https://developers.google.com/android/nexus/images
目前旧机种已经可以下载的有
Factory Images "hammerhead" for Nexus 5 (GSM/LTE)
https://dl.google.com/dl/android/aosp/hammerhead-lrx21o-factory-01315e08.tgz
Factory Images "razor" for Nexus 7 [2013] (Wi-Fi)
https://dl.google.com/dl/android/aosp/razor-lrx21p-factory-ba55c6ab.tgz
Factory Images "razorg" for Nexus 7 [2013] (Mobile)
【目前还没有】
Factory Images "mantaray" for Nexus 10
https://dl.google.com/dl/android/aosp/mantaray-lrx21p-factory-ad2499ea.tgz
Factory Images "occam" for Nexus 4
https://dl.google.com/dl/android/aosp/occam-lrx21t-factory-51cee750.tgz
Factory Images "nakasi" for Nexus 7 (Wi-Fi)
https://dl.google.com/dl/android/aosp/nakasi-lrx21p-factory-93daa4d3.tgz
Factory Images "nakasig" for Nexus 7 (Mobile)
【目前还没有】
我自己试过，Nexus 4、Nexus 7、Nexus 7 2013都成功刷过去
另外试过Nexus root toolkit可以把neuxs 4给root (n7还没试)
可惜目前xposed framework似乎还不支援棒棒糖...
还有呒虾米输入法不能输入中文 〒△〒
我从L-preview的时候发现呒虾米有问题就回报官网了，但现在还没解决...