Question [Q] safelink sim in android phone

hello. has anyone ever been able to get the sim from a SAFE-LINK OBAMA PHONE to work in an unlocked android phone?
my phone is unlocked and i think i should be able to use any gsm sim card in it. but when i put the safelink sim in, it says please put in a valid sim card or something like that.
any help, or answers for this..