Ensure your USB is formatted to FAT32 and the file is in the root directory.
Most 1509 receivers cannot read NTFS or exFAT formats. The Correct File: Firmware files usually end in .bin . 1509 Dvb-t2 512m Firmware Update
Never unplug your device during an update, as this can "brick" the receiver, making it unusable. Step-by-Step Guide to Updating the 1509 DVB-T2 Ensure your USB is formatted to FAT32 and
Some updates improve the "Auto-Scan" feature to find new frequencies. as this can "brick" the receiver