1. AC Question's Avatar
    After updating my Galaxy S4 to lollipop on most of my calls I can't hear anybody and nobody can hear me, does anybody know the solution to this please? Also my phone runs really slowly since the update, has anybody else experienced this and got a solution?

    Thanks in advance for you comments.
    04-16-2015 04:39 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! I would bring the phone back to your wireless store and ask them what they can do, since it was their update. In the meantime, try wiping the cache partition: http://support.t-mobile.com/docs/DOC-5744
    04-16-2015 08:38 PM

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