Nintendo of America has announced that they will no longer be offering factory repairs for the original Nintendo 3DS.
In the notice, Nintendo wrote:
Nintendo no longer offers factory repairs for the original Nintendo 3DS system. Newer Nintendo 3DS family products (including the Nintendo 3DS XL and Nintendo 2DS) are still being repaired. If you aren’t sure which system you have, check the serial number on the back of your system. If the serial number begins with CW, you have an original Nintendo 3DS system.
For those who own one of the original machines and run into problems, the recommendation is to replace or upgrade. Of course, Nintendo has options including a new Nintendo 3DS / 3DS XL or the newly announced Nintendo 2DS XL which launches on the 28th July.