What is the correct backlight coil for iPhone 4 CDMA version?
I have an iPhone 4, 16GB, CDMA version which has lost its backlight after water immersion. I got iTunes to recognize after cleaning, but realized that the LCD/digitizer is toast, after replacement, and still nothing on screen I figured the backlight coil maybe IC was damaged. I believe I have correctly identified their location because I was able to swap the IC for one off an old 3Gs (a tad larger) and got my screen back! But no backlight :(
Can someone verify I have identified the correct coil? Also can someone verify the coil and IC are the same in CDMA and GSM before I buy a set? I have not found much data online about the CDMA version iPhone 4 or backlight IC and coil swaps.
Thank you for any guidance.
New IC and coil didn't work
Ohh dear, back to the old drawing board. The IC and coil change did not improve the backlight situaiton. The iPhone's backlight is still not working correctly, I can see if I hold it under a light and I know it's loading into iTunes. What else is possibly wrong? I realized several other coils look like they might have had some water evap and maybe burns?
Maybe try swapping them? Any further suggestions, I'm finding the CDMA iPhone or at least this one a bit more challenging to track down problems, but what else are weekends for. ; )
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3 件のコメント
you changed the IC, or the coil from "an old 3GS"?
oldturkey03 さんによる
Yes oldturkey03 I swapped out the IC with one from an old 3Gs (it is larger than the iP4 but fits) and got my screen back. I did that because I didn't have a spare for the iP4 and thought it would have a chance of working, and it did. But there is zero backlight so I don't know if I correctly identified the backlight coil, so I pulled my coil and put in the 6R8 from the 3Gs (in my photo that's the stock IC and coil), everything right now is much tighter, so I'm a bit stumped and looking for some suggestions.
I did restore the whole iPhone thinking possibly that might help me get my backlight going, but no. I did notice that my wifi is not functioning and am thinking that's from a dip in the water too and might need to swap that chip, but first things first.
I did order up a new IC and coil but everywhere I looked was not too specific and did not clarify it was for CDMA.
John Painter さんによる
John Painter, at this point in the game, you really have nothing left to lose. I'd go for it and replace the other components as well.
oldturkey03 さんによる