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I have replaced my digitiser on my iPad mini, and the LCD backlight has stopped working. I have tested the backlight Fuse and Diode with my multimeter and they both seem to have continuity.
Is this a good question?
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Go into settings and make sure the backlight isn't turned all the way down. It defaults to the during repair sometimes. If its not, then its almost certainly a backlight filter. There is more than one to check.
Google for the schematics, then inspect the appropriate ones. You can usually spot the blown one with a microscope and its a bit safer than poking around with a meter.
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Thanks... I checked the brightness in settings and its turned all the way up so it's not that. I have checked the backlight filter and backlight diode and that seems to have continuity. Are there anymore that these two? I couldn't see any others mentioned online? And couldn't find any schematics online..
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Often times, a reset will solve the problem. I have changed dozens of digitizers and lcd's in iPads and have simply gotten into the habit of doing a soft reset every time. Try that and I am almost positive it will solve the issue.
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Thanks.. I have done a reset by holding down the Power & Home button and that hasn't solved it either..
George, it might be a damaged lcd or it might be a problem with the motherboard. I would try a different lcd if you have one...
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i would try the soft reset ... sometimes it works ... other than that you might have to open it up again and, disconnect the battery and reconnect... this happens a lot when changing the digitiser.
by Reboot Gozo
Thanks I have tried a soft reset and disconnection of battery and still the same!
by George