Thread: gmapique

Originally Posted by lovelypippy

i copied a map CN2015.10 from nuvi C265 C want to copy to Micro SD card....but couldn't unzip it ....i tried gimgunlock ...nothing works...
thanks
............................
i just want to put it on micro sd card for another garmin nuvi 1455...thanks

Sorry mate but do you REALLY know what you are doing???
C265 and 1455 are two very different devices. 1455 is old and simple and can NOT read files that C265 reads!

Here are the files of China CN NT 2015.10 (CH) for the two devices, everything is DIFFERENT !!!


Roadmap file is smaller for the C265 because it also has a additional "special" file, gmapique.img for Indexing.

JVC files are also different, C265 uses SGVZ images (Scalable Vector Grafics-zipped) and 1455 uses PNG images.
SGVZ images use as layers .jpg pictures for the background and .png pictures for the arrows.
For the road signs there are no pictures in the file, they are created as "painted polygons" and the letters are written as "fonts"
1455 uses a JCV file with multi-layer images, that are made of only .png pictures (as semi-transparent layers), one for night or day sky, one for the background, one for the road signs+letters and one for the arrows.
This is why 1455 cannot display the letters on the road signs, because there are no pictures of the letters in C265 JCV file.
By a strange coincidence, 1455 can display a multi-layer JCV image (out of the C265 JCV file), using the background .jpg and the arrow .png and even "paints" the road signs, but when it comes to letters, it can't "draw" them on the road signs.

So if you want your 1445 to function properly, go to [Only registered and activated users can see links. ] and download 3218866.zip file that is made for nuvi 1455.
Unzip it, unlock gmapprom.img, delete all C265's files and copy the correct files to 1455.