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Line 1: − == Stage 1 == − − [[Image:boot-stage1-error.jpeg|frame|When the Stage 1 bootloader (in ROM) fails, it displays a 32-bit hexadecimal number on the top screen.]] − − The first stage of the DSi's bootloader lives in ROM, presumably on the CPU die. It loads further encrypted+signed stages from [[NAND]] flash, starting with a plaintext offset table in the sector at offset 0x200. − − Not much is known about this bootloader yet, but it presumably knows how to: − # Initialize the encryption hardware − # Read the contents of [[NVRAM]] − # Initialize both LCDs − # Read blocks (but not files) from the [[NAND]] flash − # Perform some variety of integrity check on all data it reads (signature, CRC, ?) − # Display basic hexadecimal error codes − # Possibly factory-programming the [[NAND]] flash? − # Might also do basic power-on self test of peripherals − − Known error codes: − − {| border="1" cellpadding="3" cellspacing="0" − ! Error Code !! Description − |- − | 0000FE00 || Error communicating with NAND chip. (It's missing, CLK is shorted, etc.) − |- − | 0000FEFC || Integrity error in first block of Stage 2 (address at 0x220) − |- − | 0000FEFD || Integrity error in second block of Stage 2 (address at 0x230) − |- − | 0000FEFE || Boot sector integrity error (Sector 0x200 not valid), or error in [[NVRAM]] contents. − |} − − == Stage 2 == −
Removed boot0 stuff
[[Image:boot-stage2-error.jpeg|frame|This may have been a Stage 2 bootloader error.]]
[[Image:boot-stage2-error.jpeg|frame|This may have been a Stage 2 bootloader error.]]