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I think it may be damaged beyond repair, but power off  and leave it a few hours 
to make absolutely sure no residual charge exists. 
 
If you can check your sd card in another linux system run a filesystem check to make 
sure card is ok. 
 
On my Orange Pi zero  with no card and power applied I get ethernet LEDS lit and no green 
power light. With a bootable sd card the green power light comes on after 2 or 3 seconds and loads normally. 
 
I think though this is perhaps damaged beyond repair. |   
 
 
 
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