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640 bytes added ,  10:34, 27 August 2009
New page: {{stub}} The NVRAM is a 128 kilobyte SPI Flash memory chip located on the DSi's wifi board. On the DS, this was the system's firmware, plus it included writeable areas for user preferenc...
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The NVRAM is a 128 kilobyte SPI Flash memory chip located on the DSi's wifi board.

On the DS, this was the system's firmware, plus it included writeable areas for user preferences and wifi connection settings. On the DSi, this chip is maintained for backward compatibility, but it is mostly empty.

There is some new unknown data near the beginning of NVRAM which is involved in the boot process. The NVRAM is read very early in boot, before the NAND flash is initialized. An unreadable NVRAM chip will hang the boot process in an infinite retry loop, and errors in this portion of NVRAM will cause a stage1 [[Bootloader]] error.

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