Help Swithched SIMs and no data now

[Self Made]

I just switched from T-Mobile to Cricket, activating my new SIM online and inserting it in my Nexus 4. I tested calling and voicemail and they worked fine. But I have no cellular data. When I'm on a WiFi network Cricket shows bars. When I'm not on a WiFi network it shows bars but with an exclamation point in them. And if I try to load a web page it will tell me I have no internet connection. Any idea what's going on? I've searched through the settings to see if I screwed up anything, but I can't find it. Data roaming is off, but that was always off.

 

[lion7718]

Remove you SIM again & shoot some canned air on it or just wipe off the gold area with a cloth.

 

[Self Made]

Remove you SIM again & shoot some canned air on it or just wipe off the gold area with a cloth.

I wiped it off with alcohol but it didn't make a difference.
I found that Cricket has a phone number: 611 or 1-800-274-2538.

 

[Self Made]

Solution found. I had to manually input APN info. See solution here.