您好 !
您的Samsung Galaxy Note2 N7100,
官方已推送了 Android os 442
要更新系统, 如果您的手机没有 Root 及 没有刷第3方,
可以直接FOTA升级
若已刷第3方, 请用刷机方法升级系统
```````````````````````````````````````````````````````````````````````````````````````````````
建议备份数据, 充满电後, 按下列步骤进行操作, 点选 :
设定 > 系统 > 関於设备 > 系统更新
希望这能帮到你 !!