How do i update the toyota chr's software/firmware?

Updating the Toyota C-HRS software firmware is fairly simple and pretty fast. Make sure that Your car is switched on then switching the Audio system on. Choose the Apps button that takes You to the dash. On the USB port, insert the USB stick. The screen will prompt You to upgrade the progRam after a slight pause. Choose 'Yes,' then choose 'Confirm'. Towards the end of the update, for a few seconds, the screen will go blank. It's totally usual here. At this time, do not turn Your vehicle off or try to drive Your Toyota. It will ask whether You want to reinstall the kit once the device has been upgraded. Choose "No and detach the USB stick.