Also, mention that these discs might be specific to certain regions because Toyota's ECUs are region-specific due to emissions and compliance laws. So, a disc from one country might not work in another.
: Ensure you download the software specifically for your unit. An NDDN-W57 disc may not work for an NDDN-W58. toyota nddnw58 nddnw57 boot program disc
There are three reasons you cannot simply buy one on Amazon: Also, mention that these discs might be specific
: The LOADING.KWI file must be placed in the root directory of the disc. Do not place it inside any folders or subfolders, as the head unit will not be able to locate it. An NDDN-W57 disc may not work for an NDDN-W58
The Toyota NDDN-W57 & NDDN-W58 Boot Disc: Your Recovery Guide
The system will load the boot program. You will see a text interface (white text on black background) showing processes like: