My S3 Boost to Straight Talk has no mobile network connection, how do I fix this?

A

AC Question

S3 boost to straight talk no mobile network connection

Ive talked to straight talk several times, they are of no assistance. The only time I can access mms/internet is when I'm connected to wifi. I can only receive mms NOT send. When I turn off wifi I can still talk n text, but no internet/mms at all. I've updated PRL, I've updated Profile. Ive factory reset phone twice. No mobile network connection. Any suggestions besides taking a hammer to it?

Thanks!