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用EV2400 bq studio 软件第一次读取电池电量ok，后来点了UNSEL。通讯不上了。3个led灯都亮。
网上说要升级固件，连接不上怎么升级，求解答
另外求解如何设置EV2400 SMBUS通讯管脚SDA SCL 1.8V？默认是3.3V
没用，重启电脑都不行
