Unable to use mobile data on Sony Xperia 10 III 4.4.0.64

France, Home

  • RED SFR Dual, Xperia 10 III: Working fine (with all possible setting Dual, IP, IPv6), was already working before 4.5.0.19 (SIM1)
  • Free, Dual, Xperia 10 III: Not working (try Dual, IP, IPv6). (SIM2)
Germany, Home

- Vodafone, IPv6/Dual, Xperia 10 III Data is available
- Vodafone, IPv4, Xperia 10 III: Data available

Swtzerland, Roaming 
- Vodafone, IPv6/Dual, Xperia 10 III Data is available
- Vodafone, IPv4, Xperia 10 III: Data available

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4.5.0.19

Finland, Home

  • Elisa, Dual, Xperia 10 III: Data is available

Greece (Spili, Crete), Roaming

  • vodafone GR, Dual, Xperia 10 III: Data is available (but see below)
  • WIND GR / NOVA, Dual, Xperia III: No data (2,5G (edge), no data arrows)

After device connected this ‘NOVA’ then – in the first times, had to reboot the machine for vodafone connection to get data connection working (data arrows with 4G and 2,5G).

I unchecked Select network automatically to avoid changing from vodafone to nova, but it still did change sometimes (it could be that vodafone was not available at all or something)…

Then I went south to Plakias (that was yesterday), at mediterrian – there vodafone and 4G was consistently available. There, to know better, I “forced” nova from connections menu, and as expected,
data connection was lost – but I could not get it back after rebooting anymore (2.5G w/ vodafone and no data arrows)…

… Now I did the “trick #3”, i.e. disable ofono, rm …/ofono/* and reboot… and got vodafone 4G and data arrows back.

Great, I thought, problem soloved… but not so fast – when got back
to Spili, and in a place where vodafone signal was not strong enough (or so I think), phone connected to this ‘WIND GR’ – which
then converted to ‘NOVA’ and data connection lost. Now even reboot did not help, had to the trick #3 again.

Today I have done the trick #3 another 2 times. I am not sure if all of those were necessary. Last I did 1/2 hours ago – after that w/ vodafone I had 2,5G and no arrows – but I just got a message (phone in wifi), but noticed 4G (and after disabling wifi, data arrows)

I’ve tried everything I could imagine to get the data connection up without rebooting, sim2 on sim1 off sim1 on again – which may be quite same as toggling flight mode. I also tried sim2 slot but there was no difference. sailfish utilities network restart and systemctl ofono restart were tried, and so on…

I have quite a few screenshots taken from settings view and from CellMon screens, if these are of any help. I’ve also redirected dmesg outputs to files (10 of those in last few days).

I am soon heading back home (sunday), and there network just works for me. But while I am here I could try to collect more useful data if I’d know what to do…

I had the same problem with Xperia X 10 III
With Orange in Belgium.

  1. First, strangly, Sailfish did not put the correct data connection for the APN, so check that first. I did nt had that problem with My Xperia X. For belgium APN is : mworld.be, name of connection : Internet mobile
  2. I shifted My SIM to SIM 2 slot
  3. for protocole I’ve put: IP
  4. Authentification: PAP (without credential)

I am afraid this will not work if you do it on purpose, just like it does not work washing the car to make it rain.

UPDATE
Looks like it’s “also” provider related, in BELGIUM, I’ve tested the following:

Orange : no mobile data (Limited connection)
Vikings : no mobile data (Limited connection)
Base : mobile date OK! (connected)

I did’nt test the roaming yet.

I had similar problems with my data connection in Switzerland with my 10 III.

to fix it, I had to remove the PIN code of my SIM card.
With a PIN on the SIM I only get a “3.5G” connection without data, without a PIN i get “4G” and data works fine. Also tried roaming in FL/Austria, never had any issues as long as I don’t use a PIN code.

I’m not happy to be forced to use an unsecured SIM card, but at least my phone works.

Denmark, Roaming

  • Vodafone, IPv6/Dual, Xperia 10 III Data is available
  • Vodafone, IPv4, Xperia 10 III: Data available

Sweden, Roaming

  • Vodafone, IPv6/Dual, Xperia 10 III Data is available
  • Vodafone, IPv4, Xperia 10 III: Data available

Finland, Roaming

  • Vodafone, IPv6/Dual, Xperia 10 III Data is available
  • Vodafone, IPv4, Xperia 10 III: Data available

My experiences.
I have XA2 and 10III with SFOS 4.5.0.25 too.

XA2
When security code disabled and PIN enabled, 4G and mobile data works any time.
I haven’t been tested when both are enabled.

10III
When both security code and PIN enabled. 4G and mobile data doesn’t works and connection change to 2.5G. If I connect to a WIFI, the screen shows 4G connection again.
When security code enabled and PIN disabled, 4G and mobile data works well any time.