Firmware file does not match your specific chip or board ID.

These are full system backups used to rescue a "bricked" receiver (a device that is completely unresponsive, often stuck on a red light). A full flash dump can restore all system partitions. Resources like "Moonstar DSR 6500 Siyah İnci" provide recovery files specifically for the 1506HV chipset.

1506HV software is often compatible with generic "1506" or "NK" remotes, but if the remote stops working after an update, you may need a firmware version specifically tailored for your remote's protocol.