17tdt1eu-da31 Software Update

If both OTA and USB methods fail (e.g., due to a corrupted bootloader), visit a certified service center.

There are two primary ways to install the latest software for this unit:

Start your car and keep it running in a well-ventilated area (or perform this during a drive). Plug the USB drive into the USB port of your vehicle. 17tdt1eu-da31 Software Update

Some hardware revisions (da31 suffix denotes a hardware change) may be incompatible with older firmware. Check your board’s silkscreen.

A: Officially, no – the system rejects older versions. However, experienced users have succeeded by manually editing the version number inside the .kwi file to make it appear “newer” than the installed one. This is not recommended for non‑experts. If both OTA and USB methods fail (e

Access the MyToyota e-Store or your regional Toyota portal to download the update files. Installation Steps:

Beyond bug fixes, this update introduces tangible new functionalities that enhance daily usability. Some hardware revisions (da31 suffix denotes a hardware

While Toyota rarely releases exhaustive public changelogs for every minor version, user reports and technical bulletins suggest that the DA31 update focuses on:

| Issue | Workaround | |-------|-------------| | Rare Bluetooth pairing reset after update | Re-pair devices once. Fixed in next delta. | | Custom udev rules may be overwritten | Backup rules before update; reapply after. |

If both OTA and USB methods fail (e.g., due to a corrupted bootloader), visit a certified service center.

There are two primary ways to install the latest software for this unit:

Start your car and keep it running in a well-ventilated area (or perform this during a drive). Plug the USB drive into the USB port of your vehicle.

Some hardware revisions (da31 suffix denotes a hardware change) may be incompatible with older firmware. Check your board’s silkscreen.

A: Officially, no – the system rejects older versions. However, experienced users have succeeded by manually editing the version number inside the .kwi file to make it appear “newer” than the installed one. This is not recommended for non‑experts.

Access the MyToyota e-Store or your regional Toyota portal to download the update files. Installation Steps:

Beyond bug fixes, this update introduces tangible new functionalities that enhance daily usability.

While Toyota rarely releases exhaustive public changelogs for every minor version, user reports and technical bulletins suggest that the DA31 update focuses on:

| Issue | Workaround | |-------|-------------| | Rare Bluetooth pairing reset after update | Re-pair devices once. Fixed in next delta. | | Custom udev rules may be overwritten | Backup rules before update; reapply after. |