HELP ME vivo y81 backlight problem

Kliffax

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Good evening mga master,ito nanaman ako manghihingi ng advise sa inyo!

vivo y81 no backlight ,pero makikita yung vivo logo nya pag natapat sa ring light.
wala pong reading yung pwm_out nya,normal naman yung led a at led k.
missing po yung 1.8 volts

ACTION TAKEN:nagpalit na ako ng coil ,ni reball atpinalitan ko na rin yung small ic nya galing sa same unit,ganun prin..
anu kaya remedyo ito mga master?
salamat sa makakasagot mga master.
 

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