Always verify your device model number matches exactly before flashing firmware. Incorrect software can "brick" your receiver.
Copy the .bin file directly onto the root directory of your USB stick (do not put it inside a folder unless specified by your manual). Download GX6601 SUPER CONDOR CDN 6700CXHD 02052018 rar
Use your remote to go to Menu > Settings > Software Update (or System Upgrade ). Select Update Method: Choose USB Upgrade or USB Update . Always verify your device model number matches exactly
The device will automatically install the update and restart. Do not interrupt this process . Why Update? dated 02/05/2018 .
Select the .bin file from your USB drive and press OK/Start to begin the process.
This blog post provides the necessary information for the firmware update, dated 02/05/2018 .