The SMS sending problem is solved by downgrading your networksettings to 3G.
Cannot confirm this. Receiving SMS works, but sending SMS is not working. Provider 1&1 Germany (5G)
Text messaging seems to work, but it takes a long time to send. MMs KO in/out. (fr)
In my case rebooting and only rebooting worked. Currently, SMS are working. Next time I hope to be able to do some debugging.
Same here. Two days ago sent SMS, all fine. Yesterday nothing worked. VoLTE is off all the time, changed from 4G to 3G and 2G; still nothing. After restarts sending SMS worked again.
Same issue with 1&1 (Germany). Reboot not done so far.
SMS sending on first SIM (Telia Finland) is not working but MMS is working. On the second SIM (Vodafone Germany) both SMS and MMS are not working but Iām currently at roaming (Elisa Finland). I tried to switch from 4G (VoLTE) back to 2G but it didnāt help, still fails to send SMS.
OS update did not help. Still cannot send.
Only after restart working. In some point sendig SMS stops working.
On a jolla C2 with 5.0.0.62, Android App Support workaround did work for me.
Itās not related with 2G/3G/4G/VoLTE.
I rebooted multiple times my phone with those configurations, to no avail.
But deactivating auto start for Android Support did the trick : I could send the SMS I wrote.
Then, I could activate Android App Support, SMS still were working.
I guess itās an issue with phone initialization orderingā¦
Hi, same problem on my C2.
Ten day ago itās working. Today : no. I tried 2G, VOLTE, turn off Android supportā¦
I send via CLI :
devel-su -p dbus-send --system --print-reply --dest=org.ofono /ril_0 org.ofono.MessageManager.SendMessage string:"+336xxxxxxxx" string:"Blabla"
and maybe itās work ?
ethod return time=1760074061.749704 sender=:1.7 -> destination=:1.197 serial=1110 reply_serial=2
object path "/ril_0/message_1CB438F3A6B14A29BAB7F0A9C179D0821D2E7BEF"
How to see log ?
Maybe in journalctl 
oct. 10 07:36:44 JollaC2 jolla-messages[9497]: [D] unknown:0 - void ConversationChannel::sendMessage(const MessagePartList&, int, bool) Buffering message until channel is ready for: "+336XXXXXXXX"
oct. 10 07:36:44 JollaC2 jolla-messages[9497]: [D] unknown:0 - void ConversationChannel::channelRequestCreated(const ChannelRequestPtr&)
oct. 10 07:36:44 JollaC2 mission-control[2586]: Channel request /org/freedesktop/Telepathy/ChannelDispatcher/Request50 failed, error: Handler no longer available
oct. 10 07:36:44 JollaC2 jolla-messages[9497]: [D] unknown:0 - void ConversationChannel::reportPendingFailed() Failed sending 1 buffered messages to: "+33634245104"
oct. 10 07:36:44 JollaC2 jolla-messages[9497]: [D] unknown:0 - void ConversationChannel::channelRequestFailed(const QString&, const QString&) "org.freedesktop.Telepathy.Error.NotAvailable" "Handler no longer available"
? Note, phone is freshly boot (~5 min)
I kill āmission-controlā task, and sending SMS works.
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I noticed this week that sending SMS is not working any more. I use a Experia 10 II and tried all of the above mentioned suggestion. None is working for me.
Probably a stupid question, but did you also try rebooting your phone?
This used to help when I had issues in the past but not since maybe the last update. Currently I am on 5.0.0.68.
Maybe you can try this fix.
Thanks for the link but ofono is running as expected. So this does not help either. 
I have a second SIM card in my phone. Sending SMS also fails through the second provider.
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Did you check leftover files from step 3 anyway?
Hi Filip,
thanks for your hint. The tx_queue folder were all empty and the command from step 3 revealed nothing but there were several folders starting with 26ā¦ I moved all these folders to a temp directory and know sending SMS works again. I hope this is more than a work around.
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Hello. Sending SMS fail again today. Killing mission-control repair.
the next time, Iāll try āls -lR /var/lib/ofono/*/tx_queue/*ā to see if the problem is the same that filip.k with ofono.
Note that this āleftoverā issue was identified and fixed several releases ago.