Recently I purchased a phone on Ebay that arrived just yesterday from China. It works fine except for a few things. I've only installed about 5 apps and it is now telling me, when I try to install a new app, that there is an error downloading because there is insufficient space. Now, the storage section in settings shows I still have 3.99 GB available out of 4 on internal storage, and 3.92 GB available out of 7.39 on the SD card. How is there insufficient space? I've tried installing different apps to make sure it wasn't just the app I was trying to install. I've tried lots of other things too, like clearing the data/cache. I've rebooted several times as well. Nothing seems to help. I've scoured the internet for some answer, but there does not seem to be an answer that works for this phone.
Here's some information on the phone.
Thu Apr 24 14:43:31 CST 2014
Custom build version
I've also been looking around to see if anyone knew a for sure way to root this thing as well as any custom ROMs. I was hoping maybe a custom ROM would cure my issue with the play store.