Guys seriously don't try to downgrade, if you're super lucky it will work at best you end up with a frankenfirmware or you just straight up brick just be patient your 3DS and GBATEMP are not going anywhere.
When a piece of software prevents access to other parts of the system.
IE: Downgrade 2DS to 4.5 = Softbrick.
Why? Because it asks you to use the 3d slider when you attempt to set up the system. You can't do anything.
The problem is that people are being careless and jumping the gun, I guarantee that's why most of the bricks have happened. Looking at the results spreadsheet, there's an extremely high success rate on both old and new models (remember that there's always a vocal minority, in this case the bricks). Myself and several friends have made it to 9.2 just fine, but again we triple-checked EVERYTHING before proceeding.
Use a clean formatted SD, verify your ZIP type and MD5, and use one of the "safer" builds (we all used Julian's, despite it taking 100+ attempts to boot for a couple folks) and you should be fine. People are overreacting as a result of other people being careless. Is anything guaranteed? No, of course not, but this is much less of a dice roll than people are playing it out as.
I think the only way you're going to curb the same questions being asked over and over again is to ban the accounts asking the same questions for a few days and lock the threads. Everything has been answered just search people