Sorry if this is in wrong area. I received a Galaxy S3 SCH-S968C its straight talk and runs off Verizon towers but it was soft bricked and i couldn't find firmware anywhere so i installed d2vzm firmware after reading i could and it worked. Now the prob is i cant get it to accept straight talk Sims so my question is if i get a Verizon Sim card such as 4glte card could i just go ahead and use the phone on Verizon network data and all? Model number now shows SCH-I535 and im running 4.3 also when i try to make a call i get a vocal Verizon error message. Any help is greatly appreciated thank you.