So I'm in 7.1.0-4E and I want-need to downgrade my 3DS. When I try to do so with Gateway, it gives me an fatal error 0001001, and I discovered that it was because of my Browser version. Following this tutorial I tried to update my 3DS version but I can't boot into the rxTools, since it gives me an error saying: "An error has occurred. Please save your data in any software currently in use, and then restart the system." The same error occurs when I try to load Gateway on my browser without cleaning cookies and history, but doing the same dosen't fix anything when I try to load rxTools. Browserhax also appears to not work on my version, so I can't boot into any CFW. Any way that I can fix this and upgrade my browser version? Sorry if this question is stupid or it was already answered, but I can't find anyone with the same problem.