Your Omnia.11 must be running version 1.5 or 1.6 in order to update to version 3.0.
ATTENTION! If your unit is running version 1.1(119), you will need to update to version 1.2(51) first, boot into it and then update to version 1.5 using the new compact flash card ordered below. Here are links to the v1.2 update and instructions:
If it is running a version prior to v1.1 (such as v1.03) please contact customer support for assistance.
Version 1.5 was released in 2014 as a free compact flash card update. This new CF card is required in order to update to version 3.0.