*click on image for larger view*

Don't worry about losing the serial number sticker, as if you ever do need to know what it is, there is another serial number sticker located underneath the 3DS battery.

Use Tape?

Or Take a photograph of it.

PIKACHU IN JAPAN  wrote:

 

Or Take a photograph of it.

I recommend that too, so that you can guarantee easy access to your code in the future.

And [I think] the serial code should appear on your club nintendo registered products (if you registered your 3DS of course).

Incorrect.

1. Under the cover, there is no serial number that can be used to identify the system.

2. Taking a picture of it is meaningless. My 3DS could be out of warranty, so I could take a picture of my friends serial number and send that to them. See? Not gonna happen.

So, once that sticker peels off, you're screwed. Add that to the list of design flaws of the 3DS.

I sent mine to them 5 times, and soon to be 6. Permanent scratches are on the system, again, from the bottom screen.

     I don't really think that Nintendo would repair a sticker on the system considering it isn't actually part of the system and it isn't anything major, but who knows  ( if they did it would most likely cost you some extra money). Yeah, like the other posts said you should write it down, take a photograph of it, or tape it on. You never know when you may need the Serial Number again.

LINUX2GO  wrote:

 

you could get a nyko powerpak+ for the 3ds. it increases battery life almost 2 fold and you can put the original cover with the serial on it away in a safe place.

Its a WIN-WIN Situation if you dont mind a little bulk to it. I personally like the feel of it with the powerpak+ as i have big hands.

First, I'm not sure how this fits with the rest of the discussion about the serial number peeling off.

Second, if you do decide to use the Nyko battery, keep in mind that Nintendo wants you to use only Nintendo batteries in the 3DS.  If you use a Nyko battery and the system is damaged by the battery, Nintendo will not cover the damage under warranty.  I'm not sure what kind of warranty Nyko has, but I doubt that they would cover damage done to the system by their battery, either.

My 3DS's serial number was peeling off and I just simply put clear tape over it.

No need to tape it.  Like Beardedone said earlier, there is a serial number under the battery.  If you are worried about easy access to your serial number, you can find it online on your Club Nintendo account, OR you can get out your 3DS box; the serial number is easily located on the side of the box.