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CC2541透传,手机无法收到数据问题

请教一下诸位,SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR1,SIMPLEPROFILE_CHAR1_LEN, buf );发送数据时候,用LightBlue接收数据,SIMPLEPROFILE_CHAR1是可以收到数据的,但是用手机透传APP,手机就无法收到数据。这个是什么原因造成的?