Dear KUNIX..i'm here because i want to say THANK YOU for your tutorial here,i bricked my Nuvi 2465 on 21/03/2013 @ 2230Hrs,and post the problem to this forums at this thread [Only registered and activated users can see links. ],after thats sis CATYMAG linked me to this thread,i read it carefully ,and the hard step is to understand how to entering the pre-boot mode and get it linked or detectable again by my PC..after several try and error,i'ved succesfully restore back my Nuvi 2465 to its original conditions.So here i'm glad to say THANK YOU VERY MUCH for your post and sharing this with others like me who was very panic after bricked my gps unit..even this is not only my gps unit..but it really hurt my heart when its was bricked...after all...i'ved solved my problem in about 1 1/2 hour after continue reading and keep trying...what i want to say was..this procedure worked well like charm with Garmin Nuvi 2465....so any of this 2465 owner who bricked your unit..just keep reading.