Copy the firmware file (e.g., flash.bin ) directly to the root of the USB drive. Not inside a folder.
On your PC, right-click the USB drive → Format → File system: FAT32 (not exFAT or NTFS). Allocation unit size: Default. Click Start. 1509 Dvb-t2 512m Firmware Update
Go to Menu → Installation → Factory Reset or Restore Defaults. Enter the PIN (usually 0000 or 1234). This clears old channel data that may conflict with the new firmware. Copy the firmware file (e
Plug the receiver back into power. Many 1509 models detect the USB file on boot and automatically show “UPdt” or “Updating...” on the front LED display. If this happens, skip to Step 7. Copy the firmware file (e.g.