升级的1.1.1后发现APN设置后一旦iphone重启，设置就会消失掉，找到了解决办法。具体如下：
1、使用winscp从手机下载/var/root/Library/Preferences/com.apple.carrier.plist 文件
2、用写字板打开这个文件
3、在文件中查找ANP的设置（可以使用搜索APN方便的找到）
4、添加APN设置(红色字），我用的是CMNET,所以改为CMNET，如果是用CMWAP的请自行修改
<dict>
<key>apn</key>
<string>CMNET</string>
<key>password</key>
<string></string>
<key>username</key>
<string></string>
</dict>
<dict>
<key>apn</key>
<string>CMNET</string>
<key>password</key>
<string></string>
<key>username</key>
<string></string>
5、修改完成保存，然后上传覆盖原文件。
6、也可以用winscp直接修改保存。
7、建议大家在修改前先备份原文件。
我已经完成，测试确实有效。呵呵
原始的文档如下：
The solution to this for me was to SSH/SCP into the iPhone and edit the/var/root/Library/Preferences/com.apple.carrier.plist file. This fileshould already be in XML format, and shouldn't need to be converted....Just look for the section that specifies the APN settings and fill inthe blanks appropriately, for example:
Code:
<array>
<dict>
<key>apn</key>
<string>internet.com</string>
<key>password</key>
<string>wap</string>
<key>username</key>
<string>wapuser1</string>
</dict>
<dict>
<key>apn</key>
<string>internet.com</string>
<key>password</key>
<string>wap</string>
<key>username</key>
<string>wapuser1</string>
</dict>
</array>
(The above settings are for Rogers Wireless -- obviously if you're onanother carrier you will need to enter the APN settings appropriate foryour carrier).
1、使用winscp从手机下载/var/root/Library/Preferences/com.apple.carrier.plist 文件
2、用写字板打开这个文件
3、在文件中查找ANP的设置（可以使用搜索APN方便的找到）
4、添加APN设置(红色字），我用的是CMNET,所以改为CMNET，如果是用CMWAP的请自行修改
<dict>
<key>apn</key>
<string>CMNET</string>
<key>password</key>
<string></string>
<key>username</key>
<string></string>
</dict>
<dict>
<key>apn</key>
<string>CMNET</string>
<key>password</key>
<string></string>
<key>username</key>
<string></string>
5、修改完成保存，然后上传覆盖原文件。
6、也可以用winscp直接修改保存。
7、建议大家在修改前先备份原文件。
我已经完成，测试确实有效。呵呵
原始的文档如下：
The solution to this for me was to SSH/SCP into the iPhone and edit the/var/root/Library/Preferences/com.apple.carrier.plist file. This fileshould already be in XML format, and shouldn't need to be converted....Just look for the section that specifies the APN settings and fill inthe blanks appropriately, for example:
Code:
<array>
<dict>
<key>apn</key>
<string>internet.com</string>
<key>password</key>
<string>wap</string>
<key>username</key>
<string>wapuser1</string>
</dict>
<dict>
<key>apn</key>
<string>internet.com</string>
<key>password</key>
<string>wap</string>
<key>username</key>
<string>wapuser1</string>
</dict>
</array>
(The above settings are for Rogers Wireless -- obviously if you're onanother carrier you will need to enter the APN settings appropriate foryour carrier).