Internet sharing issues

[sequoia464]

My 1320 is an unlocked Cricket using a Latin American rom - the phone states it is a "RM-995_lta_lta203". Also references it as Model 1320.1

I'm using this phone currently on Straight Talk.

I'm have tried the few things that I have found to try to enable internet sharing, including the foreign sim trick.

I'm thinking that internet sharing is not going to happen on this phone??

Anyone have any luck with this phone and internet sharing?

Edit; my issues turned out to be exactly as someone suggested to me, Neither Cricket or Straight Talk allow internet sharing, the phone works perfectly with an ATT Go Phone sim.
Still wondering why my 920 with a Rodgers rom worked on both Cricket and Straight Talk as regards to internet sharing.