很多朋友已经升级到beta4了，但是如果我之前没有升级到7，通用信息里面没有升级消息，无法直接用手机升级到iOS7 Beta4怎么办呢？其实我们可以自己下载对应的固件用电脑的itunes直接升级。
2、苹果5 Model A1428的固件下载，下面我把mega的服务器和百度网盘的下载资源分享给大家。iPhon髫潋啜缅e 5 (Model A1429) https://mega.co.nz/#!kQlQ0LAZ!Cc71fjwciH_ocEALn5Pa7naYDO5LHLxV-MPsxtXSXpgiPhone 5 (Model A1429) http://pan.baidu.com/share/link?shareid=1040181382&uk=3439710816密码:1zlu
4、苹果4 GSM Rev A的固件下载，下面我把mega的服务器和百度网盘的下载资源分享给大家。iPhone 4 (GSM Rev A (8GB) https://mega.co.nz/#!AJ0QABAC!SNoihyZ3WAnc-d2_8g4SJjOoAjY6K_FmlcwxDcKfxE0iPhone 4 (GSM Rev A) http://pan.baidu.com/share/link?shareid=1052125867&uk=3439710816密码:kh5m
6、其他型号的下载地址：（根据自己的型号下载，不懂的问我，别乱下载固件强行升级）iPod touch (5th generation) https://mega.co.nz/#!ddFCCDpZ!almd9hqaachhvSiA_4XBdhIltogNuzlpEDuys8_tGm4iPad 3 Wi-Fi https://mega.co.nz/#!oZNTFLZR!CjKAKGdTLFFBd-pvuKkkVEH2gchUZC9aEc4nu47yenAiPad 3 Wi-Fi + Cellular (model for ATT) https://mega.co.nz/#!QR8kQZKR!QF5SW1PHm0nqVivWk0Q-amTCkHw3NAKspP-FnOIpUa4iPad 2 Wi-Fi https://mega.co.nz/#!RQUWGIJa!KiaaSw0e1hMkmlMozhBR0WkW5NJtPmuuUKLxHfT0Wdk
