BlackDoor provides two series, first series looks like iOS 4/5/6 and second series looks like iOS 7/8.
iPod touch 1G has been discontinued and it will not get any official update from Apple.
Last avaible version iOS for iPod touch 1G is iOS 3.1.3.
If you want look on list of features BlackDoor custom iOS firmware, click here.
File name: iPod1-1_3.1.3_7E18-BD6.ipsw
File size: 281.650.087 B
Root partition size: 600 MB
MD5: 3A1A0C74B29A72B8A337030511CA6D86
SHA-1: 7E15349376F567B967207C989DFEB0887FAAB931
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