Replacing the battery in a Nokia AD-43 Audio Controller for the N95

This is the wired remote control that comes with the Nokia N95. The original one I had started getting the “Enhancement not supported” error message when I plugged it in. I read that this usually meant the battery was dead, but found it hard to believe there was a battery even in it since there seemed to be no way to get to it and replace it. Well, since I had an extra one, I decided to just experiment.

I read there was a screw underneath the spring-loaded clip and I thought I found it beneath the “A” in NOKIA stamped on the back. I figured I could drill a hole in the clip and unscrew it. Smart, huh? Well, as you can see, it’s a decoy “fake” hole and the real one is right next to the spring. Unfortunately, I had to destroy the unit to figure that out. The method would have worked if I would have drilled the hole in the right spot…good idea…bad execution.

As you can see below, the tiny Phillips head screw sits on a riser. I obviously did not get to try it, but it appears that if you unscrewed it, the silver part of the device would come off with a little prying. There appeared to be no glue or anything else holding it together.

When you lift the circuit board, do it initially from the side with the cord. The opposite side has the headphone connector which is anchored in the hole in the casing. Helps to hold it in I suppose. After you lift it a bit, you’ll need to pull it toward the corded side to slide the connector on the circuit board out of the casing hole. Do this very carefully and note the one switch (I’m not sure what it does) may fall out. The other switches (volume) are attached to the case.

The large circular thing above is the battery and it sits below the circuit board. Note that the battery is adhered to the plastic case underneath it with some two-way stickly stuff. You can just pry it lose. It’s a 3V Lithium Battery model CR2032.

Initially, I tried to push out the small rod acting as a hinge, but its pretty tight and wouldn’t budge. If I do it again, I’ll definitely still go with drilling a hole.

Happy to take the hit for whomever else may try this. These instructions and pictures should help immensely. Obviously, this will void any warranty and do this at your own risk, but this goes without saying, huh?�



Hi, thanks for your article. Using your article as a guide, I managed to dismantle my AD-43 without breaking it, and assemble it back.

1) There is no battery in my version of the unit I just purchased on eBay from China.

2) There is a pin as you described that holds the clip in place. You can remove it using a paper clip. The pin is not uniform in shape; i.e. it will only come out if push it the correct direction. Try doing so in both direction.



No battery? Interesting. Assuming it works the same that’s very cool.

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