# 硬件操作注意事项

**关于reset按钮**

&#x20;**R2s的reset位置在usb口下方。友情提醒：此按钮与电路板的固定并不可靠，切勿用力去戳这个按钮。有几个用户在使用中，用力过大，导致按键脱落。但是不影响使用。**

**第三方固件一般没有匹配reset按钮。若需要重置，建议重新刷固件，也就是一两分钟的事情。具体刷机方法请参考刷机方法部分。**

## **电源的选择** <a href="#dian-yuan-de-xuan-ze" id="dian-yuan-de-xuan-ze"></a>

**R2S推荐使用5V2A的USB电源，切勿使用快充。充电器的输出电压只能为5v，不能有其他电压输出。搭配优质数据线。不建议使用路由器及光猫USB供电。建议使用线径粗，接口质量好的USB-A至USBC的数据线，否则概率出现问题。**

**R4S推荐使用5V4A的USB电源，切勿使用快充，充电器的输出电压只能为5v，不能有其他电压输出。**

## **TF卡的选择** <a href="#tf-ka-de-xuan-ze" id="tf-ka-de-xuan-ze"></a>

**TF卡的兼容性和稳定性决定着刷机的成功与否和后续使用上的稳定性。MLC颗粒，均衡磨损带来更长寿命，高至85度的工作温度，同样适合R2S的工作环境。**

**​**


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