Huawei S7-721G after update SD_Card dead

Hi Guys!!
I m Update Huawei S7-721G _V100R001C232B002 Success 100% done Masg say Ok and After pad not on many time power button press also charging not power on ipad is dead any sultion Plz Help me
Now USB connect only show this masg

Coolpad-5210 1xEV-Do GPS port (com19)

Plz Any one can do help me


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