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October 14, 2025

SIM Activation

  • October 14, 2025
  • 21 comentários
  • 360 visualizações

I have a new SIM card with a DATA only contract.

How do I activate the SIM?

    21 Comentários

    João H.
    Gestor da comunidade
    October 15, 2025

    Hello ​@PAUL311,

    Thank you for your message. Could you please confirm whether your data plan is prepaid or postpaid? The activation process may differ depending on the type of service.

    Once we have this information, we’ll be happy to guide you through the correct activation steps.

    Kind regards

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    PAUL311Autor
    Byte
    October 15, 2025

    Hi. 
    It's a post paid account.

     

    I am going to use it in a 5G router.

     

    I've tried putting the sim in a phone, but no success.

     

    Regards 

    João H.
    Gestor da comunidade
    October 15, 2025

    Hello ​@PAUL311,

    Thank you for your feedback. 

    Since its a post paid, the card is already active as its delivered.

    When you tried it in a smartphone, did it request a pin code? Did the card established a 4G connection? 

    Thank you 

    Ajude a comunidade a encontrar informação relevante. Marque como "Melhor Resposta" e faça "Like" nos melhores comentários. Siga os perfis da moderação, através da opção "Seguir", para estar sempre a par das ultimas novidades.
    Kilobyte
    April 12, 2026

    I have the same problem - new data only SIM, post paid.  I have put it in iPhone but does not work as no internet access.  I have a full NOS signal but it seems card it not activated.  Do I need to activate it somehow?  Thank you.

    Rafaela F.
    Gestor da comunidade
    April 12, 2026

    Good afternoon ​@Rebecca Hunt,

    We’re happy to help. For data-only SIM cards, manual activation by the customer is not required. Have you tried the mobile data SIM card in another device?

    Thank you

    Ajude a comunidade a encontrar informação relevante. Marque como "Melhor Resposta" e faça "Like" nos melhores comentários. Siga os perfis da moderação, através da opção "Seguir", para estar sempre a par das últimas novidades.
    Kilobyte
    April 12, 2026

    Thanks for your quick reply, I have tried the SIM in a wifi router, plus an iphone XR and iphone 14 - both show the following message:-

    “Could not activate mobile data network

    PDP authentication failure”

    Hope you can help!, thanks ☺️ 

    Rafaela F.
    Gestor da comunidade
    April 12, 2026

    Good afternoon, ​@Rebecca Hunt 

    Thank you for the details; this information is very helpful.😊

    The message “PDP authentication failure” indicates that the SIM card is unable to authenticate the data connection on the network, which is usually related to the APN settings or the service activation status.

    Given that you’ve already tested it on several devices, everything points to the issue being related to the SIM card or service.

    Please send us a private message to the ​@Fórum profile with your mobile internet SIM card number so we can verify that the service is properly active and help you resolve this as quickly as possible.

    Thank you

    Ajude a comunidade a encontrar informação relevante. Marque como "Melhor Resposta" e faça "Like" nos melhores comentários. Siga os perfis da moderação, através da opção "Seguir", para estar sempre a par das últimas novidades.
    Kilobyte
    July 24, 2026

    I just received a data only prepaid SIM and tried to activate it over the phone. I spoke to three different reps none of them helped much , one even told me to phone woo 😅.  How do I activate this?

    Rafaela F.
    Gestor da comunidade
    July 26, 2026

    Hello ​@Brcanuck,

    We appreciate your message and are here to help you.

    To do so, please send us a private message to the ​@Fórum profile with the mobile phone number in question.

    Thank you

    Ajude a comunidade a encontrar informação relevante. Marque como "Melhor Resposta" e faça "Like" nos melhores comentários. Siga os perfis da moderação, através da opção "Seguir", para estar sempre a par das últimas novidades.
    Kilobyte
    July 27, 2026

    A few days ago, I purchased a SIM card from NOS company. After inserting it into my phone, it showed no service and there were no signal indicators.