The new firmware requires a bit of explanation. It’s a production release required by a new processor in the tuner; there is no reason to use the update for existing 232-ATSC+1 tuners that have version 4.15 HD Load and version 1.14 S37 firmware – no new features are added. To check your firmware versions, press the red Setup button, press the Up or Down key to see the Firmware: menu. The first view shows the S37 version, click the Right button twice to see the HD Load version.
If you do use the new 5.02 HD Load and S37 1.17 firmware, you must install both updates.