Fifth generation of iPhone. Repair of this device is straightforward, and requires screwdrivers, prying tools, and patience. GSM/CDMA / 16, 32, or 64 GB / Black or White.

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No video, no sound and no touch response after screen replacement

After replacing the screen of a working iPhone 4s with broken glass, taking care to disassemble and reassemble the smartphone with the greatest attention, the device has no video, no sound and no touchscreen response. By connecting to a PC, I can note that the device "works": the operating system starts up without problems. Watching mainboard under a microscope I noticed an unsoldered pin on the LCD connector, as shown in the video:

Someone is the same thing happened ?? I'm in trouble and I would kindly need your advice on how to proceed. I'm provided with sealing station and motherboard's spare parts, but do not know which components are damaged. Please help! Thanks in advance, elnano.

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1 Answer


is it the upper left pin?

perhaps there is helping a little bit of solder???

Good luck

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Yes, it is! I will try to solder it and i'll update you!

Thanks for your reply!


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Alberto will be eternally grateful.
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