Quote Originally Posted by radec View Post
So basically to reiterate, my experience is, you wont have any lucking moving your sprint sim between two Sprint branded devices...without calling sprint or connectall and registering the new devices imei on your account. But it does work fine to use your sim in a modem flashed with generic firmware. Just don't go calling sprint or connectall and asking about it, it's not supported.
I've had experience doing both and what @radec says is exactly how it worked (or in the case of trying to use in a different Sprint hotspot, did NOT work) for me.