I put the improvements described in this thread in a flashable zip. I know it's not much of effort to make these modification manually, but it also wasn't much work to make a flashable ZIP for it.
Please note that this zip also replaces the build.prop file. Any modifications you made there will be lost and your device might get recognized as C2105 instead of C2104. If you don't want to loose the modification you made there, you'd better not use this ZIP.
Tested on C2105, stock firmware 15.3.A.1.14 (android 4.2.2) w/ Phantom kernel
Last edited by StillBrilliant; 27th April 2014 at 11:24 PM.