NDS:Identifying Firmware Version with PictoChat

It is possible to identify the revision of your Nintendo DS/DS Lite firmware by purposely crashing PictoChat by removing a DS/GBA cartridge whilst the application is running.

Instructions

 * 1) Place a DS or GBA cartridge in their respective slot. It is unclear whether flashcards would work for the same purpose.
 * 2) Turn on your DS or DS Lite by holding down the Power button, ensuring it boots to the menu.
 * 3) Launch PictoChat and enter any chat room.
 * 4) While in the chat room, remove the cartridge from the slot.
 * 5) Take note of the way in which your DS/DS Lite crashes.

Outcomes and Firmware Revisions

 * V1 firmware - PictoChat freezes outright, no color on either screen.
 * V2 firmware - Greyish-blue color on both screens.
 * V3 firmware - Dark green color on both screens.
 * V4 firmware - Bright golden yellow color on both screens.
 * V5 firmware - Magenta color on both screens.
 * V6 firmware - Dark blue color on both screens.
 * V7 firmware - The DS/DS lite does NOT crash at all.