Este es uno que para mi punto de vista es muy util, los offsets comentados son del w580
Código:
;W580 SW-R8BE001    ->    W380 SW-R11CA002
;Ability to cancel the sending of SMS-message
;When sending a window "Sending message"
;to this window is added to the "Cancel" on the right softkey
;+is added to the "Close" on the left softkey
;Ver 2.0
;(c) Joker XT
;(p) anarkes

include "x.inc"

         ;W380_R11CA002    ;W580_R8BE001
patch00 = 0x20E3484C    ;0x4505AA2C
newcode = 0x21A94B80    ;0x44294B80

org patch00

        LDR     R7, off_4505AA34
        BLX     R7
        B       0x20E34858    ;0x4505AA38

        DCB 0xFF
        DCB 0xFF

align 4
; ---------------------------------------------------------------------------
off_4505AA34    DCD newcode+1
; ---------------------------------------------------------------------------

org newcode

        PUSH    {R1-R7,LR}
        LDR    R2, off_44294BD0
        LDR    R0, [R4,0x18]
        LDR    R1, dword_44294BCC
        LDR    R7, off_44294BB8
        BLX    R7
        LDR    R2, dword_44294BD4
        LDR    R0, [R4,0x18]
        LDR    R1, dword_44294BCC
        LDR    R7, off_44294BBC
        BLX    R7
        LDR    R2, off_44294BC4
        LDR    R0, [R4,0x18]
        LDR    R1, dword_44294BC8
        LDR    R7, off_44294BB8
        BLX    R7
        LDR    R2, dword_44294BD8
        LDR    R0, [R4,0x18]
        LDR    R1, dword_44294BC8
        LDR    R7, off_44294BBC
        BLX    R7
        LDR    R0, [R4,0x18]
        LDR    R1, dword_44294BDC
        LDR    R7, off_44294BC0
        BLX    R7
        LDR    R0, [R4,0x18]
        POP    {R1-R7,PC}

        DCB 0xFF
        DCB 0xFF

align 4
; ---------------------------------------------------------------------------
off_44294BB8    DCD 0x211281D8+1    ;0x45381700+1 ;GUIObject_SoftKeys_SetAction
off_44294BBC    DCD 0x21128250+1    ;0x45381778+1 ;GUIObject_SoftKeys_SetText
off_44294BC0    DCD 0x2111BB48+1    ;0x45374F90+1
off_44294BC4    DCD 0x20E34889    ;0x4505AA69
dword_44294BC8    DCD 0xFBF
dword_44294BCC    DCD 0xFA0
off_44294BD0    DCD 0x20E16EA5    ;0x4503CA45
dword_44294BD4    DCD 0x973    ;0x89E ;Cancel
dword_44294BD8    DCD 0x383    ;0x375 ;Close
dword_44294BDC    DCD 0x7D0    ;0xFA0 ;Time
; ---------------------------------------------------------------------------