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The Samsung Galaxy S4, model i9505, features a 13-megapixel rear camera, and a 5-inch 1080p display.

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LCD displays visual perfect, no response

Trying to fix my galaxy s4 and the screen is totally unresponsive to touch. I've replaced the digitizer and front frame assembly kit twice. The first time I figured maybe they sent me a faulty digitizer so I returned it no problem and ordered a new one from a different vendor. This time yielded the same result screen works no touch response. I'm fairly certain its something to do with the LCD connector strip that connects the digitizer but cannot figure out what's wrong with it. Am I going to have to purchase a new logic board now? What were possible causes that could have effected it when I replaced it?.

I'll also add that i initally attempted to replace just the screen and that's what initally broke the digitizer.

Any help is greatly appreciated

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1 Answer

Make sure the new part is work. Have you tested the new digitizer before you assembling the phone?

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1 Comment:

If your old the digitizer can work before replacing, it means the motherboard is ok.

If you replace the digitizer because it broke, you should test the new digitizer at first. Just connect the new part to another S4, and you will know the new part is in good condition or not.

The new part can work at another S4, but it can't work at your S4. Your motherboard is broken.

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