手机2G改为3G或者是4G网络不仅需要手机本身支持该网络,还需要周围有这些网络信号的覆盖。
以iphone为例,具体步骤为:
首先准备一台iphone5S手机,点开主页面的设置,如图所示:
![](https://iknow-pic.cdn.bcebos.com/0df431adcbef76092d0fae1922dda3cc7cd99e2b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
打开设置里面的蜂窝移动网络,如图所示:
![](https://iknow-pic.cdn.bcebos.com/f2deb48f8c5494ee77d53b9f21f5e0fe98257e44?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
点击进去蜂窝移动数据进去之后会有蜂窝移动数据选项,并且一定要开启蜂窝移动数据,如图所示:
![](https://iknow-pic.cdn.bcebos.com/8435e5dde71190ef0b3fa659c21b9d16fcfa606b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
蜂窝移动数据选项点击里面的语音与数据,如图所示:
![](https://iknow-pic.cdn.bcebos.com/9c16fdfaaf51f3de30458de298eef01f3b297944?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
最后点击语音与数据后会有4G.3G.2G 的网络选项,点击所要选择的网络数据,如图所示:
![](https://iknow-pic.cdn.bcebos.com/902397dda144ad34395db301dca20cf430ad8551?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
注意事项:
手机一定支持4G网络。
使用网络一定要开启蜂窝移动数据网络。