Are you trying to fix a or just updating channels ?
Download the .bin file and move it to the root directory (not inside a folder) of the USB drive. Insert the USB drive into your receiver. Go to Menu > Settings/System > Upgrade or USB Upgrade . Select the .bin file from the USB drive. Download Cobra IPTV 1506 bin
Use your current menu options to dump/backup your current firmware to a USB drive before updating, in case you need to revert. How to Download and Install Cobra IPTV 1506 Bin Find the Correct Firmware: Are you trying to fix a or just updating channels
The receiver should restart automatically. Once it restarts, it is recommended to perform a "Factory Reset" in the menu to ensure the new firmware works properly. How to Identify a 1506G vs. 1506T? often features 8MB flash memory. often features 4MB flash memory. Installing 1506G software on a Go to Menu > Settings/System > Upgrade or USB Upgrade