Change sn to N8GR - first 4 letters of course

Currently, SHFW works properly D18, D28, D38
Some people didn't have the D40 version. But it seems that the parameters correspond to D38

Do not change the serial number
1. Install on android phone scooter hacking utility app. See if you can upload SHFW without ST-LINK.
2. If this fails, you must use ST-LINK and reflasher, select the F series. Then return to step 1

https://youtu.be/XrBXI-T3OA0
You have everything here

Install SWHF, upload the firmware and set what you need

What version of DRV do you have in SWHF?

What does SHWF show?
What do you see on the dashboard?

Change region in SHWF
Additionally, subscribe to the ScooterHacking.org Discord