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Blau.de: SIM card blocked – how to

  • Oct 08, 2025
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You have moved your SIM card from blau.de or lost, you can simply lock. What exactly you need to do this, we will show you here.

SIM card Blau.de block – you have to do

  1. First log in with your data Blau.de a.
  2. After a successful Login you will see your current and activated SIM card.
  3. With a click on "lock SIM card" in the tab "SIM-card" can lock and manage your SIM card with just one click.
  4. Alternatively, you can use your SIM card by calling customer service Blau.de block.
  5. After you have locked the SIM card, you can order in the customer area of blau.de under the entry "replacement card" means a new SIM card. This will cost 9,98 euros and should arrive after one to two business days. After receiving it, you can use them directly.
Blue.EN: lock SIM card can
In the next practical tip we can tell you what you can do, if the data volume at Blau.de used up is.

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