PictoChat relies on local wireless. Make sure your wireless switch is on. Conclusion
Distributing the official PictoChat application as a download file is a violation of copyright law. For this reason, direct links to a pictochat.nds file or a pre-packaged "Pictochat 3ds Cia" are never provided in legitimate homebrew guides. As one community member on GBAtemp noted regarding a similar "firmware.nds" file, "I'm not going to direct you to that file for obvious copyright reasons". Pictochat 3ds Cia
This is the open-source software manager used to install CIA files on custom firmware. PictoChat relies on local wireless
A ".cia" file (Custom Install Archive) is a file format used to install applications, themes, and games directly to the Nintendo 3DS home menu. A "PictoChat 3DS CIA" is a specially packaged version of the DSiWare version of PictoChat, designed to be installed on 3DS consoles running custom firmware (such as Luma3DS). For this reason, direct links to a pictochat