slickdeals上面看到一個有趣的討論,就是說舊款iPhone 3G底下的塑膠部分有的會有hairline cracks,如果Apple Store還有舊款3G版的話就會換給你3G版,如果沒有就會換給你3Gs的版本 (refurbished),不過也有人說不一定會換的到,因為這些手機大多已經過保固了,但還是有人成功,可以看看下面這段
This has been discussed before on other sites, yes, there is a known issue with the cracking on the dock connector portion of the backing of the 3g. Yes, Apple has authorized a service swap/exchange
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