Thank you very much for ur help! this is very usefull for me (im downloading the new maps now, I will reply later if my problem was fixed or not).

I have a couple cuestions here (maybe are stupid cuestions but Im new in this, I dont understand everithing well and my english is not good as I wish):

1.-I just want to know what are the D315600.DB, D2329070A.G2S, and ASR/SRX FILE´s, how do I install and If they are usefull to my nuvi 1300N.

2.- I have lifetime NA maps updates for free, do I need to download the CN North America NT 2012.30 UNLOCKED IMG from the link above? , and what if later I decide to update that maps from the garmin webpage, this process will lock or disable any maps?

3.- what´s the difference between CN North America NT 2012.30 UNLOCKED IMG and gmap3d.img Unlocked (from the suggested link)

"gracias amigos" for your help and I wish a great new year from mexico