I'm posting a DIY for this, just did it myself today. I did it for north american maps, next 2019-2 on NBT. Process is the same for anything really.
Make sure Esys and Launcher PRO 3.0 is installed. Only way to get Launcher Pro is
https://www.**************.com/ you'll have to donate 50USD to get the token.
For NBT ONLY! (To find out, go to your car, go to navigation, move the iDrive controller twice to the right, scroll down to Navigation system version, and on the bottom of the screen you'll see if NBT or CIC)
Search google for Road Map North America NEXT 20XX-X (X being the latest year and map version, google it)
Download the torrent and save the map to a FAT32 formatted USB drive.
Download software called BMW_CIC_FSC_Generator (this will work for both CIC and NBT) from
https://f30.bimmerpost.com/forums/sh....php?t=1456836
Plug in computer to OBD port.
Double click Launcher Pro 3.0 to launch ESYS.
1. Connect to car with Esys.
2. Click “FSC Extended” on left of Esys.
3. Enter “0x63” for the “Diagnostic Address”.
4. Click “Identify”.
5. Wait for “Base Variant” to display your cars' info.
6. Enter “0xDE” for “Application ID”.
7. Enter “0x1” for “Upgrade Index”.
8. Scroll down and select “StoreFSC”.
9. Select the “ >> ” button.
10. Click “Read”.
11. Click “Save” and save as last 7 digits of VIN.FSC
(example: XXXXXXX.FSC)
REMEMBER WHERE YOU SAVED THIS FILE.
Then open BMW_CIC_FSC_Generator
Make sure it updates the RSAKeys and Lookup files
Click NBT on top.
Click open file and navigate to above saved file.
Map type = Next
Fill in the rest of the info and click generate.
Plug in the USB stick with the maps data into the car, wait for the update prompt, then select update
Enter the FSC code you generated when iDrive prompts you.
Done.