Convert garmin .img pseudo-NT to non-NT? I know it's possible, but how?(SOLVED!!!)

**testlelelala** · 8th March 2014, 07:51 AM

Thanks for accepting the naming idea!

More feedback:

*LBL; NET; NOD are OK!

*In RGN you forget to adjust the offset at x55
in the example it says x52f it should go x208, as you correctly did in the other offsets in RGN, the rest is OK.

*TRE is OK also, there are differences because you change the copyright info for a custom one, but all offsets point to where they should, so NO problem.
Another idea: perhaps you could put there your name and version, instead of garbage, like: r0cker V2.00 or something...or the option to keep the original copyright info (this probably would need more programming as copyright info change between map compilers, like mapear or carteblanche)

thanks

**r0cker** · 15th March 2014, 07:31 PM

Hi, i've fixed the rgn. could you check it again?

Germain

[Only registered and activated users can see links. ]

**testlelelala** · 16th March 2014, 10:07 AM

Checked.

Excellent!!! working perfect.

Tested with a real pseudo-nt map from mapear.
1-Using your extractor version 3,
2-then joining the files with GMapTool as a non-nt img (short header in options),
3-then opening it with GPSMapEdit and saving as a *.mp format without any problem or error.
all working perfect.
same result as the "manual extraction", EXACTLY the same output as a *.mp map in both cases.

**testlelelala** · 19th March 2014, 05:12 AM

Hi Neil
Could you test this map in your garmin NT-unaware device as you did before?
[Only registered and activated users can see links. ]

The map is converted to non-NT from a pseudo-NT original.([Only registered and activated users can see links. ] you can download also the pseudo-nt original to confirm, just in case, that indeed it is not working)
BUT it is compiled with GMapTool enabling 'Short header' option.

please check if it works now.

thanks

**Neil** · 19th March 2014, 10:00 AM

G'day testlelelala & r0cker
Test done, nice work. You should take a bow and have the rest of the day off, relax with a beer or 10 and charge them to Giomen.

test_original.img renamed gmapsupp.img has it's Map Name ZONA 1 read in StreetPilot 2610 Map Information display info screen following boot, but no details in Map Info of Menu and of course no detail map shown on screen, only base map as expected.

test.img as gmapsupp.img is read normally:

Spoiler: pic

Routed normally [as far as i can tell] on a 20.2 km simulated route Buenos Aires to San Fernando.
Congratulations.

PS: Did you make test_original.img 'Read Only' intentionally?

**testlelelala** · 19th March 2014, 06:34 PM

oh great!!! So at least pseudo-NT maps can be converted to regular/old non-NT maps readable even in old garmin units.

Ps: what do you mean with 'read only'? Nevertheless the answer is NO, as i didn't do anything to the test_original.img, it is an original not compiled by me, i didn't touch that map.

**Neil** · 19th March 2014, 10:53 PM

It's of absolutely no consequence, merely my innate insatiable curiosity. I meant read only attribute is checked in windows properties is all. Sorry for the 'red herring':

Spoiler: pic

PS: I found it was read only because i wanted to check both images in BaseCamp before using in the SP but test_original.img wasn't visible because of MS flag '1'. ImgTool showed it as 'read only' when i opened it to change the flag.

**WHISKEYPORTAL** · 15th December 2014, 11:05 PM

Has anybody had luck opening an unlocked NT format img with GME 2.1.78.8?

**newtop** · 17th December 2014, 02:54 AM

Extact from GarminGMPExtract003.zip always 0 Byte(with WinRAR,PowerArchiver,7zip). Any idea?

**catymag** · 17th December 2014, 03:32 AM

Are you using old IE? File is ok, anyway here a link:
[Only registered and activated users can see links. ]

Edit :replaced link because it was old file version

Thread: Convert garmin .img pseudo-NT to non-NT? I know it's possible, but how?(SOLVED!!!)

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