This issue cropped up for me on the Xperia 10 ii / 4.4.0.56… Seems better on 4.4.0.68
XA2 Dual, 4.4.0.64
Just happened again.
Multiple reboot doesn’t fix.
Some more news:
Interestingly enough, this bug seems to be located out of SFOS partitions. (if I guess correctly)
I tried to reboot several times: no audio
I tried to restore /dev/mmcblk0p76 ( / and /home ): no audio
I tried to reflash SFOS: no audio
After reflashing Android with Emma, audio is back.
Audio still here after an new SFOS reflash.
Audio still here after restoring /dev/mmcblk0p76 ( / and /home ) over the SFOS reflash.
Something related with phonecalls audio, located out of SFOS, breaks.
But I have no idea of what is where.
I’d be +curious to understand more. Any ideas?
if so then it’s probably sony binaries.
I think issue is on initializing audio DSP that is used to process voice on calls e.g. echo cancelation of call.
And it’s bug on sony binaries. And sometimes problem hapends during boot and you don’t have voice on calls until succeful reboot.
XA2 4.5.0.19 also. Three reboots were necessary to get rid of it after the 4.5.0.19 update. We should ask at one of the next community meetings, if there are any news to share. If the cause is outside of SFOS, the problem will probably accompany us until the EOL of the XA2 
Bugs are strange sometimes.
This never happened again to me. (IDK if relevant: I flash new SFOS versions, most of the time)
Had this problem on my XA2 for at least one year. I could reboot (once was enough for me) or I could restart adsprpcd (with qCommand it took me a couple of seconds). This happened at least once a month on my phone.
However, had to revert to Android with Emma and then reflash latest 4.4 version of SFOS about two months ago. This looks like it has cured it for me. Hope it helps others too!
P.S. This time I’ve flashed over Android 9. Previously, I’ve flashed over Android 8. Using the recommended firmware both times.
I still get this every now and then on my XA2 Ultra, but the qCommand workaroung has always fixed it so far.
Sorry, meant still getting on latest version - 4.5.0.19
I noticed that rebooting disabling android support at boot helps. Perhaps a race conditions on hw between Jolla native apps and android apps
Thanks gfwp for the workaround! No amount reboots would help me but disabling android
support at boot and rebooting the device restored audio during phone calls.
I have had my Xperia XA2 Ultra with 4.5.0.21 (Struven ketju) in this state for weeks now.
I could make Whatsapp calls and listen to music with the Sailfish Media player but had
no audio at all (microphone, earpiece, speaker and bluetooth headset would not work)
during phone calls.
Having lost audio during phone calls rendered my Sailfish XA2 phone all but useless
for weeks and even with this workaround the phone seems unreliable.
1 Like
What I observed was that the phone with heavy use of Android Apps hit this problem much, much more often than those with light use of Android Apss. And
was my friend… Reliable and fast.
1 Like
To me this is a make-or-break bug:
My wife called me in emergency and I couldn’t hear her.
1 Like
Sorry to hear you were put in such a difficult situation @smokku.
Just for completeness, could you please share your device type and Sailfish OS version.
1 Like
Sony Xperia 10 III
Sailfish OS 4.5.0.24
Sorry to hear that @smokku. I also missed yet another call yesterday (due to no audio) causing a lot of anxiety at both end of the line!
I have now disabled android support altogether and only enable it to read my WhatsApp or Email (K-9 Mail) messages… and then reboot the device afterwards to increase my chances of receiving phone calls (Start Android App Support on bootup is disabled).
This is by far the worst problem I currently have with Xperia XA2 Ultra running Sailfish OS 4.5.0.24, besides the phone insisting on 2G mobile data regardless of Prefer 4G, Bluetooth dropping audio in the car after every track, android apps sometimes not having mobile data, Jolla Mail not able to sync emails, web Browser being old/slow/unstable… anything else I can live with but I really need ability to make and receive phone calls.
1 Like
I’m also still having this issue, mostly an annoyance but I have missed important phone calls because of it. It’s been this way for several updates now (currently on 4.5.0.24), seems a huge shame that such a fundamental issue (a phone being unable to make phone calls) hasn’t been resolved after all this time.
2 Likes
It also happened to me few times since my last post here (XA2 4.5.0.24).
The other end had an Iphone. (Not sure that the brand changes something though)
What brand were your contacts calling with?
I had just a similar experience, unfortunately. XA2, 4.5.0 but this isn’t a recent regression.
1 Like