More tedious and minute than expected, but worked
Battery would not hold a charge
Could not have done it without the guide. There were a couple of steps when I had reservations about starting, but could not go back. It came out well. I would pay someone to do it Next time.
Be sure you really want to do it yourself because there are many points where you can screw up. I rated it difficult because the parts are so minute. You must keep up with which screws go where because you cannot tell one from the other. Don't use the pin point tweezers to handle the screws because you wil loose your grip and shoot the screws into oblivion and never be able to find them. Read all the comments from each step because there are nice hints in them. The guide had no steps for putting everything back together and that is more than just 'do it in reverse order'. Some connectors 'clicked' when properly positioned and others did not. That would have been nice to know. I was never sure whether each ribbon cable was properly placed, but apparently they were. Frankly, I was surprised when it worked upon completion. Kudos to the guide.