If the SMB share is active you can use the Kodi file manager to copy the TVH add-on config folder to a location accessible via the SMB share to back-up the data. Then you can nuke the setup and restore the TVH files (using SSH) later.
CTRL+ALT+F3 will not work as we're not using Xorg/X11.
If this is a WP2 box not a WP(1) as previously stated, which LE release is installed?