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Modelo A1288 / 8, 16 o 32 GB de capacidad

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Replaced LCD and its not Touching Chassis/Digitizer - NOT WORKING!

I cracked my screen on my ipod Touch 2nd Gen and it then caused my LCD screen to crystalize and have liquid looking marks thru out the screen. I purchased the correct LCD and a complete 2nd Gen Digitizer with Chassis Bezel that was pre Assembled. The LCD screen went in great...followed the instructions and had no issues until I put the Digitizer(outer screen) on and when I went to slide START it will not recognize my TOUCH....literally! At first I thought it was that I did the install wrong, but I disassembled it, broke the outer screen, purchased a new one and same issue. It seems as if the LCD screen is not level in the base somehow....not sure how to fix that. Its like it needs to be raised up to MEET the glass of the digitizer???? any help would be wonderfully appreciated!!! Thanks a ton..... :o)

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The LCD's relative position won't affect the function of the touchscreen which is entirely independent. As long as the metal plate behind the LCD is screwed into place correctly, and the LCD is positioned into it (with the two raised dots top and bottom corners opposite each other properly located into their respective holes in the metal back plate), then it should be correctly situated.

The connectors used for things like the touchscreen can be difficult for someone not conversant with them to properly locate into their corresponding sockets. Generally you hear clicks as it clips into place, but pressure must be asserted over all parts of the tiny connector to ensure each part is fully engaged into the socket. Quite firm pressure is needed once it has started to go in to the socket (don't apply too much pressure until it is located in the socket correctly as you don't want to damage either connector or socket by applying presure when it's partly aligned, but not fully).

Also, the tiny flex cable on the touchscreen is infinitely delicate, and at no point should suffer any strain or too much movement. It tears easily too, especially if you catch it on metal parts like the back plate housing which has a tag sticking up right next to where the flex cable resides when connected to the logic board. Generally a small tear will affect only a portion of the touchscreen from working.

Another issue is that, apparently, some of the non-Apple touchscreens don't work well or at all. I can't verify this, though, as I haven't used them. I found it was only slightly more for genuine apple parts from eBay so went down that route.

The underneath of the digitiser assembly has a thin perimeter of plastic-backed foam around it, which sits against the LCD when it's all clipped together. That gives you an idea of the distances that should be between them.

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I've done a number of digitizer replacements now across the spectrum of iPod, iPad, iPhone and other smartphone-type devices and they are all uniquely challenging in their own way.

But, like the last answer, I'd agree that a key step in a successful replacement is making sure that not only are the ribbon connectors seated properly and securely, but also that they STAY THAT WAY through the reassembly process. I just did an iPod 4G and I know what a properly seated ribbon feels like. Despite the challenge of seating form the underside of the panel that I couldn't remove entirely, I did obtain a click fit on the thin touch ribbon. However, as I reassembled the phone a very small portion of the thin black digitizer is forced to bend against the housing (by design) and this would cause the connector to come free just as it was set back in place . A small copper adhesive strip present on the original, but absent on the iPod I was fixing (previously fixed by someone less attentive) would probably have held it inand made this a 10-minute job instead of a frustrating hour (or so).

Mimicking what I saw in an instructional video, I made my own piece of adhesive backer using Reflectix metal duct tape. With this strip of tape in place, firmly holding the connector in position against the force of the ribbon conforming to the case during reassembly, I was able to get a successful test on the touch before reassembling.

I would venture to guess that many of these "non-funtioning touch screen" posts are a product of poorly positioned ribbon connectors OR more likely, connectors that were snapped in place properly, but came free during reassembly. I would also suggest adding a single Z accordion fold to the black digitizer ribbon, keeping it from resting under the digitizer back which will cause pressure on the display and create an irritating pressure hot spot. You'll know it when you see it.

Good luck, and be patient even as you back out the multitude in minuscule screws for the umpteenth time....

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Cindi estará eternamente agradecido.
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