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Technical Information
Service Manual
(3) Settings
User can  set  vibration, message  alerts,  server,  updates,  etc. The server setting  here  must keep  the  same as  the  server setting in 
"Conguration" mentioned before.
Otherwise, remote control will be invalid.
(4) Feedback
User can feedback suggestions to back-stage management for maintenance and development.
Tap "Feedback". Enter your suggestions and then submit it.