No Backlight 3gs

i installed new screen on 3gs. after trying fit realized had sent me iphone 3g screen waited correct screen arrive , installed it. backlight not work. looked @ 6r8 coil , did not appear have issues. there cable cause or should try getting new screen, maybe ribbon has error in one? ideas?

 

the 6r8 went bad

need solder out , replace it. google search "replace 6r8"

 

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