Following is a download link for the CN NA 2020.20 map large JCV file, D3060300A.JCV. The file is not zipped and no password is needed.
Wow that was fast, thanks for uploading the large JCV.
On my PC, the above link is wider than the message window and the final character ( the numeral 4) is missing. If you try to copy and paste the link and it fails, check to see that the link ends with BHLNx4.
I can't believe I still have my Nuvi 885T and will use it on occasion versus my cell phone, but do appreciate keeping the maps up-to-date and having access to the large JCV file. Thanks to guys like yourself that give us the capability to download it.
Thanks so much, Mcginkleschmidt!
With your speedy posting, I have already installed everything, backed it up, and tested the simulation for the junction views.
You make it a comparative pleasure.
Very helpful and fast.
The link works fine. Downloaded and installed the large JCV last night. Just click on Quote on his post, it’ll let you copy the entire link and paste it.
Downloaded without any problems.
Download of the CN NA 2020.20 map large full-screen JCV file was easy and flawless!
Thank you so much..
any chance i can get a link to the 2020.20 gmapprom.img file?
Thanks in advance!
Please add my thanks to the pot.
My thanks as well!
Thank you mcginkleschmidt for posting the large JCV for Map Update 2020.20
Would someone who has successfully tested and used the large JCV file please post the SHA-1 or SHA-256 Checksums to validate the download was successful. It's going to be a few weeks before I can download the map itself and would like to ensure I have an uncorrupted download of D3060300A.JCV file.
for the download
The large JCV file works fine on my 1390T with the new map. Don't have a clue on what the SHA checksums are. Sorry.
thanks - now to load it.
What, you can't do this yourself? Seriously?
Thank you for posting the checksums. They helped validate my download was successful and complete. Hopefully I will be able to download the map update within the next week. Thanks again.
What's your point? Once someone posts their checksums from a working copy of the JCV then I can generate the checksums from mine and see if they match. Maybe you don't understand checksums?
Your post provides no additional value to my posted request and Seapup's helpful reply. So why post it? Seriously.
And, what if their checksums are wrong... lol
No prob. I don't validate checksums for Garmin downloads, but always manually validate when downloading firmware for expensive electronics. But most of the sites I download from post the checksum to help prevent bricking electronics with a bad download.
Would someone tell me pleasse tell me please, the process of installing the jcv map. im sorry im new here,
Welcome to The Factory.
To answer your question, you copy the downloaded large JCV file from your computer to your Garmin device, placing the file in the device's folder where the current jcv file is while also deleting or disabling (by renaming) the jcv file installed with the current map. Your question asked about the "jcv map." If your question is how do I update my Garmin devices' maps, then ignore this thread and install and use Garmin Express software. Please note that the file is only the large Junction View file intended to work with the current new version of Garmin's City Navigator North America map which you would have already installed with Garmin Express software.
To answer the question you haven't asked:
I strongly recommend that you make a full backup copy of your Garmin Device before tinkering with its internal files. Caveat emptor!
Note that the FAQ suggests the large jcv file may not work on a nuvi 66LM and if you try to install it there anyway, please report back with your success or failure so I can update the FAQ.
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