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- 08:40, 27 October 2023 ASRepairs talk contribs created page MacBook Air A1932 No keyboard backlight after screen replacement repair (Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== Most cases of no keyboard backlight after a screen replacement will be due to an incorrect part being installed. The ambient light sensor (ALS) is used to control keyboard backlight. The ALS is different between 2018 and 2019 model A1932 MacBook Air devices, and are incompatible due to firmware. If a 2019 screen is installed on a 2018 device, keyboard backlig...") Tag: Visual edit