My dream 7020 start to give very bad flickering and when I unplug the power for a while the things come back to normal for 2-3days and its start with same flickering as I doubt the issue related to LNB and cable as I test it with DM-500s for more than one week without any problem, I flashed with latest ****** 4.6 and with the same issue, and note that HD 160GB hocked, some technician told me to disable it and the problem still existed.