Ngrrox

After two weeks of try I have finally resolved the unlock map problem, 0x31A0 issue and upgraded to 2020.10 Map today!! 

The map version I loaded to USB is 2020.10, total file size is aorund 6.1 GB.

Like many others, I have 0x31A0 error too and read every reply in this thread from page 1 to last and learned a lot from others. As other says, the key to resolve 0x31A0 is the USB drive! Basically, the symptom of 0x31A0 is when you insert USB, it fails the validation and says "Please retry update procedure or contact your dealer for assistance"; then if you do not click OK for 3 or 4 sec. it will pop up "Error on Reflashing. Errorcode: 0x31A0. Please touch screen". 

Overall, the key to pass validation and avoid 0x31A0 is to get a big brand USB 3.0 formatted as FAT32. I would recommend an at least 16GB USB drive if you are buying new one as the map will get bigger in following years anyway.

Here are all USB I tried and failed:

Noname 8GB USB 2.0 FAT32 -- No recognized at all
Kingston 8GB USB 2.0 FAT32 -- Recognized, validation failed. 0x31A0.
Noname 128GB USB 2.0 NTFS -- Not supported USB
Sandisk 256GB USB 3.0 exFAT -- Not supported USB

I read somewhere in this thread that people have higher success rate with USB 3.0 FAT32 format, but since my new Sandisk 256GB USB 3.0 came with exFAT which is better capabilities than FAT32. However, Windows does not allow me to format it to FAT32, I have to use DiskGenius to format my 256 GB USB to FAT32. 

After that, just loaded all files mentioend in original posting to USB, validation passed, navigation rebooted and the copying files to car took me around 1.5 hours, and finally I was noticed "Update Maps successfully" and "cant unlock detail maps" error is gone!

Also, with a larger USB I never need to use the Fallback method to load ASR, JCV, SID folders multiple times. All files and folders are copied to my car once.


If you have 0x31A0 issue, just keep in mind and convince your self that your dodge vehicle is a picky vehicle and only premium USB drive can match a premium vehicle. 

Special thanks to RScottyL, tanbam and many other members!

I did not acquire a Garmin Nuvi to get all necessary files. see [https://mega.nz/#F!gQIVkaZR!0gwsBO_4sO7g--fWHbAOMA] If you are reading this, keep it low profile.

After two weeks of try I have finally resolved the unlock map problem, 0x31A0 issue and upgraded to 2020.10 Map today!! 

The map version I loaded to USB is 2020.10, total file size is aorund 6.1 GB.

Like many others, I have 0x31A0 error too and read every reply in this thread from page 1 to last and learned a lot from others. As other says, the key to resolve 0x31A0 is the USB drive! Basically, the symptom of 0x31A0 is when you insert USB, it fails the validation and says "Please retry update procedure or contact your dealer for assistance"; then if you do not click OK for 3 or 4 sec. it will pop up "Error on Reflashing. Errorcode: 0x31A0. Please touch screen". 

Overall, the key to pass validation and avoid 0x31A0 is to get a big brand USB 3.0 formatted as FAT32. I would recommend an at least 16GB USB drive if you are buying new one as the map will get bigger in following years anyway.

Here are all USB I tried and failed:

Noname 8GB USB 2.0 FAT32 -- No recognized at all
Kingston 8GB USB 2.0 FAT32 -- Recognized, validation failed. 0x31A0.
Noname 128GB USB 2.0 NTFS -- Not supported USB
Sandisk 256GB USB 3.0 exFAT -- Not supported USB

I read somewhere in this thread that people have higher success rate with USB 3.0 FAT32 format, but since my new Sandisk 256GB USB 3.0 came with exFAT which is better capabilities than FAT32. However, Windows does not allow me to format it to FAT32, I have to use DiskGenius to format my 256 GB USB to FAT32. 

After that, just loaded all files mentioend in original posting to USB, validation passed, navigation rebooted and the copying files to car took me around 1.5 hours, and finally I was noticed "Update Maps successfully" and "cant unlock detail maps" error is gone!

Also, with a larger USB I never need to use the Fallback method to load ASR, JCV, SID folders multiple times. All files and folders are copied to my car once.


If you have 0x31A0 issue, just keep in mind and convince your self that your dodge vehicle is a picky vehicle and only premium USB drive can match a premium vehicle. 

Special thanks to RScottyL, tanbam and many other members!

I did not acquire a Garmin Nuvi to get all necessary files. see [https://mega.nz/#F!gQIVkaZR!0gwsBO_4sO7g--fWHbAOMA] If you are reading this, keep it low profile.

this link may help for map files... keep it low profile.