DSi Pre-X4 Prototype

An image of a DSi prototype was posted on GBAtemp on November 3rd 2019, in the same thread discussing Japanese Nintendo DSi Prototype (also known as CPU-X4).

A video was also posted showing that the unit has no menu. It autoboots into an inserted cartridge, similar to CPU-X4.

Unit differences

• Just like CPU-X4, there are no prints for "POWER", "START", "SELECT", or for the power, charging or wireless communications icons.
• The unit is black and white, but not in a way so it looks like a DSi Panda.
• The buttons used are recycled from the Nintendo DS Lite.
• The power button (can be heard in the video) is more clicky than the final.
• Next to the A button, there's a small notch that's missing. This might be a Micro SD card slot.