I got my iPhone 6+ jailbroken iOS 8.1.1 with TaiG tool. everything work just fin until I brought the fone to att store to change out the SIM card because it wont show LTE. After they replace new SIM card and did few time Network reset then my I notice my message app crash everytime I launch it up.
Please help me how to fix it.
BiteSMS is did not work for iOS 8.1.1 yet. is there an alternative text msg app I can use?

thanks