iPhone 7 starts up with black screen or no display on backlight but still working, and the boot current is normal. It still exists after replacing the screen. REWA LAB tested and found that this malfunction is caused by broken backlight circuit on logic board. Please check the video for the repair details of iPhone no display.
iPhone 7 Black Screen/ No Display Backlight Repair
REWA Team September 23, 2021 at 12:00 AM
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