If you need to manually update your Wall Connector's firmware,
you can download this older firmware version (21.18.1) from Tesla using the download button below.
However this is an
outdated firmware version, the newest firmware version available for download is
23.24.4
If the official Tesla download link is broken or unavailable, you may download a unofficial version from Wall Monitor
here.
You can do this at your own risk, Wall Monitor takes no responsibility for issues arising from downloading this version.
Tesla publishes the latest offline firmware version
here.