iPad air backlight not working
I have backlight problem, I checked diodes, both are ok and have 3.87V. Also there is continuity to lcd connector (pins 35, 37, 39, 41) with the same voltage. I checked backlight filter, looks good and also have voltage (3.82V) from PPVCC_MAIN_LCD_SW_CONN, voltage is present too on LCD connector (pins 17, 19 , 21, 23).
I don't have any idea what to check else. Any suggestions?