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PUK number not working

  • Okt. 18, 2026 9:06 AM UTC
  • 4 Antworten
  • 50 Aufrufe
Besucher:in

I have bought O2 sim card (prepaid) couple of weeks ago. The SIM card is working fine, i.e. calls, internet and messages. But when I am trying to register to the O2 app using my phone number, the app is showing that the PUK number is invalid. I entered the code exactly as per the SIM packaging and even tried PUK2. Note that even though the PUK is not working, the PIN given in the packaging is working perfectly fine. I am currently unable to view remaining balance.

 

Edit o2_Kathi 04.11.26 Moved to the section English o2 Community

    4 Antworten

    Bumer
    Legende
    • BumerLegende
    • Okt. 18, 2026 10:21 AM UTC

    Where exactly was the SIM card purchased? This is because the login is established as early as the identification process!

    Besucher:in
    • Aswin Raj
    • Autor
    • Besucher:in
    • Okt. 18, 2026 4:44 PM UTC

    The SIM was purchased from an o2 store in Altenessener Str. How to solve this issue?

    Bumer
    Legende
    • BumerLegende
    • Okt. 20, 2026 8:55 AM UTC

    by contacting the shop and completing the registration for *Mein o2* there!

    o2_Kathi
    • o2_KathiModeratorin
    • Moderatorin
    • Nov. 4, 2026 12:28 PM UTC

    Hello ​@Aswin Raj 😊
    Welcome to our community.
    It's great that Bumer was able to help you out so quickly. Have you been back to the store since then so you could register for your Mein o2 account with the help of the staff there?

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