L440: Sound problems internal speakers

When I pause playback of an .mp3, there's permanent white noise coming from the internal speakers.
Stopping the playback stops the white noise after approximately 4 seconds. I never had this issue with any laptop / soundcard. Can this be fixed?
I have the latest BIOS and drivers installed. Headphones are fine (no white noise).
Maybe the inbuilt L440 soundcard has a problem. I had to return my first L440 because there was a loud plop when starting playback and the left speaker was way quieter than the right one.
In the German part of this forum people are reporting problems realted to the internal speaker (cracking sound, white noise).
Solved!
Go to Solution.

Blade,
It could be the speakers have a pinched wire causing a short, so the suggestion from the support specialist could be a good suggestion.
However, I believe we are aware of and have a fix for these symptoms via BIOS. Let's give that a try first.
We believe there was a problem that caused these symptoms in BIOS 1.53 through BIOS 1.58 on L440 and L540 systems.
Download and install the latest BIOS version 1.60 (J4ET60WW), or newer, from the Lenovo eSupport website:
BIOS Windows Update Utility version 1.60:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037206
BIOS ISO CD Update Tool version 1.60:
http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037264
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
Mark Hopkins
Program Manager, Lenovo Social Media (Services)
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L440: Sound problems internal speakers

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