Kyocera Brigadier - flash to cdma network (for example cricket)

[rich hathaway]

set it to nv only then reboot and then write prl, min, mdn and sid and you will have voice and text with no sim card

[smartmazila]

Thank you for fast response. Theoretically agree but in practice is it possible? as I said in first post, I'm looking for rugged smartphone and not bought yet. I want to choose right one from kyocera brigadier and casio commando c811. But I want to be sure that both of them are flashable to other carrier outside US, without ruim/sim. Sorry for too many questions but I won't buy wrong device on my theoretically decision.
there is comment from ebay seller: Everything on the phone is working except for the fact that it won't activate. Upon the initial setup it says "the SIM card may be inserted wrong". I have tried 2 active/working SIM cards and the phone still won't activate. This means the phone has no 4G/3G internet service as well as no 1x calling/texting service. Right now the phone can only be used for wifi.
But if this device is nv flashable, it can work without ruim/sim.

[smartmazila]

Finally I bought casio commando c811 but cant flash to my local cdma carrier I connected it via dfs and flashed but not works