Thread: Enable features in your nuvi 12xx, 13xx and 14xx - JCV, LA, TTS

I think you are misunderstanding what both Giomen and dasilvarsa are saying. I guess a picture is worth a thousand words, and two are even better.

Portion of a US 1300 GarminDevice.xml prior to modding logo [original splash D1340-00]:

Spoiler: pic

After modding [splash now D1340-50]:

Spoiler: pic

Nothing is read by Garmin sw or it's servers other than the device's GarminDevice.xml as clearly stated by dasilvarsa. The device itself writes to the .xml files on each boot cycle to update it from it's own internal information. In the above case the later xml refects the splash of 1340-50 as would yours. The logo bin [16.bin] itself is not directly accessed by GE or WU etc. Even full firmware is only known by the software version written in the xml file, e.g.:
<Model><PartNumber>006-B0972-00</PartNumber><SoftwareVersion>620</SoftwareVersion><Description>nüvi 1300</Description></Model>

You can also open the xml in a web browser to more clearly see the info. The above images are from IE.

NOTE: If you want to prove this to yourself, put the GarminDevice.xml in a Garmin folder on a usb stick, change the software version in the xml with WordPad or any other text editor to one version below the current [eg. change 620 to 610], open WebUpdater and it will be recognised as a Garmin device ['nuvi 1350 is connected'] and then will dl the current V6.20 as GUPDATE.GCD to a .System folder on the stick. Proof positive that the Garmin software does not access anything other than the xml file.