@panoshm

Before you flash this patched FW, make backup of your GPX folder becouse device will reset.
Its safe to flash, work like charm.

After flash, you will get this orange arow that you don't have it now:

Code:
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Look number 12 in above link.

You can also look at your manual and you will see for what is this new feature that withouth this patch work only by default on nuvi 14xx.

Code:
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Look page 13 ( or page 19 of pdf )

You can always go back to original FW, flash original FW in pre boot.
Only difference betwin patched and original FW is that with patched you get new feature " Routes " that original 13xx FW don't have it, all other feature is the same.
So, if you don't plan route in mapsource or basecamp and then send it to device, or if you don't need to create route with multiple waypoints direct on device before you go to trip, then you don't need to flash this FW.

p.s.
This FW is for user that like to create routes in Pc and send it to device before they go to trip or if they like to create route on device with multiple waypoints.