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Hi, So basically I was repairing an iPad Mini 2 (A1490) by replacing the digitizer. During the process, the LCD glue was unusually strong and I accidentally snapped the LCD. So, I grabbed a spare iPad I had (an iPad Mini 2 (A1489)) and according to iFixit they took the same exact LCD. So, I took the A1489 LCD out of the iPad and began putting it into the A1490 iPad along with a new Digitizer. However, once I finished it, I tested it and I get absolutely no life from the iPad. No dim images, no charging sound, iTunes doesnt recognize it or anything. After that, I decided Ill try the digitizer and LCD on the old A1489 iPad then to see whats up. However, upon putting them on the A1489 iPad, I get the same exact results. I redid it twice and havn’t had any luck. No charging noises, and iTunes isnt recognizing it. I looked through several threads but couldnt find anyone who didnt have any signs of life at all. I have replaced several of these screens, but this is the first major issue ive come across. Thank you for your help. Edit: Hooked up the broken LCD to see what would happen. It stutters up and flashes normal broken LCD randomness. But I also noticed that the battery is dead, as in on the “Plug me in Screen” So that would explain the unresponsiveness to iTunes and no beeping sound. But, I dont understand how I could have broken the second LCD. Is it possible that it is the backlight and im just not noticing it? How hard is it to see?
Did you isolate the battery prior to disconnecting the LCD? Not doing so can cause the ferrite bead that filters the voltage rail to blow. As BernieG suggests, shine a bright light on the LCD to see if you can see a dim image. That would tell you the backlight filter is blown. Replacing the filter is a micro-soldering repair.
If the old broken screen lights up from behind, it means your backlight circuit is OK. I just fixed an iPad Mini 2 two weeks ago that wouldn’t accept one LCD but worked with a different one for I don’t know what reason. The seller stated that there were incompatible versions. I don’t know if I had just received a bad part (which the seller replaced anyway), but I know for sure that it was indeed an iPad Mini 2 LCD.
