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DSi ConsoleID info

The ConsoleID is the DSi's CPU ID. It can be used to estimate the SoC build date. There are two main types, 08a* and 082*.
The 08a* ConsoleIDs are earlier in the DSi's lifespan (with the exception of 08a22) and the 082* ConsoleIDs are later.

08a* ConsoleIDs (2008/10 to 2009/09):

  08a16 is introduced around 2008/10 and phased out around 2009/01
  08a17 is introduced around 2008/11 and phased out around 2009/01
  08a18 is introduced around 2008/11 and phased out around 2009/01
  08a19 is introduced around 2009/01 and phased out around 2009/02
  08a20 is introduced around 2009/02 and phased out around 2009/05
  08a21 is introduced around 2009/02 and phased out around 2009/05
  08a22 is introduced around 2009/07 then turned dev only around 2009/07
        It is phased out later that month, but is re-introduced around 2010/06 and phased out around 2010/07
        Looks like old stock used for factory DSis?
  08a23 is introduced around 2009/07 and phased out around 2009/08
  08a24 is introduced around 2009/09 and phased out around 2009/09

082* ConsoleIDs (2009/08 to 2013/05):

  08201 is introduced around 2009/08 and is phased out around 2010/06
  08202 is introduced around 2010/06 and is phased out around 2012/01
  08203 is introduced around 2010/11 and is phased out around 2011/03
  08205 is introduced around 2010/12 and is phased out around 2013/05
  08204 is introduced around 2011/06 and is phased out around 2011/07

All of this research has been obtained thanks to my NAND library.
I only have a limited number of NANDs, so dates may be innacurate by a month or two.