Software Update: FP4.QREL.15.16.1.20260220155828 šŸ“²

Def rebbot after disabling whatever SIM. I would be extremly surprised when the O2 would not offer it. Unlike with a VF or Telekom SIM, updates were as far as I remember never delayed with a O2 SIM

Yeah did the reboot, did not help. I will try deactivate 02 and activate Fraenk. We’ll see….

Is there still progress in this case? Should I be worried? I’m an IT professional and this is getting bad. My last security update is still nov 2025… I don’t know how long I can postpone other actions. Should I put on an alternative like /e/os? Because - sadly - I really need my Microsoft apps…. Even support is not able to give me a solution. Fairphone, I was a big fan, but this is making me sad….

Did you try a different SIM? And also with your SIM again?
In former times, I made the experience that without a known carrier, no updates at all where found.

I set my phone to factory settings, kept it a whole day without the sim, restarted a dozen of times. I don’t have another SIM available….

Actually the OS doesn’t prompt you to reboot, at least not on my FP4. (And it makes sense, because most of the time you would be deactivating a SIM for connection/carrier reasons, not to force the OS to poll updates…)

Still no update available for Klarmobil/Germany. I’m on 15.15.2 incl. Nov 25 Security Updates, Single SIM

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But you actively searched for it and did not just wait for it to show up?

Hello
Would you consider checking with any eSIM?

Same for me. Ja mobil (congstar) / Germany. 15.16.1 doesn’t show up.

I manually checked for the update and it was available. Simyo at KPN, Netherlands.

Yes, I did. I also tried after disabling the SIM Card.

Unfortunately I don’t have ESims available to Test with

Hello
That was my suggestion to @Hanne but obviously you can also consider that.
The eSIMs I used when travelling abroad I purchased for a few euro.
I am not saying it’s ok to expect a user to spend extra money on the update but perhaps you could get a deal which you will find attractive enough to consider.

Hello,

Also a Proximus FP 4 user and still no update to Android 15. I’m on security patch from november 2025

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Neither in Germany on Deutsche Telekom, Prepayed eSIM.

Edit: got the update yesterday (28-April-2026)

No update yet on EE UK. My sister is on O2 and it arrived a week ago.

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Sadly, loose of USB-connectivity still persists. Also reboot function leads to full shut off. Restart only by long pressing the start button.

Not for me.

And thats a common issue reported to support?

both occurred with 15.15.2 and were reported as I know.