I'm trying to replace the tripod socket on a Nikon Coolpix L810, and I can't figure out how to get the body apart far enough to replace the broken socket.

SOURCE: Nikon Coolpix 2100/3100/3200 battery compartment door latch broken (again)

I just purchased a new battery door for $15 with shipping from nikon. They sent a simple assembly diagram and I was able to replace the door in 30 minutes. I used a dremel to cut the old door off, but you dont have to do that. I got a little impatient.

Just buy the plastic piece and u can reuse the metal parts for your old battery door.

SOURCE: Replacing the battery door on a Nikon CoolPix 4600

Call 3104148107 This is the Nikon Parts line, be warned it will probably take as long as 30-45 minutes of old time to get to a person. 
Once you can get to a person, give them the camera model and describe the problem. They just sold me a replacement battery door for $9.95 + $6 dollars shipping and handling. 

The rep was so nice he even printed out the device design blow up, and the relevant section of the manual, so I could see the step by step with out having to purchase the full blown repair manual, which runs $83.

SOURCE: Nikon Coolpix S210 lcd broken - need step by step instructions

Most cameras are not that hard, if you are careful and willing to make notes of where each screw came from.
Be sure to get the correct screwdriver to fit the screws correctly and use enough pressure directly to loosen each screw...this is quite important, because if you strip the screw's head, it can be messy.
Most LCD screens are directly under the back cover, and can be replaced usually, once the back is off, remove three or four screw which will hold the LCD frame on. Once that is loosened, then you can carefully remove the screen and see if you need to remove anything else before loosening the cable plug. Take care here, because there are a few different ways these cables may be connected. Some are simply pushed into a connector. Some have a socket which has locks which must be loosened to remove the cable. These little sliding plug connectors are delicate, so you must take it slow and not rush the job. Some of these fold up to loosen, some simply slide away a bit to loosen the plug lock.
Most anyone who has done any delicate work on anything electronic will understand what I am talking about here.
A repair manual may be able to be downloaded for free, but you may have to be a member (usually free) in order to download manuals. Some may charge a small fee for the pdf file.
Hope it all works okay.

Testimonial: "Thanks for the suggestions and help. It worked."

SOURCE: Nikon 70-200mm Tripod Mounting Question

There should be a mount that attaches around the barrel of the lens with a flat part that would allow you to screw that to your quick release plate. The flat part usually have several screw holes so you can mount the quick release plate for or aft for better balance. These mounts are removable so it may have been taken off.

SOURCE: Removing battery from Nikon Coolpix

i have a nikon coolpix 8400 camera which felldown on the floor and stopped working.how much it cost to repair it? is it worthy?