不管是软路由或者刷机，一般从官网下载的都是国外的软件源，国内使用非常慢，很多时候都是超时。下面我们将地址替换成国内的镜像源。方法很多，这个是最简单的。
国内镜像源地址
https://mirrors.cloud.tencent.com/openwrt/
替换原有的地址
src/gz x-wrt_core http://downloads.openwrt.org/snapshots/targets/ramips/mt7621/packages
src/gz x-wrt_base http://downloads.openwrt.org/snapshots/packages/mipsel_24kc/base
src/gz x-wrt_luci http://downloads.openwrt.org/snapshots/packages/mipsel_24kc/luci
src/gz x-wrt_packages http://downloads.openwrt.org/snapshots/packages/mipsel_24kc/packages
src/gz x-wrt_routing http://downloads.openwrt.org/snapshots/packages/mipsel_24kc/routing
src/gz x-wrt_telephony http://downloads.openwrt.org/snapshots/packages/mipsel_24kc/telephony
替换后的地址
src/gz x-wrt_core https://mirrors.cloud.tencent.com/openwrt/snapshots/targets/ramips/mt7621/packages
src/gz x-wrt_base https://mirrors.cloud.tencent.com/openwrt/snapshots/packages/mipsel_24kc/base
src/gz x-wrt_luci https://mirrors.cloud.tencent.com/openwrt/snapshots/packages/mipsel_24kc/luci
src/gz x-wrt_packages https://mirrors.cloud.tencent.com/openwrt/snapshots/packages/mipsel_24kc/packages
src/gz x-wrt_routing https://mirrors.cloud.tencent.com/openwrt/snapshots/packages/mipsel_24kc/routing
src/gz x-wrt_telephony https://mirrors.cloud.tencent.com/openwrt/snapshots/packages/mipsel_24kc/telephony
把替换后的地址粘贴到这个位置保存，然后更新列表就OK。我这里使用的是腾讯的地址，替换后记得访问一下地址，是不是能看到源。