Beta Firmware/iPod touch/4.x

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iPod touch (2nd generation)

Version Build Keys Release Date Download URL File Size
4.0 beta 8A230m iPod2,1 8 April 2010 ? 320,899,292
4.0 beta 2 8A248c iPod2,1 20 April 2010 ? 324,553,033
4.0 beta 3 8A260b iPod2,1 4 May 2010 ? 330,073,091
4.0 beta 4 8A274b iPod2,1 18 May 2010 ? 324,314,892
4.0 GM[1] 8A293 iPod2,1 7 June 2010 ? ?
4.1 beta 8B5080c iPod2,1 14 July 2010 ? 343,163,477
4.1 beta 2 8B5091b iPod2,1 27 July 2010 ? ?
4.1 beta 3 8B5097d iPod2,1 3 August 2010 ? ?
4.2 beta 8C5091e iPod2,1 15 September 2010 ? 363,496,695
4.2 beta 2 8C5101c iPod2,1 28 September 2010 ? 366,143,810
4.2 beta 3 8C5115c iPod2,1 12 October 2010 ? 364,755,569
4.2 GM 8C134 iPod2,1 1 November 2010 ipod2,1_4.2_8c134_restore.ipsw 363,581,294
4.2.1 GM 8C148 iPod2,1 18 November 2010 iPod2,1_4.2.1_8C148_Restore.ipsw 363,553,480

iPod touch (3rd generation)

Version Build Keys Release Date Download URL File Size
4.0 beta 8A230m iPod3,1 8 April 2010 ? 370,559,938
4.0 beta 2 8A248c iPod3,1 20 April 2010 ? 361,012,491
4.0 beta 3 8A260b iPod3,1 4 May 2010 ? 366,655,139
4.0 beta 4 8A274b iPod3,1 18 May 2010 ? 361,195,876
4.0 GM[1] 8A293 iPod3,1 7 June 2010 ? ?
4.1 beta 8B5080c iPod3,1 14 July 2010 ? 379,395,118
4.1 beta 2 8B5091b iPod3,1 27 July 2010 ? 389,377,495
4.1 beta 3 8B5097d iPod3,1 3 August 2010 ? ?
4.2 beta 8C5091e iPod3,1 15 September 2010 ? 407,664,776
4.2 beta 2 8C5101c iPod3,1 28 October 2010 ? 410,329,641
4.2 beta 3 8C5115c iPod3,1 12 October 2010 ? 408,995,965
4.2 GM 8C134 iPod3,1 1 November 2010 ipod3,1_4.2_8c134_restore.ipsw 408,113,835
4.2.1 GM 8C148 iPod3,1 18 December 2010 iPod3,1_4.2.1_8C148_Restore.ipsw 408,118,620
4.3 beta 8F5148b iPod3,1 12 January 2011 ? 435,512,020
4.3 beta 2 8F5153d iPod3,1 19 January 2011 ? 434,489,176
4.3 beta 3 8F5166b iPod3,1 1 February 2011 ? 432,094,263
4.3 GM 8F190 iPod3,1 3 March 2011 ? 433,166,165

iPod touch (4th generation)

Version Build Keys Release Date Download URL File Size
4.2 beta 8C5091e iPod4,1 15 September 2010 ? 646,521,638
4.2 beta 2 8C5101c iPod4,1 28 September 2010 ? 650,627,506
4.2 beta 3 8C5115c iPod4,1 12 October 2010 ? 648,122,692
4.2 GM 8C134 iPod4,1 1 November 2010 ipod4,1_4.2_8c134_restore.ipsw 638,217,655
4.2.1 GM 8C148 iPod4,1 18 November 2010 iPod4,1_4.2.1_8C148_Restore.ipsw 638,177,119
4.3 beta 8F5148b iPod4,1 12 January 2011 ? 698,500,012
4.3 beta 2 8F5153d iPod4,1 19 January 2011 ? 695,640,594
4.3 beta 3 8F5166b iPod4,1 1 February 2011 ? 693,822,673
4.3 GM 8F190 iPod4,1 3 March 2011 ? 684,595,902

Notes

  1. ^ a b Included Game Center; the public version did not.