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使用的BQ4050在放电时电流应是负值,但发现有2pcs电流却为正值



在正常的经过测试的18001 PCBA上换成异常的4050芯片,经过检查后发现,异常的4050芯片无法编程和导出srec文件,也无法校验电流,显示校验fail。
通过bq上位机data memory直接导入正式发布的gg文件,电流显示还是异常(放电2A,显示充电158mA)。如下是线路图,哪位能帮忙解答一下