Note that the flashcart will not be able to be used for its standard functions while the ntrboot exploit is installed on it (except for in the case of the Acekard 2i, which remains functional *on 3DS systems with custom firmware installed only*). There are optional steps at the end of the ntrboot flashing instructions to remove it from your flashcart when you are done.
Note that in some rare circumstances, it may be possible for the flashing process to **brick** a counterfeit flashcart and render it permanently unusable. This is unlikely, but nevertheless only original listed flashcarts are supported. To reduce the chance of receiving a counterfeit card, it is recommended that you use a reputable site to buy your flashcart (such as [NDS Card](http://www.nds-card.com/))
{: .notice--danger}
#### What you need
* Your ntrboot compatible DS / DSi flashcart:
+ Either the Acekard 2i or R4i Gold 3DS RTS
* Two 3DS family devices
+ **The source 3DS**: the 3DS family device that is already running some kind of custom firmware (such as boot9strap or arm9loaderhax)
+ **The target 3DS**: the device on stock firmware
* The latest release of [boot9strap](https://github.com/SciresM/boot9strap/releases/latest) *(`ntr` boot9strap; not the `devkit` file)*
