1 pointHi Roxy, Please remember that file you see for OS 7.1 is made for ATV495Pro HDR, which is totaly different chipset, and it is not the same box and model as what you have. When you get the error "stvm9" that means your motherboard is also different. We do not have OS 7.1 for ATV495Pro. The Latest Firmware that is available is OS 5.1. There are no more OS development for ATV495Pro. Please do not confuse the ATV495Pro with ATV495Pro HDR.