Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Does this work on d3100 on manual and live view?
Document: I've only just taken delivery of this item, so a more comprehensive review will have to wait until another time, but I just wanted to say that I tried it out on our Nikon D5100, just to see if it was working okay, and it worked fine in live view. I am saying this because I saw another review that said the item didn't work with the Nikon D5100 on the live view setting.
Works well on my D3100. Some lag when using live view, but who uses remote shutter with live view :D ?
I purchased this remote in order for me to focus the camera during video recording in live view (i.e. filming) without having to reach across the shot of the frame. I considered a wireless remote, but you can't use it to focus only. The wireless remote would focus and take a picture. You couldn't disable the shot (i.e. shutter release).PROS- This remote is essentially an extension of the shutter-release button on the camera.
Recently purchased this remote and it works great with my D5100. Just plug it in and use. Pressing half way on the shutter focuses great and full press takes the photo. I really like the fact that you do not have to switch to remote in the camera menu. You can leave the setting at single shutter and the remote still works. My only complaint is that it cannot be used using live view on the D5100 but I rarely use live view at all.
Got the AF to beep but wouldn't release the shutter. This is the second review that says it will not work on d3100, so if you have d3100 do not buy this remote release it will not work! !
I have recently purchased this and I asked my brother to send it from the US to Lebanon. I was surprised that I have received a different one, that is compatible with D800 or something similar. Its plug is round and has pins inside so there's is no way it will work on D7100. Also I cannot return it since I live in Lebanon and not the US and I use my brother's account to buy stuff.
I know there has been mixed responses on if this would work with the d3100, I am here to say it works flawlessly the moment i plugged it in it worked, Now this being said please realize this isnt what you would want if you are trying to include yourself in a family shot, the line isnt long enough, however if you are looking for something to use and not have to press the camera each time this is perfect. again IT DOES WORK WITH THE NIKON D3100
works perfect with my nikon d3100 is more comfortable to shoot from the camera and you reduce much movement, I recommend
Works great with my nikon d3100. I didn't stop to think how short 3 ft was when purchasing it, but it works for close up family portraits or long exposures. Ill probably buy a longer cord in the future.
This just wouldn't work! Find another solution - that's my recommendation.
Answer: Yes it does work with the 3100 and 3200.  I have shot about 1200 images with it and has never failed me.