I started having significant battery drain about a week after installing the update. I use GSAM Battery Monitor, which shows MediaServer is using a lot of my battery. Anyone know what that is? I called HTC a couple weeks ago, and they had me recalibrate the battery. Later, I wiped the cache (using the directions outlined above).
After recalibrating the battery, the battery was holding the power again (and MediaServer usage dissapeared from GSAM) for about a week. Then, suddenly (for reasons I can't figure out), the battery started draining quickly again and, sure enough, the MediaServer showed up again in GSAM Battery Monitor as the culprit. I called HTC again, and they had me do a factory reset. After the factory reset, the battery was good again (and MediaServer did not show up as using power in GSAM) for about a week.
I have search the web extensivly for MediaServer and battery drain. There is a lot of discussion, but I can't figure out how to correct the problem. It keeps re-appearing every couple days now.
Any suggestions?