The only chance of a brick is if your console dies/turns off while installing (or uninstalling) unlaunch. Just make sure you not trying to install it when the battery is low and you should be fine.
For both 3DS and DSi, there is a risk of the systems being bricked. I have successfully modded both but be sure to charge both systems before you download anything, otherwise if it dies in between the download process (Unlaunch specifically) it will brick your system. You should install a NAND backup to ensure that if it does brick, it is recoverable.
The only chance of a brick is if your console dies/turns off while installing (or uninstalling) unlaunch. Just make sure you not trying to install it when the battery is low and you should be fine.
How did the 3ds homebrew not end up well?
Curious too. It's such an easy and streamlined process these days.
I was an idiot and got a blackscreen and had no backups.
not really theres one point where u back up the original software and have it just in case.
For both 3DS and DSi, there is a risk of the systems being bricked. I have successfully modded both but be sure to charge both systems before you download anything, otherwise if it dies in between the download process (Unlaunch specifically) it will brick your system. You should install a NAND backup to ensure that if it does brick, it is recoverable.