Hi I am on X9s with firmware V 1.2.7 , I am having issue with X9s totally can not boot up , the back power is ON , so I try to power off and on again , this time the X9s power up with stay at "boot " label only on X9s display. I Off and on again , then boot up normally. On second day , I try again with on the X9s , same thing the X9s cannot boot up . I off all power for few hours , this time can boot up , may I know what is causing this issue?
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