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From: Joerg Reisenweber &lt;joerg@openmoko.org&gt;
To: support@lists.openmoko.org
Date: Tue, 5 Aug 2008 17:55:58 +0800
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Subject: Re: Buzzing sound
Cc: Sebastien Nanchen &lt;snanchen@hotmail.com&gt;
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Am Di  5. August 2008 schrieb Sebastien Nanchen:
&gt;=20
&gt; Hello,
&gt; =20
&gt; I played with my Freerunner for some days now. I am part of the users who
&gt; have the &quot;buzzing sound&quot; problem. I modified the sound configuration as=20
described
&gt; in the wiki and was able to eradicate the echo (caller-side) and to make =
the=20
low-level
&gt; voice volume (called-side) acceptable.

=46ine! :-)

&gt; But the buzzing sound stays and make the FR=20
&gt; unusable as a phone (I tried both OM 2007.2 and the latest image of Qtopi=
a).

The &quot;GSM-buzz-noise&quot; issue isn't related to image used. At least that's wha=
t=20
we think of it at the moment. It's a hw-issue. (Please note we fixed other=
=20
hw-issues by sw-patch - compare sd-card/GPS). Anyway there's no *bug* in an=
y=20
of the sw-stacks/images that causes this issue, so changing image won't hel=
p,=20
until we eventually might find a sw-fix for the hw-issue.


&gt; =20
&gt; I know this was much discussed in the ML, and I'm sorry to come with this=
=20
topic again,
&gt; but I haven't found any answer yet.=20

There isn't any yet. My regret :.(

&gt; I would know if y missed some important information=20
&gt; about a tweak solving this issue?

Only thing you may try for now is changing GSM-provider, as it seems to be=
=20
very clear the issue is to be found on some GSM-networks, and not (or less)=
=20
on some others. Generally the 1800/1900 networks seem to be more likely to=
=20
cause this problem than the 850/900 networks. For Germany I got reports f=20
noise only for E+ network (and resellers)

&gt; =20
&gt; If not, does somebody have an idea about how many users are experiencing =
the=20
same
&gt; problem (10%, 30%, more?)

Hard to tell. We don't get sufficient number of reports, and due to nature =
of=20
reports nearly all are problem-reports, people without problems usually don=
't=20
post a report.


&gt; =20
&gt; Is there any hope we can use our freed phone as a phone in a foreseeable=
=20
future?

See above...
Investigation on issue continues.

cheers
jOERG

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