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Lenovo's Intel-based IdeaPad 5 laptop, released in 2020.

Display backlight not working

Two Flexi cables was replaced. Not helped

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Hi @ruslansvisockis

Was the battery disconnected from the motherboard when the EDP (video) cables were being replaced?

Check if there's voltage on pin 1-3 of the EDP cable connector on the motherboard.

If there's no voltage check if motherboard fuse # FG3301 (3A_32V_ERBRD3R00X) is OK and not blown.

Here is a composite image showing the backlight power supply circuit that may help.

Block Image

(click on image)

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