4.3.3升级5.0.1错误1604，之后无限DUF模式…

今天朋友的手机原生4.3.3升级5.0.1失败，错误代码1604，之后就无限恢复模式了…电源键＋home按了后，会出现白苹果，可是一会又恢复模式了！求大神帮忙…解决！小生不胜感激

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# Copyright (c) 1993-2009 Microsoft Corp.## This is a sample HOSTS file used by Microsoft TCP/IP for Windows.## This file contains the mappings of IP addresses to host names. Each# entry should be kept on an individual line. The IP address should# be placed in the first column followed by the corresponding host name.# The IP address and the host name should be separated by at least one# space.## Additionally, comments (such as these) may be inserted on individual# lines or following the machine name denoted by a '#' symbol.## For example:##102.54.94.97 rhino.acme.com# source server# 38.25.63.10 x.acme.com# x client host# localhost name resolution is handled within DNS itself.

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快来人吧

网友回复================================
我教你 1604很好解决 你进DFU模式之后恢复的过程中弹出错误1604之后不要拨掉数据线，你只需要关掉itunes，然后再打开itunes，继续恢复就行了，多试两次，你会成功的！亲身经验！