Some blackberry mobile phones, especially the ones used in the U.S and UK are customised, either by verizon, AT&T or some others. When brought to Nigeria, they'd be showing "activation required" at the network display region of the bbm, though it doesn't affect the way the phone works in any way. There are 2 steps below you could follow to remove it permanently without stressing yourself and paying a dime to any phone technician.

Firstly, Go to options, click on advanced options, click on Host Routing Tables, click to enter. DO NOT click on any listing.
Press the Option key, and select register now. You will get a verification message. Then go to email settings and send service books. You will get another email per account. Do a battery pull and see if the problem is resolved. Pull the battery while the device is ON. Replace after a minute, Let the device reboot and see if the problem is fixed. Note: when doing the hard reset, No data will be lost. This works for some few blackberries.

If the above doesn't work, this one will. You have to access the CDMA Setting Menu on your BlackBerry by clicking the Green dial key (like you want to make a call) and enter ##000000, then click the green dial key. The CDMA setting edit screen would appear. Edit and put your phone number in the intial field... "Mobile Directory Number" and Save. That should take care of it.. but again, not being currently within the range of network signal may cause this not to work. Hope this helps someone

pls my blackberry 9930 sprint is not connecting and i've tried all that am asked to do even called the service center of my network but is still not working pls can i get some help because is just piecing me off. thabks

how do i get the code to activate my phone because the one am using ##000000 or ##111111 is not valid on my phone

the second method works perfectly for me. Thank buddy

Thanks WORKS.

All the steps been given did not work on my phone, eg ##000000 or ##111111 both the two did not work on my phone pls do help me thank you.