After using the boot disc, you might be greeted by a password screen. This requires an ERC (presumably Electronic Recovery Code) Unlock Code.
Resetting a Toyota NDDN-W57 navigation system typically refers to one of three different actions: performing a to fix minor glitches, a factory reset to clear all personal data, or a security reset (ERC code unlock) if the unit is locked after a battery change. 1. Simple Soft Reboot nddn-w57 reset
Navigate back to the ERC screen where you found your serial number. After using the boot disc, you might be