*** Short UP arrow to unlock keypad, and PTT button for VoiceDial when keypad is locked :
Firmware : SL45 v56
Author : Yurgen1
0x3B07C4 : 1E -> 21 ... UP arrow unlock keypad
0x3B07C7 : 03 -> 04
0x3B07CA : 1F -> 1E ... PTT button for VoiceDial
0x3B07CE : DA A2 18 4C 48 40 2D 10 -> 0D 03 DA DA EC F6 0D 0F
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