Firmware is ORIGINAL FACTORY, from their support.
As I wrote earlier, if device powers on, just while flashing don't flash preloader.
(or simply remove it from firmware folder.)
Factory flasher for mediate devices is called
SPFlashTools,
and is sufficient for flashing this device, you don't need any box.
p.s. This is not box support section, and we don't allow box logs here.
p.s.2 Read this thread also, if you have problems flashing your device:
http://forum.gsmhosting.com/vbb/f317...first-1893215/
Post #2 have the factory update tool.
b.r.
Alex