How to downgrade iOS 6.0 to 5.1 on ipad?

Found some functions are not working after upgrade to 6.0. (maps etc.). Want to go back. Thanks

所有跟帖： 

• no way -用戶名被占用了- ♂ (0 bytes) () 10/05/2012 postreply 10:00:50

• 謝用戶 -nmnm- ♀ (0 bytes) () 10/05/2012 postreply 13:24:52

• 我和你在一條船上，航行在詛咒唾沫堆成的大河裏，哈哈 -用戶名被占用了- ♂ (0 bytes) () 10/05/2012 postreply 15:19:46

• 加一口唾沫，把那船給弄沉 -滋鄂- ♂ (0 bytes) () 10/05/2012 postreply 16:08:46

• try this -lanyu- ♀ (96 bytes) () 10/05/2012 postreply 16:08:08

• it is IOS 6 beta 1. so might not work -用戶名被占用了- ♂ (0 bytes) () 10/05/2012 postreply 16:45:12