If you have a corrupted original SD card and a backup image (created before corruption), you can use Toyota Techstream + a genuine SD card programming tool. This requires:
: Plug the USB into your computer, open Naviextras Toolbox, and follow prompts to download and install available content. Toyota Sd Card Software Download REPACK
: For modern systems, you can check for updates directly in your vehicle by going to Software Update Physical Replacement If you have a corrupted original SD card
Stick to legitimate sources to ensure your vehicle's systems and your personal data remain secure. open Naviextras Toolbox