芝麻信用评估
芝麻信用评分是合法独立的信用评估及信用管理机构，授权后得到分数越高，代表信用越好
看评论，说520ATT的是必须使用6个月以上ATT服务，521Tmobile是unlockable right out of the box....The difference between this phone and the T-Mo branded one (521) besides the $10-$20 price difference is that that phone is unlockable right out of the box, with this one you will have to wait for after at least six months of continuous service on AT&T. This may be a deal breaker for some but not for me. Oh and the 521 is slightly longer.
2013-12-20
