I found an sd card that was definitely in someone's android phone. Is there any file within the card that would have it's owner's info, so that I might contact them somehow and return what they've lost? Just going out of my way to be a good samaritan here....
Android by default doesn't save any personally identifiable info to the SD card, the system backs up/syncs important data to the web, not the SD card but there may be a chance that an app has saved something useful to there . Most apps store their main settings (which is where things like login names/email addresses would be) in the phone's internal memory, only using the SD card for storing larger files and cached data.
The most obvious would be to look for pictures, but depending how they use their camera, etc that may not be any help. They may have files with identifiable info in the
Download folder, from saved email attachments, web pages, etc.
For some common apps that may be likely:
If they've used an app like LifeSaver to back up their call log or message log to their SD card, then you could open that and look for frequently contacted numbers. This would be a text file in a folder called
LifeSaver-F that can be opened in Notepad.
If they use Dropbox, they may have saved files with useful info into the
Possibly the photos could be helpful
I just found someone using Spotify data on the SD card at path:
Then check the URL: https://open.spotify.com/user/<10-digit-user-id>
That was their Spotify account.