The unit will likely reboot once or twice. This is normal. You may see the XZENT logo flash, followed by "Erasing cache" or "Installing system update."
Do not confuse the M.I.C. app update with the full mentioned above. You need both.
A Windows or Mac computer with an internet connection to download and extract the update files. xzent x-422 software update
A Windows PC is required to download and extract the files.
Fixes for Bluetooth streaming or radio reception issues. The unit will likely reboot once or twice
Smoother pairing with newer iOS and Android versions.
: Official update files are available in the XZENT Product Archive . Step-by-Step Installation app update with the full mentioned above
If the website asks for a serial number, locate it on a sticker on the top or bottom casing of the head unit (you may need to pull the unit slightly out of the dashboard).