Pixel 8a talk/text/data not working

[Strategic2831]

• Device: Pixel 8a
• iodéOS Version: 7.9
• Affected App(s): N/A

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Short Description:

Network functions will work briefly, then stop working. Only temporary fix seems to be turning phone off for 15 minutes, but once back on the problem happens again soon after.

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New Issue, Regression, or Feature Request?

New issue

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Additional Information:

Having an issue with the network (Spusu/EE) on my Pixel 8a. It will briefly work after turning off the phone for 15 minutes. Issue started with 7.7 but still have the same problem updating to 7.8 and 7.9.

When turning on the phone after a period of around 15 minutes or more talk and text will work and data will sometimes work. After maybe 5 minutes the data will stop working, and after maybe 15 minutes the talk and text will stop working. At this point the phone will show as ‘emergency calls only’

Things I have tried:
Had the network operator do a reset on their side
Confirmed APN settings
Deleted and added new APN settings
Reset Network settings
Updated phone
Different SIM cards (same issue with O2 and Lebara)
SIM in different phone (works fine on anaother phone)

Any ideas? There seems to be a couple of other data related issues going on with Pixels I can see in recent threads but not sure if they are the same problem.

[rik]

Have you contacted the carrier? Please check the below guide to confirm that IMS and VoLTE report as available (or not) and if they are, then you may need to check your carrier. If they aren’t available, then it may be an APN issue still even though you confirmed the settings.

Non-working mobile data / voice calling guide ("APN" / "VoLTE" issues)

There have been many cases of users not able to use mobile data or reporting that voice calling is not working on their device. Most likely these issues arise from cellular carrier defaults being inaccurate, and thus changes to the SIM and APN (“Access Point Names”) configuration are needed. The defaults for each carrier come from our upstream, LineageOS, but these defaults could be outdated should carriers make changes on their side that the LineageOS developers are not aware of. This guide wi…

[Strategic2831]

Yeah contacted the carrier (spusu) and the did a reset on their side even though eveything seemed fine on the network side.

I will go through that post when I get the chance over the weekend and report back.

@rik

then it may be an APN issue still even though you confirmed the settings

You mean with the settings, or something underlying?

[rik]

@Strategic2831

You mean with the settings, or something underlying?

I mean with a gap between their official / published documentation and their actually “in use” configuration settings. This is why it is helpful if you can reference a working phone’s APN settings to verify all the details.

[Strategic2831]

I was not specific enough in my original post, but when I mentioned that the SIM works fine in another phone I meant in a Pixel 5 running iode 7.9.

Both phone have the APN settings:

Name: spusu

APN: web

Those have always been the spusu APN settings and when I initially called the customer services when the problem started they confirmed them.

Busy weekend so did not have the chance to do the checks you mentioned in the other post but will do them this week.

[rik]

Good luck! Make sure to check the additional things in the guide, maybe it is an ipv4/v6 issue, etc. (so not just the singular APN value).

[Strategic2831]

Working | Pixel 5 | iode 7.9

Not Working | Pixel 8a | iode 7.10b

[rik]

Your “working P5” screenshots show "IMS: Not Registered and “VoLTE” not available. I can’t see how that is working? (or it is working for data only and then maybe 3G calling but can not be working for VoLTE / 4G voice calling?)

The “Denied” message in the non-working Pixel 8a screenshot shows that the carrier is rejecting registration. But again, with VoLTE / IMS not registered in the Pixel 5 either, there has to be other APN settings that are actually correct for 4G / LTE / 5G.

[Strategic2831]

I’m not sure what type of voice calling it is, but all I know is that the Pixel 5 is working in the sense that I use that phone normally. Calls all day in and out of the range of wifi, data no issue when I am out and about. I have been using the Pixel 5 as a hotspot for my Pixel 8a for the last month while I have had this issue.

@rik

there has to be other APN settings that are actually correct for 4G / LTE / 5G.

Can it not just be a bug in the software? It’s not like other people aren’t having a similar problem

[rik]

Since IMS is not registered on either device you may want to try using 3G only, because you clearly can’t use VoLTE / 4G / 5G voice calling without IMS.

But I am quite certain this is a carrier issue. As you see in your screenshot, it states Data raw registration state: DENIED_EM. I don’t know what that means exactly in this case, but it seems specifically that the device may have the correct settings but the carrier network is actively blocking it from registering.