Man...do you have tester? if you have do this,.,. without the bat ,put the testers in each side of the bat terminal,, then check if the cursor moves... then switch the tester in each side, again check if it moves... if both terminals upon switching moves .. man your phone is grounded .. go to your nearest service center to fix that..... and if only one side move... you have to replace your speaker (earpiece>) ....only professionals do it....tnx..
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I also have a strong electrical buzzing noise. It comes and goes (mostly comes) and isn't related to environmental issues. It appears I need to take it to a service center.
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