步步高vivo y15t的升级教程在这里整理了一下，相信很多人都正需要呢，这个教程也可以叫做刷机教程了，因为官方包就是采用这种方式来刷入了，这个刷机方式也可以用来升级官方包，所以功能上比较强大一些，...
BBK vivo Y15T upgrade tutorial finishing it here, I believe many people need it, this tutorial can also be called brush tutorial, because the official package is used in such a way as to brush, the brush machine can also be used to update the official package, so the function more powerful some,...
