Thread: Convert Nuvi 1450 US to MY/SG?

@ devalian

after re-reading your post

what do you mean

"i put the unlocked img into /Map
and JCV into /.System/JCV"

the JVC is correct place if you place the map on the unit
for me, I place both file on the microSD card

the location as per-below

gmapsupp.img is placed on :SD/Garmin
while the JCV is on :SD/Garmin/JCV

you should try it
or you could try placing the gmapsupp in the .system folder itself and see if that works

Any of these combinations will work:
1. Maps as traditional name (gmapprom.img etc) in unit's .system folder, with corresponding .jcv files in sub-folder JVC of unit's .system folder.
2. Multiple maps as 'anyname'.img in Map folder in unit's root, with .jcv files as 1.
3. Map as gmapsupp.img in Garmin folder of sd card's root, with .jcv file in sub-folder JCV of Garmin folder.
4. Multiple maps as 'anyname'.img in Map folder in sd card's root, with .jcv files as 3.

Note that *.jcv files are specific for each map release. Having outdated files for earlier releases of the same map series in the same directory can cause problems. However, having multiple jcv files for different series maps in the same folder is fine.

Thank you ....this post helpfull

hi, sorry for asking from the beginning for the garmin nuvi1450. From what i have read from the beginning session, is it the nuvi1450 need to be flashed before can be loaded with the MFM maps? i did try to copy paste the MFM map into .system folder but the device still can't detect the map. do i miss something? or any other step i need to do?

Hi All,

Thanks for the detailed discussion/guide on modding nuvi1450 to nuvi 1460 MY/SG - But I am hitting these error/warning messages when reboot the GPS after flashing firmware:

Some hardware in this GPS is not working - Please send it to Garmin Engineer
Mobile signal not available

The GPS eventually stuck at "updating ecoroute hd software" forever unless I turn it off. I was flashing a modded firmware with the following config:

1. boot.bin from 1450 (version 6.20)
2. fw_all.bin and fw1_resources.bin from 1460 (version 3.10)


Any clue of getting this sorted out? Many thanks! Is the problem due to the boot.bin version I am using?

Originally Posted by hten

Hi All,

Thanks for the detailed discussion/guide on modding nuvi1450 to nuvi 1460 MY/SG - But I am hitting these error/warning messages when reboot the GPS after flashing firmware:

Some hardware in this GPS is not working - Please send it to Garmin Engineer
Mobile signal not available

The GPS eventually stuck at "updating ecoroute hd software" forever unless I turn it off. I was flashing a modded firmware with the following config:

1. boot.bin from 1450 (version 6.20)
2. fw_all.bin and fw1_resources.bin from 1460 (version 3.10)


Any clue of getting this sorted out? Many thanks! Is the problem due to the boot.bin version I am using?

Rename the text folder and copy over the text folder from the US firmware.
That should solve your error message upon boot up.

Thanks.

Hi,

Quick question, can I update my Garmin Nuvi 1450T via myDashboard assuming that I did a conversion of FW before from US to ASIA?