Secret dialing codes

[Dan Wesbut]

My phone doesn't respond to any of the secret dialing codes. Any idea why?
I have a Verizon galaxy s3

 

[Rukbat]

Try *#06# Almost all phones respond to that with the IMEI code. If that doesn't work either you're doing something wrong or the ROM may have to be reflashed.

 

[Dan Wesbut]

Try *#06# Almost all phones respond to that with the IMEI code. If that doesn't work either you're doing something wrong or the ROM may have to be reflashed.

I'm not doing it wrong I'm just dialing that numbers in the dialer but nothing happens, I didn't flash to a new rom but my phone is rooted