I disable apps I don't use: Google Currents, Magazines..
Also, how many items are you auto syncing w/ Google? I sync 4 items only! Calendar, Contacts, Tasks and Email.
Take a look at Seidio Active Case
https://forums.androidcentral.com/e?link=http%3A%2F%2Fwww.shopandroid.com%2Fseidio-active-case-with-multi-purpose-cover%2F4AA12596.htm%3Futm_campaign%3Dcommunity%26utm_source%3Dvb_ac%26utm_medium%3Dcontent&token=XcjII9zE
Sent from my Nexus 7 using Tapatalk 2
There's definitely a volume problem with 4.2.1. I'm using Shure SE215's w/ Fiio E06 Portable Amp and there seems to be about a 25% loss in volume. Hopefully, 4.2.2 will fix the issue.
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