iPhone 4s不能下载安装软件按以下方法操作:
首先,检查下是否是网络原因,重新连接或换个网络。
![](https://iknow-pic.cdn.bcebos.com/78310a55b319ebc4cb4c36788926cffc1e17161e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
不行的话再开启再关闭“飞行模式”。
![](https://iknow-pic.cdn.bcebos.com/32fa828ba61ea8d3cf1034e59c0a304e251f5824?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
还不行的话再修改下载App Store的DNS,并在App STore里重新搜索要下载的软件并“安装”,可以试着将DNS服务器修改成 178.79.131.110。
![](https://iknow-pic.cdn.bcebos.com/aec379310a55b3199096c29448a98226cefc17e7?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
检查自己是否通过itunes登录了,如果没有,需要注册并重新登录一下。
![](https://iknow-pic.cdn.bcebos.com/0b7b02087bf40ad1c72786025c2c11dfa8ecce14?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
打开“设置”-“通用”选项,进入“描述文件”菜单,移除,再试试能否下载。
![](https://iknow-pic.cdn.bcebos.com/9358d109b3de9c82f6ceb96e6781800a18d843a3?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
进Cydia,删除Installous,重装Appsync补丁。
![](https://iknow-pic.cdn.bcebos.com/8718367adab44aeda1a4fe05b81c8701a08bfb6d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)