hi, i m from india and owner of iphone 4 white 8gb, yesterday i got my iphone 5s gold 16gb which was purchased online from amazon and it has 1 year apple india warranty, when i opened the iphone box which was well sealed but i saw two little black spots on white bands of iphone 5s on both sides but those were not noticeable, when i switched on my iphone 5s then i noticed that screen is dull and its in yellowish tone, i know its in auto brightness mode which comes default by apple, i couldnt activate my iphone because i dont have nano sim right now but will activate very soon, one more thing i noticed that the sim tray of my iphone 5s doesnt have imei and serial number printed on back side but my iphone 4 sim tray has imei and serial number written on back side, only imei is printed on back plate of iphone 5s, my question is that i got brand new factory piece from apple or i got some refurbished or replacement piece well packed in box. in iphone 5s box everything is shining like new product, please help me in this, thanks.