Difference between revisions of "Bootloader"

Revision as of 20:18, 2 April 2013

When the 3DS does not find the NAND chip, the following error is displayed:

The 3DS' Boot procedure:

2 Seconds - bootrom attempts to initialize the NAND. If the NAND is successfully initialized, the bootrom loads the firmware stored in the NAND FIRM partition which handles booting the rest of the system. The ARM11 kernel loaded from FIRM then launches the CXI ARM11 system modules loaded from FIRM.(Note that the ARM11 kernel does not handle any encryption/RSA verification, this is handled by the ARM9) If the NAND cannot be initialized, (i.e. the NAND chip is not connected/damaged etc) a blue error screen similar to the screen above appears.

3 Seconds - all essential hardware is active. The PM module launches NS, NS then launches the current active menu. For retail units this menu is usually the Home Menu.

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 * 0 Seconds - unit is powered on bootrom begins execution
-* 2 Seconds - bootrom attempts to initialize the NAND. If the NAND is successfully initialized, the bootrom launches the firmware loaded from the NAND [[FIRM]] partition which handles booting the rest of the system. The ARM11 kernel loaded from FIRM then loads the [[NCCH#CXI|CXI]] ARM11 system modules embedded in the kernel. If the NAND cannot be initialized, (i.e. the NAND chip is not connected/damaged etc) a blue error screen similar to the screen above appears.
+* 2 Seconds - bootrom attempts to initialize the NAND. If the NAND is successfully initialized, the bootrom loads the firmware stored in the NAND [[FIRM]] partition which handles booting the rest of the system. The ARM11 kernel loaded from FIRM then launches the [[NCCH#CXI|CXI]] ARM11 system modules loaded from FIRM.(Note that the ARM11 kernel does not handle any encryption/RSA verification, this is handled by the [[FIRM|ARM9]]) If the NAND cannot be initialized, (i.e. the NAND chip is not connected/damaged etc) a blue error screen similar to the screen above appears.
 * 3 Seconds - all essential hardware is active. The [[Process_Manager_Ports|PM]] module launches [[NS]], [[NS]] then launches the [[Configuration Memory#ACTIVEMENUTID|current active menu]]. For retail units this menu is usually the [[Home Menu]].