Thread: Zumo mapping naming

@Beddhist
Sure, 'gmapprom1' is 9 characters. But it works in the closely related nuvis, and so does the 7 character 'gmapoem' file name [as it does in your zumo]. 8 characters is not a strict requirement either as a mimimum or a maximum in Garmin devices. My [limited] experience with zumos confirms gmapprom1 to be a naming convention for at least some zumos also.

Your reported results with your 660 are different to aeon_flux's results with that of his 550 which he has confirmed against the unit's Inventory page map description names. However, expectedly this is the detail map image file naming which is common to both units:

On unit:
gmapoem.img [not selectable/de-selectable]
gmapsupp.img
gmapprom.img

On SD:
gmapsupp.img only (with no 2nd image available as with older nuvis such as 2xx/W, 465 & 7xx which with latest fw can use both gmapsupp.img and gmapsup1.img in the SD Garmin folder).

Additionally as reported by aeon_flux, gmapprom1 works on 550 in unit memory. Your practical experience is that it doesn't work in your 660, however have you checked the map descriptions in the Inventory page? It's a bit confusing because the map description in that page often doesn't actually intuitively line up with the file name [i.e. Suppmap=gmapsup2.img , Suppmap1=gmapsup.img , PROM2=gmapprom1.img] but here's a likely summary, variable by unit as to naming and location of file, of what might work:

Description in Inventory page = File name

Basemap = gmapbmap.img [Inventory description & File name is common to all Garmin units]

Suppmap1 or Suppmap = gmapsupp.img [File name is common to all Garmin units]
Suppmap or Suppmap1 = gmapsup2.img internally in some units
Suppmap = gmapsup1.img in Map folder of some units [e.g. nuvi 1xxx>], = gmapsupp.img in media card of others

PROM = gmapprom.img [some units], or
PROM 1 = gmapprom.img [some units]
PROM 2 = gmapprom1.img [present only if PROM 1 is present as gmapprom.img]

Dir DB = gmapoem.img [not selectable/deselectable and sometimes doesn't appear in Map Info]

TZMap = gmaptz.img [time zone map, not in all units]

I've compiled the above from memory so it may be incorrect or incomplete, constructive criticism correcting my uncertain recollections is welcome please everyone

Additionally, although not shown in Inventory, described in GarminDevice.xml as '<name>NMaps<name>, anyname.img [e.g. 'CNNTAUNZ2014.10.img'] will work in a Map folder either in root of unit or microSD with modern nuvis from 1xxx onwards [but not in your zumo].

This is aeon_flux's experience with his zumo 550:
SD:
Suppmap = gmapsupp.img [ditto for you]

ZUMO device:
Suppmap1 = gmapsupp.img
Suppmap = gmapsup2.img
PROM = gmapprom.img
Dir DB = gmapoem.img (not selectable...)


Your 660's working internal files [so far, based on your info]:

gmapsupp.img
gmapprom.img
gmapoem.img (not selectable/de-selectable as you've found, [and it may not be even visible in Map Info depending on the actual map])

Additionally, you're stated that none of the file names gmapsup1.img , gmapsup2.img or gmapprom1.img works for you in the unit's Garmin folder which if correct indicates that your 660 supports only 3 detail maps in the unit memory. You also haven't said if you have checked the Inventory page yet. It is unlikely in my experience that your unit is actually limited to 3 detail maps as you've found. I think it should also support a 4th map, file named as either gmapsup2 or gmapprom1.

So can you [or anybody else with a zumo 660] check the Inventory Page and report what it shows?: Press and hold the battery symbol for ~6 seconds>Next>Start Test>More and look what map descriptions you have there.

Additionally, as a cross-check you could load up your unit's Garmin folder with images using all the possible map names using maps previously proven as working images. If need be, download a few little detail maps from here such as Raratonga. Use all five possible files names [gmapoem, gmapprom, gmapsupp, gmapprom1, gmapsup1 and gmapsup2 [only one of the last 3 can possibly work, very unlikely gmapsup1 or 2 will imo, but likely that gmapprom1 will]. Carefully note which map is named what. Put a sixth known map in the SD as well. Next look what's showing in the Map Info screen and check that against what's showing in the Inventory page. That's the definitive and ultimately undeniable test provided you are sure the map images are proven to work. You could check any new downloads named as gmapsupp.img in the SD first to prove they work.

Please post the results.