Much of ZTE's MWC 2013 focus was its desire to go from white label to global brand name. And from the looks of these leaked shots, the Chinese OEM's taking that goal seriously, purportedly prepping a new handset for Sprint. Going by the rumored name "Quantum," the handset falls below flagship status, allegedly running Android Jelly Bean and bearing a Snapdragon S4 processor, 5-inch 720p display, 1GB RAM and a 13-megapixel rear camera housed in an outsized circular module. There's no visible carrier branding anywhere on the device to confirm its possible Sprint LTE destiny -- only a logo in the notification pane and an anonymous tip, as reported to Android Police, pegs it for that. If this leak does indeed pan out, then that's good news for Sprint subs looking for more hardware choice, giant screens and 4G. And if not, well, no one will know the difference. Check out the source for additional shots.