I've read through the other threads, non of which are relevant. I purchased a new Galaxy S4 and truely do not use it for ANYTHING! The only apps I have downloaded are M8 and Navfree satnav software. Also XE currency converter and Skype. NOTHING ELSE! YET MEDIASERVER USES UP 73% OF MY BATTERY ON THE BATTERY METRE!!! AND IT SUCKS IT DRY WITHIN 6-7 HOURS OF IDLE! The screen only uses 5% so you do the math! I barely use the phone! People keep saying its something to do with music or video? I DO NOT DO EITHER AND NEVER HAVE! GOD this thing has driven my nuts the last 4 days. I needed to use my phone and it died on my at the worst possible time the other day. Now I keep the phone plugged in everytime I'm at home or in the car, just to keep the charge up. Can someone please tell me how to stop what ever this is? I would greatly appreciate it! Thank you!