Unlocked iPhone searching for signal... uh oh

i got phone brother jailbroken , unlocked don't know it. has cydia on it, , called sam prefs.

last night charged it, , when woke said springboard had crashed , running in safe mode needed restart it. did. now, it's searching signal , don't think it's going find it.

when plugged it, said in itunes sim card isn't recognized. mean have on again?

 

eject sim , reinsert

 

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