Big, if you buy an Apple mobile phone, do not buy this modified machine, because the modified machine needs to remove all the accessories inside the new case, this time can not guarantee that the motherboard has not been repaired, and the modified case is not the real original machine, but a small factory produced in China. Whether it is in size or in color difference, it is different from the original, and even the mobile phone case can not be common with the real machine, and a special mobile phone case is required.