This may have to do with calling the Sprint and making sure that the SIM you are using can be used on a BIS plan. Because usually the activation of BBs has to do with the service provider. That's why sometimes there is an activation fee... You probably have to pay an activation fee around $20-$30 or so to register the phone with the network.
enter ##000000 and change the first line with the number you are using now..or with a local number of the country you are in.., press menu and then save, the phone will restart. This will only remove the "actication required" message and now it will appear the carrier name on the top..You are welcome
If its from Verizon, type ##000000 and save your number in the first line. Phone will reset and your activation required message will go. If its from Sprint, you need to buy the msl code. Typically costs around $20. In case you have bought the phone from ebay, you may contact the seller and get the unlock code from them.
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