don't drop your mobile phone and try to catch it
cracked my retina display by playing "tennis" with my mobile phone and doing a netball. result of trying to catch a falling phone and instead batting it into my macbook lcd....lots of horizontal and vertical lines on screen radiating from the impact point.
the repair went fairly smoothly but better(higher resolution ) photos would have helped in the repair guide. I have done over a dozen repairs on MacBooks over the last 10 years and have some experience. in this time the components and internal parts have changed a lot. this repair required the removal of 5 connectors, 3 for rf, 1 for the camera and 1 for the display. the rf connectors are pretty straightforward but the camera and display were not as the display connector locking mechanism was not clear to me and since it was so small(even working with magnifier) that it took considerable time to figure out. this could be remedied by better pictures and more advice in the repair guides. the same was true of the camera connector. eventually I was able to effect removal without breaking anything. the think that they don't tell you is the rubber hinge covers are held on by poor adhesive tape as is the flat rubber guard over the camera and rf cables. either this should be part of the repair kit or suggested to buy at same time since once removed these adhesive strips are no good for re-assembly.
for a person with a lot of experience rebuilding mobile phones and other laptops I had a fair amount of frustration on this.it seems connectors are changing continuously and the size shrinking making it harder to work on. once having done this I think I could do in half time without so much stress. this is where the guide needs improvement since the cables on this system were very different than on my previous ones.
use good lighting with illuminated magnifier, study up on different micro connector types and how they come apart and go back together. don't rush, if it won't budge don't force it. sadly the spudger I had from previous repairs was too big to do the things required for connectors release. oh and while you are in there use some compressed air to clean the boards and fans....these laptops are dirt magnets. but most of all...be very careful of physical damage and electrostatic damage as this is easy to do. think of how much pressure or desire you have to touch your cornea of you eye....this is the level of force you should use if you don't want to break anything. most of all have patience. in he end mine works fine and I am typing this review on that system.