Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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replaced midframe and digitizer/lcd no image, only backlightpleaseread

i replaced the midframe and the lcd,digitizer combo. I have done this a thousand times with no issues.

it is an iphone 4 gsm

the backlight comes on but the lcd doesn't show anything, my old lcd worked before so i changed it back and hooked it up and still nothing with the old working lcd connected. I then used a third one and still nothing.

the connectors look fine, i hooked and unhooked em 20 times same with the battery with time in between.

i tried the hard reboot and still nothing

i get no response out of the digitizer but my phone will do voice control

any info will help please, like i said i hooked and looked alot and seen a million people online only say that. please let me know something. thank you

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Hi Jonathan, sorry to bump but did you ever solve this issue? I'm facing the same problem now!


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2 Answers

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It is possible you damaged the video output on the logic board by accidentally knocking off a resistor. I would suggest get a 10x to 30x magnifier and look up a diagram of the logic board and do a thorough inspection of the resistors, connectors, etc.

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It is very easy to bend the lcd cable in the frame when installing the front glass. Pinching it between the glass and the frame will cause this to happen.

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Jonathan Perez will be eternally grateful.
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