Visit this thread and post #2. There you can find the exact ruu you need.
Step to use ruu on post #1
Lastly remove the sn and imei from your post....
Hi TS, Im not an expert on any of this but what I suggest is to download and install an app to check you battery usage from full to atleast 10% to have a better look into things. It most likely that something is making your processor to run in ful...