I hope this helps, in case anyone else runs into the same issue.
The only apparent solution is to connect an external Chromecast device (with the latest firmware installed) to one of the TV's HDMI ports, and disable the built-in Chromecast. So, unfortunately, the built-in Chromecast is now unusable when casting from any app requiring the latest Chromecast firmware (such as the 'Prime Video' app from Amazon). When I called Toshiba today, I was told they have no plans to provide any additional firmware updates for the built-in Chromecast hardware on this model. However, this firmware version is over two years old and is the same one we already have installed on the TV. media server for personal streaming movies tv music photos in mobile app or browser for all devices android iOS windows phone appletv androidtv smarttv and.
The Toshiba website does actually have the firmware available for download for this model, which can be loaded to a USB drive and installed (see ).
5 - Fix Toshiba usb/hdd not detecting problem When toshiba is not detecting or not working, here are some fixes that you may try to get it recognized no matter it is toshiba internal hard drive or external hard drive, usb stick or memory card not detected. I have a similar Toshiba model with the same firmware version installed. If you want to update toshiba hard drive driver, or toshiba usb driver update, its the same way in the above photo.
