i was charging my smart remote and knocked down a heavy object.  It hit the remote and now the thrust/yaw stick is locked to the top.  Any suggestions besides calling DJI?

Hello and good day Dr. Z. I am sorry to know what happened to the left control stick of your DJI Smart Controller. I would recommend you contact our support team to start up a ticket at https://www.dji.com/support?site=brandsite&from=nav . We have the professional team who would do their best to fix the said issue and then the corresponding resolution would be provided. In addition DJI do not recommend doing a DIY in fixing the said remote controller. To avoid further damage on the said unit and this process can void the warranty of the DJI Smart Controller as well. Thank for understanding and for your support.