[Replicant] Is the i9300 still the best phone for running Replicant? (and a few other questions)

doak doak+list at posteo.net
Tue Oct 26 21:03:54 UTC 2021


Hello Sophie,

> 1) Commonly, both sides will hear nothing.
> 2) Less commonly, audio on my side from the other person will be
> heavily distorted (but speech can *barely* be made out) but I am heard
> with no problem on the other side.
> 
> I'm assuming this is some kind of codec issue - maybe 4.2 doesn't
> include newer codecs and whether or not 1) or 2) happens might depend
> on whether the other side can fall back to older ones? - but that's a
> complete guess on my part. However, it used to be that calls would
> work fine, then some calls would fail in one of these two ways, and
> now pretty much every mobile call will fail.
> 
> Is my diagnosis of the problem correct, or is there something else
> going on here?


I would say you guess is quite good.
I had the same as you described in the second point some years ago (already with Replicant 6.3).
I figured out that it only happened with 3G, hence setting the preference to 2G was a quick
workaround. Since I knew that it had worked before and I switched the hardware (another i9300)
my best guess was that it has to be caused by an older or more buggy baseband firmware.
If I remember correctly updating that one fixed the issue. You may check your baseband firmware
revision. Mine is 'I9300XXUGNA8'.
Updating the baseband needs Windows tools, at least as far as I know. But perhaps there are
alternatives.


Regards,
doak


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