Unable to view files (copied from computer)
I dont have any file manager installed, could that be the problem ? How can I install my first file manager through pc ? 



Go to the play store and look
for a file browser of your liking. Install it on your phone.
Connect your phone to your computer. Go to command line/terminal. Make sure you have adb installed, if not install it now. 
Use the adb command install &lt;path-to-apk&gt;.