It means that the Sim card is blocked by the network provider and it cannot be used
Because of misuse of the Sim card will be block by the service provider.
To block the SIM card, a person must call the company's customer service line. They will ask identifying questions, and then they will block the SIM card.
if you mean unblock it with the PUK code, no you should just ring up your service provider and they will give you the code. if you have had the sim blocked on purpose (if it was stolen or lost) you should just ring the phone company and they'll unblock it for free
If it is PUK block or sim block you need to call nextel, if you blocked it by putting in a different sim from another company, then your phone is fried.
You can - but that will also be blocked. The way to unblock your original SIM - is to contact your service provider. Depending on whether this is the first time, they may charge you to unblock it. It is the phone itself that is blocked - not the SIM card.
It's not possible. You can only block your own sim card by contacting Vodafone and reporting it lost or stolen.
Get a new SIM card. Contact the network operator and provide the PUK code (12 digits?).
You can block the sim of any person directly. You must tel the reason to the company of that mobile phone sim cards as why you want to block someone's sim card. Otherwise it is not possible.
You can block a Blackberry without a sim card,using the serial number.
yes
SIM means Subscriber Identity Module.
You do not unlock a Sim card; you unlock the phone To do this without modding the phone or getting an unlock code, you can go and purchase a Sim card add-on such as Turbosim or Hypersim.