--- layout: devinfo app: TWLBoardChecker altname: BOARD category: [TWL EVA] sequence: TRUE redirect_from: /dsidev/twlboardchecker.html group: true preview: /preview.png --- BOARD is the first phase of DSi testing in the factory. A bare DSi motherboard would be placed in a special box, and hardware tests would be performed to ensure there are no shorts or other faults. All of these tests would be controlled externally by a DS lite running the TWL CPU Board Sequencer app. While we don't have photos of the DSi testing hardware, you can see a similar thing with the CTR BOARD process below, where a DSi would control tests on a 3DS motherboard.