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If your flashcart comes pre-flashed with ntrboot (or you have already flashed ntrboot to your flashcart), you can skip to Installing boot9strap (ntrboot) for instructions on how to use it. {: .notice--success}
Required Reading
Installing boot9strap with ntrboot requires a compatible NDS / DSi flashcart to flash ntrboot to. Note that some of these flashcarts are sold pre-flashed with ntrboot.
While the ntrboot exploit works independently of the system version, the ntrboot flasher (which installs the exploit to the cart) is not. This means that, depending on the versions and consoles supported by your flashcart, only certain methods may be available to you.
Note that carts with a "Time Bomb" will no longer be able to launch .nds files when they detect that the system clock has passed a date determined by the flashcart firmware. One method to bypass this is to set the system clock to an earlier date.
| Flashcart Name | Current Price | "Time Bomb"? | 3DS Versions? | DSi Versions? | Other Notes |
|---|---|---|---|---|---|
| Ace3DS X | $17.99 | No | ALL | ALL | Comes pre-flashed with ntrboot (external switch to switch between ntrboot ("3DS") and NDS modes); do not manually flash with ntrboot. This cart needs an SD card inserted to function for both ntrboot and regular NDS firmware. |
| R4i-SDHC B9S (r4i-sdhc.com) | $16.99 | September 3, 2024 | ALL | ALL | Comes pre-flashed with ntrboot; can be flashed back to an NDS flashcart. |
| DSTT (ndstt.com) | $11.99 | No | None | None | Only models with certain flash chips are compatible with ntrboot. |
| R4i-SDHC 3DS RTS (r4i-sdhc.com) | $15.99 | 1.85b: September 3, 2024 | ALL | ALL | |
| R4iSDHC GOLD Pro 20XX (r4isdhc.com) | $17.99 | 4.0b: September 3, 2024 | ALL | ALL | Only r4isdhc .com carts marked with a year of 2014 or later are compatible. |
| Ace3DS Plus | No | ALL | ALL | This cart needs an SD card inserted to function for both ntrboot and regular NDS firmware. | |
| Acekard 2i | No | <= 4.3.0 | <= 1.4.4 | ||
| Gateway Blue | No | 4.1.0 - 4.5.0 | ALL | ||
| Infinity 3 R4i (r4infinity.com) | No | ALL | ALL | ||
| R4 3D Revolution | No | None | None | ||
| R4i Gold 3DS Plus (r4ids.cn) | No | ALL | ALL | Comes pre-flashed with ntrboot ([internal switch to switch between ntrboot and NDS modes]({{ "/images/screenshots/r4i-gold-3ds-plus.png" | |
| R4i Gold 3DS (r4ids.cn) | No | ALL | ALL | All carts are compatible. | |
| R4i Ultra (r4ultra.com) | No | <= 4.3.0 | ALL | ||
| R4i-SDHC 3DS RTS Deluxe Edition | Unknown | ALL | ALL | Only the Deluxe Edition with the blue sticker is compatible. | |
| R4iSDHC RTS LITE 20XX (r4isdhc.com) | 4.0b: September 3, 2024 | ALL | ALL | Only r4isdhc .com carts marked with a year of 2014 or later are compatible. | |
| R4iSDHC Dual-Core 20XX (r4isdhc.com) | 4.0b: September 3, 2024 | ALL | ALL | Only r4isdhc .com carts marked with a year of 2014 or later are compatible. |
![]({{ "/images/screenshots/ntrboot-flashcarts.png" | absolute_url }}) {: .notice--info}
Ensure your flashcart is able to launch .nds files on your console before beginning. Some flashcarts may require firmware or "kernel" files to be copied to the flashcart SD card. Consult your specific flashcart's instructions for more information.
Note that specific methods may have additional compatibility information.
The usage of this exploit, regardless of the flashing method, requires access to a small magnet if the target console is of a folding style (any 3DS family system that is not the old 2DS with a sleep switch). This is because the exploit requires your console to enter sleep mode while still having access to the buttons.
To test if a magnet will work, hold it on or around the (A)(B)(X)(Y) buttons while the console is powered on to see if it triggers sleep mode. If it does, both displays will go black as long as the magnet is held in that spot. {: .notice--info}
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 NDS and custom firmware 3DS systems only). This means that, for most flashcarts, it will not even display on the HOME Menu. 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). {: .notice--danger}
Methods
Flashing ntrboot (3DS Single System)
This method requires nothing more than your stock unhacked 3DS and a compatible flashcart. This method uses the flashcart to run the ntrboot flasher .nds file on your 3DS. This means that your flashcart must support launching .nds files on your 3DS's version. See the flashcart table above for more information.
Continue to Flashing ntrboot (3DS Single System) {: .notice--primary}
Flashing ntrboot (3DS Multi System)
This method requires temporary access to a second 3DS family console that is already running boot9strap. This does not require your flashcart to support either 3DS's version.
Continue to Flashing ntrboot (3DS Multi System) {: .notice--primary}
Flashing ntrboot (NDS)
This method requires temporary access to a Nintendo DS or Nintendo DS Lite that is compatible with your flashcart. This method uses the flashcart to run the ntrboot flasher .nds file on your NDS.
Continue to Flashing ntrboot (NDS) {: .notice--primary}
Flashing ntrboot (DSi)
This method requires temporary access to a Nintendo DSi that is compatible with your flashcart. This method uses the flashcart to run the ntrboot flasher .nds file on your DSi. This means that your flashcart must support launching .nds files on your DSi's version. See the flashcart table above for more information.
Continue to Flashing ntrboot (DSi) {: .notice--primary}