Are the specifications real as written on the screen, I mean MT6577 1,2 GHz, 1GB RAM, 16 GB ROM, 8MPx and 1,3 MPx cameras? and does the GPS work properly? Is the phone in stock and shippable as soon as I place the order? Which upgrade can be done, Android 4.1 ?!? Which is the manufacturer? Thanks in advance for your kind reply reply:specification is ture.gps work by satalites.have it in stock....