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: C may stand for Chiheisen ("horizon" in Japanese, the O3DS's codename being "Project Horizon").
: C may stand for Chiheisen ("horizon" in Japanese, the O3DS's codename being "Project Horizon").
:: Not true, Horizon refers to the OS.
:: Not true, Horizon refers to the OS.
: CTR stands for Citrus.
== Hardware ==
== Hardware ==
=== What is the PDN abbreviation? ===
=== What is the PDN abbreviation? ===
: Power distribution network
: PowerDowN
=== How does Nintendo reflash bricked systems? ===
=== How does Nintendo reflash bricked systems? ===
=== What was the problem in "initial program loader" that was mentioned in an FCC filing by Nintendo for 2DS? ===
=== What was the problem in "initial program loader" that was mentioned in an FCC filing by Nintendo for 2DS? ===
'''Background:''' http://www.neogaf.com/forum/showthread.php?t=814624&page=1
'''Background:''' http://www.neogaf.com/forum/showthread.php?t=814624&page=1
This could be referring to the ROM on the AR6K wireless chip:
* Some 2DS units have the WiFi chip soldered directly to the board (such as the 2DS in this FCC filing: https://fccid.link/BKE/FTR001N), and some do not.
* The AR6K ROM only acts as an initial loader.
* Maybe some AR6K-family devices allow signature checks on the firmware? Or maybe some registers weren't write-once but should have been?
=== What did SVC 0x74 in the ARM11 kernel do before it got stubbed? ===
=== What did SVC 0x74 in the ARM11 kernel do before it got stubbed? ===
=== What is the PTM abbreviation? ===
=== What is the PTM abbreviation? ===
: Power/time management
: PlayTime Management
=== Why is the DTCM not used anywhere except bootrom? ===
=== Why is the DTCM not used anywhere except bootrom? ===
'''Theory:''' NtrBoot another time
'''Theory:''' NtrBoot another time
=== Why are there 4 stubbed syscalls named SendSyncRequest1-4? ===
=== Why are there 4 stubbed syscalls named SendSyncRequest1-4? ===
=== Is there a deterministic formula for calculating the Movable.sed KeyY high u64? ===
'''Background:''' We know now that the high 4 bytes of KeyY can be reliably estimated to be 1/5th of the LocalFriendCodeSeed (low 8 bytes of KeyY), which is close enough to brute force. However, the actual value is usually about 0-4000 units off the actual high u32 of the KeyY (called msed3 in the seedminer implementation). Could there possibly be a deterministic formula given this 1/5 ratio is so close to the correct value? It's difficult to imagine this is just a coincidence.