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Es2 ninebot dashboard not working


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Hi guys , this is my first post I hope its in the right place. 

So in short as I can, I am trying to fix the es2 scooter , it worked well than one day I turn it on and it beep for a sec and turned off. 

For a while i thought it a battery issue( his last ride was ~14 km ). 


Started diagnosis using volt meter 

1. Internal Battery output 36 v , blue led blinking 

2. Controller (sitting between the battery to wheels) seems ok  no visibility burned resistors or capacitors voltage to dashboard seems ok 36 v ( checked at the soldering at the start of cable)

3. Dashboard does not turn on- has a G T P 5 in the entry point voltage from P and G 36 

G and 5 - 0 

G and T - 0 

I thought its a dashboard issue, ordered from ali express but the result is the same.

Any idea what is the issue ?

Should I see the 5 volt between G and 5 ?

Where can I find a good electric scheme? 


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