Android Help. I can't access the file system on my nexus 7.

[Bryon15]

Here's everything I did. My nexus 7 was and still is rooted. Anyway my nexus 7 had slowed down recently. So I was advised to reinstall the stock rom. So I backed everything up that was on it and installed the latest version of android (4.2.2). It worked. It's not slow anymore. I transferred the backup files back onto it. But now there's a big problem. I can't do anything with the file system using es file manager. I can't delete a file that's on there, I can't edit anything, I can't create a new file or folder, I can't download anything. I just tried to download the music video beat it by Michael Jackson from youtube using the tubemate app. It said: Error: open failed: EACCES (permission denied). This is horrible. Can anyone help me?

 

[Zorua]

Looks like permissions screwed up somehow. I'd advise you to root it and install a custom recovery (preferably TWRP) to run a permissions fix, or you could just root it and run "su" followed by "fix_permissions" from a terminal in Android.

 

[Bryon15]

I did a permissions fix. It still didn't work. Anyway I found this.

http://stackoverflow.com/questions/15985631/open-failed-eacces-permission-denied-in-a-virtual-device

http://stackoverflow.com/questions/12415157/filenotfound-open-failed-eacces-permission-denied

I read it. It says to fix it I have to remove and recreate the virtual device and change the size. But I have no idea what that means or how to do it.