My phone (Innjoo Fire) came with YouTube pre-installed. Unfortunately it seems to be a very old version. I can't update it in the play store,it doesn't give the option. I tried deleting and reinstalling. From the play store I got an error when installing so I tried an apk. The apk downloaded but when I tried to install it said that I already had a file of that name on my phone. Any ideas of how I can fix this?