yes joerg has a DRAFT version of the SOP for the buzz fix rework of A5/A6. Not everybody has the buzz issue.
1. It's a draft. 2. We need to have some independent test of the SOP arne anka wrote: >>>> "buzz / echo / hiss"... no software change can fix buzz. It's baked >>>> into the hardware and you will have to do fairly extreme meddling >>>> with your soldering iron to impact it. >>> Thanks, I hadn't seen that so clearly stated before! (i.e. that buzz >>> is known to be 100% a hardware issue). > > probably since everyone expects everyone else to know it :-) > it was a hot topic some months ago, then someone (jörg?) came up with the > definite statement that it is hw related. > since then we're all waiting for working and more or less easy diy fix -- > which seems to be reached now. > >> weird though .. as I never experienced buzz in my calls (although I >> have to admit I didn't make more than 10 calls max uptill now) > > plug in the wired headset ... > >>>> "Echo" reacts to some tweaking in alsa and maybe Calypso firmware >>>> option selection, I guess this turn up in rootfs images as best it >>>> can. >>> OK, but do you need to be so imprecise about this? What can't there >>> be a definitive solution? > > because the echo is caused only partially (if at all) by hardware. > especially gsm 1800 providers like e-plus in germany have been reported as > echo prone. > additionally people reported different experiences depending on their > location in time and space. > and last but not least: nobody knews what exactly N0187 is doing, and if > it will live trough firmware updates, since it is not documented. > > since echo is a very complex issue, there are more then just one solution > more or less working for more or less people ... > > _______________________________________________ > Openmoko community mailing list > firstname.lastname@example.org > http://lists.openmoko.org/mailman/listinfo/community _______________________________________________ Openmoko community mailing list email@example.com http://lists.openmoko.org/mailman/listinfo/community