Fireware Issue

I have bought new 70mai dash cam pro+ and performed firmware upgrade from 1,0.10ww to 1.0.15ww.

Red power led is on but it does not start at all and the screen is black.

 Do you know why?

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  • 0 Quote 2Floor
    Hi. I have the same problem with my 70mai Dash Cam Pro + . New version of application is 1.0.15ww
    Could you help? How to fix this problem? 
    Many thanks in advance. 
    14 Days+
  • 0 Quote 3Floor
    Me too!!! help, please
    10 Days+
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