DO YOU NEED TO UPDATE OR WILL IT STILL WORK?
Most updates fall into 2 categories: a) Firmware update. Corrects a problem(s) found in the firmware since the previous version that may provide more reliable operation, additional features, removal of features or other changes the manufacturer wants, and b) Maps update. Updates the installed maps.
In the case of "a" above, many times there is an explanation of the firmware update. Longer battery life, faster time to fix, additional bluetooth cellphone support, etc. It is best to review the list of changes to see if you want to upgrade or not.
In the case for "b", streets change, close and new ones pop up all the time. Using the latest maps will minimize the chance the you'll be sent over a road that either no longer exists, or has been rerouted to somewhere else. A map update may also rely on updated firmware (in "a") or might even automatically update firmware during the process.
Generally, updates almost always solve more problems than they create and add features rather than strip them. Map updates are nice to have - but you may need to balance the need for them with the cost of them. Not performing an update should not make the unit fail to work; unless there is something happening on a much larger scale than just your particular brand / model.
I hope this helps & good luck. Please rate my reply. Thank you.
on Mar 30, 2011