*Flash your device at your own risk*

(07/31/2012) [SSDeejayCrazy Stock (V21A)

(07/30/2012) [SSChuSoft 3D ROM 4.0.8 +

(07/17/2012) [SSAcura Team 3D Max 2 v3.1

(07/12/2012) [SSThiaiZO3D V2.8 (V21E)

(07/04/2012) [SSThe Promethius Project Version 1.5 21E (2.3.5)

(07/03/2012) [SSThiaiZO3D PRADA V2.6.1 (V21a)

(06/30/2012) [SSSuperStock v1.1.0 (V21E)

(06/28/2012) [SSCyanogenMod 7.2+ v1.6 (2.3.7)

(06/19/2012) [SSMokee OS v2.0 (2.3.7)

(06/16/2012) [SSCyanogenmod V7.2 (2.3.7)

(06/05/2012) [SSHyperion V1.0 (V21D/V20E)

(05/26/2012) [SSXBSA P920 (V21E) & SU760 (V20F)

(05/19/2012) [SSLewa ROM 1.0 (port)(2.3.7)

(05/05/2012) [SSDNA_GB 3.3.3 (V21E)

 

 

 

All links are from xda-developers forum*

2.3.5 – V21A, V21E