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My Sony Xperia XA2 cannot connect to mobile network.

asked 2019-07-06 21:29:51 +0300

bade866o gravatar image

I bought an Xperia XA2 and installed Sailfish for Xperia beta All went well except that, most of the time, I cannot connect to the mobile network (Cricket in USA). It look unavailable but at some point, it briefly connected by itself and then it disconnected again. I know that because I received tow text messages from the carrier. I double checked with the carrier and I do not have to register the IMEI with them. Later, I read some threads and somebody suggested I go in utilities and restart the network, which I did, and indeed it worked, once. Mobile network worked for a while, I was able to make calls, but some Android applications (Wire, Protonmail) did not connect to internet although other Android applications (fennec, redreader) connected to internet well. So I decided to restart the phone again and from that point I was not able to connect to the mobile network no matter how many times I restarted the network from utilities. I have tried to select the mobile network manually and the phone displayed six options "cricket", after a slow process, and none of them worked. Does anybody have any suggestion?

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Did you make sure that the mobile data and connections worked fine on stock rom Android installed on your XA2? If you have dual sim XA2 try to enable and disable second sim, sometimes that helps if the whole connection element is greyed out as not working

Sakke ( 2019-07-06 21:45:53 +0300 )edit

No, never crossed my mind to try it on Android and I guess now it is too late. I have a single sim phone. The connection element is indeed greyed out.

bade866o ( 2019-07-06 22:31:12 +0300 )edit

Have you ever tried a SIM card from another carrier? My O2 didn't work, but Vodafone perfect.

Some SIM cards are too thin to have good contact with the phone. Put a piece of paper together with the card to improve the contact. This helps in my case.

In there are still problems with Android apps. SFOS could do it better. We hope for SFOS 3.1.

4carlos ( 2019-07-07 07:17:40 +0300 )edit

You might want to try going into flight mode for a short period of time and leave it again. On my XA2, if not connecting to mobile network, that usually fixes the issue.

What might be worth mentioning is, which vendor binary version did you use?

Kobold ( 2019-07-07 10:08:46 +0300 )edit

I have the (Hossa) vendor binary version. I have tried both the paper and flight mode tricks and they did not help. It seems that phone recognizes the sim but option is disabled. In the "Cellular network" screen at the bottom, phone spent some time registering to the network and then it went back to searching again. I guess, the best option is to wait for the 3.1 version.

bade866o ( 2019-07-07 15:29:13 +0300 )edit

2 Answers

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answered 2019-07-08 16:03:58 +0300

DrYak gravatar image

updated 2019-07-08 16:06:38 +0300

(Not definitive solution but a work around the problem)

When unable to connect (or much more rarely: when unable to receive SMS), you need to force restarting the Cell modem and

for Xperia XA2 Dual smartphone :

Procedure :

  • go in Settings app.
  • in Connectivity section pick the SIM cards settings tool
  • turn on the SIM card 2 (the empty slot)
  • turn off the SIM card 1 (the slot where your service provider card is in)
  • wait 1 sec (you'll probably get a message telling you that no usable SIM currently selected)
  • turn on the SIM card 1
  • turn off the SIM card 2
  • wait 1 sec (by now, the SIM card 1 should tell you the service provider it's connected too)
  • peek/look at the status bar: you should an active data connection ("4G" or "3G" shown)

for single SIM phones (Xperia X, XA2 and Jolla 1) :

Diffent things to try :

  • Turn Airplain mode "on" then "off".
  • If you have sailfish utilities installed, in settings -> sailfish utilities, try the Restart Network button
  • On the command line try (as root, so devel-su) :

    systemctl restart ofono

  • Turn off phone, remove SIM card, wait 1-2 sec, put everything back in and restart.
  • When none of the above works (usually when triggered by roaming) : settings -> mobile networks -> Select network automatically -> try logging into/off networks manually. Eventually your home network will accept you.

Android :

Officials at Jolla have reported that installing Android, and using Android to fetch any upgrade to the cell modem's firmware, and then reflash back to Sailfish seem to aleviate the problem.

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That's what I called "Voodoo". My XA2 has never been set up on Android and got Sailfish immediately. The Jolla solution sounds more like embarrassment because Jolla doesn't find the mistake.

4carlos ( 2019-07-08 17:45:26 +0300 )edit

OK, mine was a hardware problem. I reverted to Android and I got the same issue, I could not connect to mobile network. Consider this topic closed. Thanks everyone.

bade866o ( 2019-07-09 21:13:18 +0300 )edit

the first advice for xperia xa2 dual works. I have this problem, the status bar disappears, when then phone is in power saving mode (for example after restarting), there is no status bar on the screen. But also no network, and I must charge the phone to some capacity, remove from charger and then the status bar is on. But the mobile network is still not login in - even 4G or 3G. It seems, that you can restart or turn off the phone many times and nothing happens, when the status bar dissapear. Also changing airplane mode or switching 3g to 4G and vice versa is useless. I use patches "no home carousel", "hide Word suggestions" and "wider spacebar". No I charge the phone to full capacity, restart without charging cable, status bar is on, and then I try to switch SIM cards on/off. It works, but I hope this bug will be removed. I turn off the power saving mode and wait for next battery low time.

kriziak ( 2019-07-10 13:42:19 +0300 )edit

@4carlos - Recommendation from Jolla --> try mobile services with android before switching to Sailfish OS ;-)

mViper ( 2019-07-30 15:58:21 +0300 )edit

@mViper : I know, Jolla suggested that. Sometimes it helps, sometimes not. That's a helpless recommendation from Jolla's side. Meanwhile, I have also tried a SIM card from Deutsche Telekom. It also works without problem.

For me, it has more to do with the combination of the networks of o2 and Telefónica. I guess that's not perfect.

4carlos ( 2019-07-31 07:21:25 +0300 )edit

answered 2019-07-25 11:39:22 +0300

I have this same problem too. My XA2 dual sim phone is also rebooting itself quite often after 3.1 update. When I turn of the Android support, mobile connection is working immediately. And it keeps working. Rebooting problem is also gone. If I want to use Android apps and turn the Android support on, problems will start again.

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Asked: 2019-07-06 21:29:51 +0300

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Last updated: Jul 25 '19