Send the following on WhatsApp
Continue to ChatJvc Kw-v520bt Firmware Update - https://malayharmo.blogspot.com/2021/02/jvc-kw-v520bt-firmware-update.html
Jvc Kw-v520bt Firmware Update - https://malayharmo.blogspot.com/2021/02/jvc-kw-v520bt-firmware-update.html