Answers
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Answer to: Does no backlight really mean logic board problem?
no thats why you want to try with a known workign lcd first before you work on the logicboard. the logicboard coil repair is not that hard if you have the right tools repair video update okay this is a soldering repair video on iphone 4S backlight coil the whole soldering process is the same for iphone 4 http://www.youtube.com/watch?v=Bsk6rg0KX... -
Answer to: back light keeps going out
if the lcd and the connector connection have no problem then... light blinks when the coil start to fail. yeah your coil is probably bad, you need to change it. youtube video on how to change the backlight coil to fix the backlight http://www.youtube.com/watch?v=Bsk6rg0KX... -
Answer to: iPhone 4 - Blank screen, backlight only, water damage
youtube video on how to change the backlight coil to fix the backlight http://www.youtube.com/watch?v=Bsk6rg0KX... -
Answer to: Backlight ic repair after water damage
You can get the iphone 4GS backlight Coil and backlight IC chip from here update youtube video on how to change the backlight coil to fix the backlight http://www.youtube.com/watch?v=Bsk6rg0KX... -
Answer to: No GSM signal after teardown my iPhone 4! Help!
replace it with a new blue iphone coil that will fix the problem you can buy a new blue coil here for the repair -
Answer to: No Signal after disassembly
you might need to replace with a new blue iphone coil that will fix the problem you can buy a new blue coil here for the repair -
Answer to: Signal drop and keeps losing service "No Service"
you can replace it with a new blue iphone coil that will fix the problem you can buy a new blue coil here for the repair -
Answer to: No Service after Teardown :/
you can get that little blue inductor coil new here -
Answer to: Why "No Service" after replacing LCD screen?
you may need to replace the blue inductor coil
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Answer to: Change 3GS backlight coil to iPhone4?