Dear seniors

need your guidance on how to flash my US unit to SG/MY in order to have JVC and Lane Assist?

below is the spec:
nuvi 765V11 4GB P1 DH04_R 330MHZ
PCB P/N 105-01402-00
PCB VERSION 11
FLASH P/N 575-A0104-XX
FLASH S/N 0333D7C4
VOICE CHECKSUM 0x433ADB00
VOICE COUNT 65

really appreciate your guidance