Thread: 3790 additional maps on SD card

You already have the Complete Europe Map on SD Card, Remove UK Ire Map duplication not needed.
Are you using NT Map or NTU map ?

Why don't you rename UK & ire to something like UK_&_ire.img1 so that 3790 cannot read it (since you have the full Euro 2014.20 map).
Then you can read this post for the correct placement of the files (especially ASR files).
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Hi ,
Thanks for the reply,I have the NTU maps..
I thought that if I removed the gmapprom.img the nuvi wouldn't boot , read that somewhere ??

I have the full euro map on the SD as gmappsupp.img , so is it OK to remove the gmapprom from the nuvi garmin /system folder ??

Thanks X-trail
Will try that now

This info you've heard is wrong: 'I thought that if I removed the gmapprom.img the nuvi wouldn't boot'. Not so, the map img file naming in not important in the boot process itself and the unit will then read it if the path is correct and the naming convention is correct, 'anyname'.img in Map folder on unit or card, gmapprom.img or gmapsupp.img etc in unit .System folder. The important thing is that the detail map is present and readable.

What you may have heard is that occasionally a unit will report 'no detail maps present' after booting even though there is a detail map on the media card correctly but none on the unit. It can be fixed by putting the smallest detail map you can find on the unit [I use Raratonga if i get that rare problem] and all others on the card. I have a 260W which can't fit a World basemap and all of AU NZ and will only acknowledge it on the SD if some tiny detail map is on the unit.

You problem is almost certainly one of conflict between the maps for some reason. Either entirely remove the UK/IR map or rename it as x-trail suggested then use the full EUU, or put only rest of EU less UK/IR from MapInstall, on the microSD. Do a hard reset/clear NV if still having problems, its the best first aid for any stroppy unit.

I guess you've done a typo with the name of the JCV file in the initial post [D3048120A0]. Correct is D3048120A. You could try moving that back to the JCV folder in .System although your reported path is correct for the microSD. Reset might help that too. Also try another card, garmins are flaky with some 'no-brand' cards.

EDIT: Just noticed this when i merged your 2 posts:

Originally Posted by mallard2

......... I have the full euro map on the SD as gmappsupp.img .......

Try renaming that to 'gmapsupp.img' first if it's in the card's Garmin folder.

You need Nuvi High resolution split screen D3048120A.JCV
sd\Garmin\JCV\D3048120A.JCV

and ASR1 from
[Only registered and activated users can see links. ] post #90
ASR files must be in .System folder in an ASR Folder
Be sure to have all the needed files from Webuptater.

Sorry I cant understand if you have the whole CNEU or just a part.
If it's just a part read:
[Only registered and activated users can see links. ]
Webupdater loads also some ASR files that are needed.

Check if you have en_GB.SRD in /.System/ASR (for voice command to work)
Make sure that voice is set to British English Emily and that text is british english and keyboard is british english.
Hard Reset Nuvi and set to United Kingdom.
If you use Express to Download English it should get all the files (Device Optional Updates Language Files English)

Check inventory to see if your JCV file is listed. (File must be listed in Inventory) if not listed
Recheck your path to the JCV file make sure it is \Garmin\JCV\D3048120A.JCV and not \Garmin\JVC\D3048120A.JCV (common mistake)
Maybe your JCV file is corrupt. Make new download.