Flashing firmware for a "Tiger" box onto a "Mediastar" box will likely fail or cause permanent damage.
If your satellite box is stuck on a "Boot" loop, follow these steps to use the recovery method: Gxrom.bin Download
Copy it directly to the root of the USB drive (do not put it inside any folders). Turn off the receiver's power. Insert the USB drive. Flashing firmware for a "Tiger" box onto a