to find out the culprit process.