Can jailbreak release my iphone? ios 10.2.1

I have a doubt my iphone 6 ios 10.2.1 is under the company setar, however is already out of the contract but when I try to put another sim sends me to the activation of the phone, I place my icloud and everything perfect peo then says "yes Invalid "but in the upper part I see that the signal and network LTE recognize me .. open some way to skip that activation or if I do the jailbreak I accept the activation?