You are in luck with the w710i. See post 71437 (link) , where it shows:
; W710I SW-R1GB001
; Clear blast at startup Dictaphone
; Remove voicerecoreder beep
(C) SiNgle
(p) 2007KrasH
+44140000
1863D94: 14 00
1863D78: 1E 00 00
I also found some other information (link) on the w710i.
I found the above information from here (link).

Although I have NOT been able to find a patch for the k550i in the list of patches (link) for the k550i. Can anyone direct me to a patch or make one (please)?

Regards,
Delafield