hussein0101

It's most likely the touch filters located blow the connector. https://youtu.be/kk3mYfngY6c

Check this video out for detailed explanation on how it’s done https://youtu.be/_yfRgs1VXKo and good luck

Check this video out for detailed explanation on how it’s done https://youtu.be/_yfRgs1VXKo

There is no easy way to do it. You must take everything apart then rip the keyboard out since there are no keyboard screws like Mid 2012 and before. Check this video out for detailed explanation on how it’s done https://youtu.be/_yfRgs1VXKo and good luck

The tones are heard as 3 short beeps 3 longs beeps and 3 short beeps. That is an indications that an EFI ROM corruption is detected. EFI chip must be replaced. Microsoldering skills and tools required. Look at this video https://youtu.be/qMxWBYBe-_g

First thing you need to do is find out if the phone charging. You can buy a usb amp meter (very cheap) http://amzn.to/2DXxScM and check if the phone is drawing any amps. Anything between 0.2 to 1amp is good and means the phone is charging as it should. Your problem could be a display issue where the phone is working but not able to display an image or backlight to the screen. This is caused by either a short on the 5.7v rail or the display chesnut ic. You can see a video here that talks about how the 5.7v line works. https://youtu.be/qy7FwDgWvnQ

You can check out this video to see how the backlight circuit works on the ipad 4 tablet and how to troubleshoot and replace the blown filter.iPad 4 half fading Backlight after LCD replacement repair video

https://youtu.be/VeJ_iViObPc

Keyboard replacement on any retina macbook pro is a bit involved. You must take everything down to the bearbone, You can check this video out for detailed explanation on how it’s done https://youtu.be/_yfRgs1VXKo