Help APN can't be added

[Another Joe]

Full disclosure - I know very little about what makes these things tick.

I'm trying to get my Merge to work on Straight Talk. After inputting the APN I proceeded to delete the other APNs (as ST instructs). It's possible I changed a setting in the meantime, but now all APNs are gone and it no longer allows me to add a new one. When I click "Menu" with the APN screen open, I just get the short vibration with no changes on the screen.

Any advice would be appreciated.

Thanks
Joe

 

[Another Joe]

Couldn't figure it out or get answers, so did hard restart. Supposedly it was unlocked before I started though.... now it's not. Just ordered unlock codes... Straight Talk support wasn't much help, other than telling me it wouldn't work.