[hamagc]

what i found to work very easy for me was using droidexplorer for windows. you'll need to install adb and drivers so you can connect but when you open droidexplorer it opens up everything and you can make the changes you need, very user friendly imo. it's a drag and drop environment. if it is something in the rootfs you'll need to mount -o rw,remount / in adb in order to make changes there.