[Tutorial] Get Garmin Product ID (Map ID) from gmapsupp.img
To get the Product ID (a.k.a. Map ID) of a Garmin map product from an existing gmapsupp.img file, follow these procedures.
1. Open the map gmapsupp.img by a binary file editor such as UltraEdit. ;
2. Search for the ASCII string “GARMIN MDR”, quotes not included.
3. If not found, quit, nothing can be done. Otherwise, scroll back one or two pages to see if it contains the name of a map product similar to the string in blue polygon in the attached picture.
4. If no name of map product found, go back to step 2 above and find next match.
5. Count 6 bytes back from the first character of the map product name in blue polygon and copy down the first two bytes (as seen in red box).
6. Reverse the values of the two bytes, enter that to your scientific calculator in hex mode and convert that to decimal.
For example, in the picture the first two bytes are “C5 00″. Reverse that to get “00 C5″ then enter “00C5″ (with no space and quotes) to your calculator in hex mode and convert that to decimal. You should get the answer 197.
(6 votes, average: 3.00 out of 5)
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January 31st, 2008 10:14
[...] [Tutorial] Get Garmin Product ID (Map ID) from gmapsupp.img [...]
March 14th, 2008 15:05
thanks! it worked for me.
March 19th, 2008 07:12
[...] [Tutorial] Get Garmin Product ID (Map ID) from gmapsupp.img [...]
March 23rd, 2008 08:19
thanks alot!!! its works, but somehow I’m confused about step 2. If I found the ASCII string “GARMIN MDR” what should I really do??? please guide me…
March 23rd, 2008 15:49
@Bernard I think you can try or you can find other way to make it unlock. i post those information before
June 20th, 2008 12:08
Thank you for the clear explaination.
July 15th, 2008 17:28
I bought Garmin C330 last year I tried to update 2009 Map and it ask me product ID key. I will apriciated if you can help me with that. thank you.
July 16th, 2008 19:12
you can not found it by the way i have offered?
September 17th, 2008 04:07
For example you installed a map which needs the unlock key. Is there a way how to find this unlock key for the map? Like the map id in the same way?
September 17th, 2008 11:25
para los mapas de argentina cual es el map id
September 19th, 2008 09:50
Hi
I am trying to get the map id for VEU709L and VEU708L and VEU53R
But it seem so strange that if i use ultraedit as descrived her, i get very high numbers
Can you help ?
00000020h: 00 00 00 00 8E F5 A3 AA 00 00 00 00 00 00 00 00 ; ….Žõ£ª……..
00000030h: 00 00 00 00 00 00 00 00 00 D7 07 0C 1D 05 2C 1A ; ………×….,.
00000040h: 08 47 41 52 4D 49 4E 00 00 56 45 55 37 30 39 4C ; .GARMIN..VEU709L
00000050h: 2D 53 6F 75 74 68 20 4E 6F 72 77 61 79 80 00 20 ; -South Norway€.
00000060h: 00 09 06 FF FF 20 20 20 20 20 20 20 20 20 20 20 ; …ÿÿ
September 20th, 2008 00:00
hey this is not the only way to unlock it
December 21st, 2008 19:26
This site is nothing but cut and paste. Don’t take credit for something that isn’t yours. One more thing is try to be genuine and learn the language.
December 22nd, 2008 03:06
@Calvin hi， i will try, because at first i just want to help me remember it and easy for myself.
January 29th, 2009 17:49
What is the Garmin Worldmap ID
May 12th, 2009 07:49
What is the map IP for UZBEKISTAN? is there anyone knows?
July 20th, 2009 20:44
•City Navigator® North America NT 2010 NT [MAPID:450]
February 13th, 2010 15:02
This is a such a interesting blog…nice job
March 11th, 2010 06:12
Pretty nice post. I found your blog and wanted to say your information seems legit. Will keep informed. Thanks.
April 9th, 2010 16:14
hi , check this software :
http://www.gpsfiledepot.com/tools/garmin_map_id_finder.php