PicoFlasher: read and write Xbox 360 NANDs with a Raspberry Pi Pico

PicoFlasher is open-source firmware that turns a Raspberry Pi Pico into an Xbox 360 NAND programmer. It works with the Windows tool J-Runner with Extras (or J-Runner-Pro) for backups, restores and JTAG or RGH installs, and the ConsoleMods wiki rates it as one of the fastest NAND programmers while being much cheaper and easier to find than most. The original port is by balika011. The 15432 fork used here wires seven lines to the console's SMC programming header (GP0 SPI_MISO, GP1 SPI_SS_N, GP2 SPI_CLK, GP3 SPI_MOSI, GP4 SMC_DBG_EN, GP5 SMC_RST_XDK_N and GND) and can also reach the 4 GB flash on Corona consoles over the same SPI route. In October 2026 Tom's Hardware covered Joshua Kennedy finishing a reset glitch hack he had shelved since 2017: one Pico running PicoFlasher dumped his NAND, and a second Pico programmed Octal450's timing files onto a Matrix CoolRunner glitch chip. If you have a Raspberry Pi Pico 2, the newer MODI Pico 2 Flasher X360 TURBO fork targets RP2350 boards such as the Waveshare RP2350-Plus, adds a J-Runner integration package and publishes its own read and write timings. Whichever you use, read the NAND twice and compare before writing anything.