I accidentally deleted a video on my Nexus 5 running Android (6.0.1) Marshmellow. The device uses internal storage only. I'd like to recover the video and from what I already know from the Internet, there are desktop/mobile apps that can recover the file.
The problem is, all of the apps I've tried need root access to the system. Rooting the phone, on the other hand, will can wipe all my data (see the comments below), as far as I understood the process correctly. So, ironically, if I root, there will be no file to be restored.
1. Is there any way to recover the lost file without the root access?
or
2. Can I root the phone without deleting all its data?