The OTP programming voltage (Vpp) requires a stable 7.5V. If your programmer supplies 7.2V or 7.8V, the bits write incorrectly. Use an oscilloscope to verify.
Navigate to Menu > Settings > Version/Information on your receiver. The "Hardware Version" must contain 1506T-VV10 for this software to be compatible. Installation Guide (USB Method) Follow these steps to safely install the verified software: Format USB Drive: Use a USB flash drive formatted to FAT32 . dvbs1506tvv10otps0 software verified