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O₂ Prepaid SIM suddenly lost signal / no service

  • Juni 28, 2026 6:43 AM UTC
  • 12 Antworten
  • 101 Aufrufe

Hello O₂ Team,

I had an O₂ Germany Prepaid SIM card which suddenly lost signal completely. Before that, it was working normally, but now it shows No Service and cannot connect to any network.

I would like to know whether the SIM card or the number has been deactivated, blocked, suspended, or affected by any roaming restriction.

Could you please check the status of this prepaid number?

I am currently outside Germany, so I cannot easily visit an O₂ shop. If you need the full phone number or SIM details, I can provide them privately.

Thank you.

 

The number ends with 9794

 

Bitte prüft, ob meine Prepaid-SIM deaktiviert, gesperrt oder von einer Auslandssperre betroffen ist.

Lösung von Bumer

Contact the prepaid chat tomorrow, German time.

o2 Prepaid-Chat

 

Use the link with the Edge browser!

Zur Antwort springen

12 Antworten

Bumer
Legende
  • Juni 28, 2026 6:55 AM UTC

Where exactly are you? Select a local network using manual network selection.


  • Autor
  • Besucher:in
  • Juni 28, 2026 7:55 AM UTC

I can't connect to the network anywhere; it always shows no signal. It doesn't work in Germany, Malta, or the UK, and it's still not working now in China. Please check what's wrong with my phone number; is it disabled? I've tried both automatic and manual connection, but it still shows no signal.


Bumer
Legende
  • Juni 28, 2026 7:58 AM UTC

When did you last charge them?


  • Autor
  • Besucher:in
  • Juni 28, 2026 8:02 AM UTC

Last charge,them is  in April,I guess  It is not the charging issue


Bumer
Legende
  • Juni 28, 2026 8:05 AM UTC

What is displayed in the customer portal?


  • Autor
  • Besucher:in
  • Juni 28, 2026 8:12 AM UTC

Aktiv bis 17.04.2027


Bumer
Legende
  • Lösung
  • Juni 28, 2026 8:17 AM UTC

Contact the prepaid chat tomorrow, German time.

o2 Prepaid-Chat

 

Use the link with the Edge browser!


  • Autor
  • Besucher:in
  • Juni 28, 2026 8:18 AM UTC

OK, Got it, Thanks 


o2_Solveig
  • Moderatorin
  • Juli 3, 2026 4:02 PM UTC

Hello ​@frank liu ,
welcome to our o2 Community 😀
Were they able to help you on the helpline? 
Kind regards, 
Solveig 


  • Autor
  • Besucher:in
  • Okt. 2, 2026 8:35 AM UTC

I just requested a new eSIM, can you send me by email, It just show sms method,but I cannot recieve the sms, and how can I change to use email get the eSIM?


o2_Gerrit
  • Moderator
  • Okt. 8, 2026 2:15 PM UTC

Hello ​@frank liu,

could you already contact our prepaid chat to change your eSIM to have it send by email?

Best Regards,

Gerrit


Bumer
Legende
  • Okt. 8, 2026 2:32 PM UTC

​@frank liu 

Why can't you receive text messages?