Question about Nikon Coolpix 3100 Digital Camera

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Cover latch for battery door broken.

Instead of it looking like a loop, it looks like 2 short stubs, so there is nothing for the battery door to catch to keep it closed. Otherwise the camera looks great. Is there any way to fix it?

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  • sforzando47 Mar 25, 2009

    Cover latch for battery door is broken and will not stay tightly closed. It was working if I held it tightly (not convenient) was going to tape it shut when it stopped turning on at all. What is going on?


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I can't keep the battery door cover closed on my Nikon coolpix digital camera L.22

I see this message at least 3 times, so it must be important.
Looks like a mechanical problem. But not having the camera in my own hands I have to do some educated guesses.
Could be something broke off. Could be a small chip of plastic or a very small piece of metal. Difficult to repair it yourself. But you also could look if there is something in the battery compartment that should not be there. Could be just a little bit of debris, that is lifting the battery, (not if the battery is behind the lock) or debris in the door, so you can't close the battery compartment complete, and it can't be locked.
If you can't find anything and it looks as if the battery compartment closes correct, and still you only can't lock the door, please visit your dealer or the Nikon service centre closest to you.

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I dropped my Nikon Coolpix L1 camera and cracked the battery door. Now whenever I take a picture, I have to hold the battery door manually so it will stay shut and recognize the power of the battery. I'm...

So other than the broken battery door (very common) it works just fine?

Well you could go and spend a fortune on another camera. Or you might decide that a few cents worth of sticky tape to hold the door closed is far better value.

I've fixed the same fault on similar Nikon models before by fashioning replacements for the broken plastic tab/loops using shaped short lengths of paper clip wire glued into carefully filed channels using epoxy resin (the designs vary, but Nikon keep making them of plastics with all the structural integrity of cheese!). Doing it that way makes a far neater and original-looking job of it and restores normal functionality.

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The battery door catch has broken

On most cameras you can hold the catch closed with an elastic band around the body of the camera, if necessary with a small square of cardboard over the hatch itself, or several bands, if the hatch actually holds the batteries in place. At least you will be able to use the camera, even if it does look a bit untidy!

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When i plug my vpc-t700 into the mains it comes up with a red light instead of green

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Battery door is broken cool pix 3100 I have a friend with the same camera broke in the same manner Does Nikon have a fix

No, but I do.

You're asking about that stupidly pathetic little plastic loop moulded onto the body, seemingly designed to break.

I've fixed a few of these now using carefully shaped and trimmed paperclip wire held in place using thirty minute epoxy resin. Longer setting epoxy is better if you're patient (essential if you're in a warm climate), but five minute epoxy is a definite no-no.

You'll need a pair of electrician's pliers (preferably miniature ones) with a wire cutter, a small craft knife/scalpel and a set of jewellers files.

Use the knife to cut of the stumps of the original tab.

Straighten out the first two bends only of a regular paperclip (the wire needs to be around 1mm in diameter).

Select a flat file of about the same thickness as the wire, and use the teeth on the edge to cut two small slots where the legs of the old catch used to be. Test the fit using the wire as a gauge.

Now use the pliers to reshape the final bend of the paperclip so that it's nicely squared off with sharp 90 degree bends. You may find that it takes a few clips to get it right. Lay the paperclip into the slots regularly as you do this to ensure that the width of the bent section is correct.

When you're happy with the fit, sit the wire right down in the slots to the correct height for your door to catch tightly.

This is when you'll discover that there are some reinforcing plastic webs (ridges) deeper in the battery chamber which interfere with the fit. Cut slots in them to allow the wire to sit flush. The longer leg of the wire will need to be shortened to around where the first bend in the wire used to be, leaving it around 5cm (2") long.

Now, if you have some, smear a little grease (or even margarine) anywhere that you don't want epoxy resin to stick. Test fit your clip once again, if you've made the slots really snug the wire will sit in place sufficiently for you to test the battery catch engages correctly to give you an idea of how the wire should sit when you glue it.

Use the file to roughen the wire legs and mix the epoxy resin. Using a suitable implement carefully fill the spaces in the strengthening webs through which the wire will pass. Don't just glue the slots, fill in the little squares bounded by the webs.

Apply a thin coat of resin to the legs of the wire, and then lay the wire firmly into the slots which you've prepared. Make sure that it sits flush and will not obstruct the batteries when refitted.

Wipe off any excess epoxy around the rim of the battery chamber and sit the new loop which you've made so that it's at the correct height to enable the battery cover to engage, but no so far out that the cover is a loose fit. The slow setting time of the epoxy will ensure that you have time to get this just right.

When all's well, leave the camera for around twenty four hours to allow the resin to cure. If you've used twelve hour resin then leave it for a couple of days. Shortly before the initial thirty minute/twelve hour setting time though, you may wish to make sure that the battery catch is fully open to make really certain that you don't glue it closed by accident.

When the glue has set, clean of any excess protective grease which you applied and fit the batteries. If you've taken the time to do the job carefully then you'll have a perfect repair to a truly brilliant camera. Even the 2.1 MP version, the Coolpix 2100 was capable of outstanding outdoor shots which I could print to A4 size.

If the loop is slightly loose, then you can usually carefully bend in the top of the loop to tighten it. If it's a bit tight you can usually loosen it a little by gently bending in the sides slightly to give the loop a bit more height.

Click HERE to see how the final repair should look. (Credit to for photo).

The same technique and materials can be used on the later Coolpix 2200 and 3200 models, but the wire is fitted to a slot cut along the rim of the battery chamber cover instead and shaping the wire is *much* more fiddly.

I hope that this has helped; all I ask in return is that you return the favour by rating my answer.

Note that a faster, simpler, but far uglier repair can be made by using a metal or plastic plate screwed into the tripod socket. See here for details.

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