There is three ways this cart works.
4.5 FW - The GATEWAY uses an exploit in the DS Profile to create a 'smash stack'. This crashes the 3DS and causes it to reboot, allowing the GATEWAY's installed profile strings to inject code into the memory and force the DS to boot into the GATEWAY menu.
4.5 - 9.2 FW (3DS & 3DSXL) - Utilising an exploit in the 3DS spider webkit, the Gateway loads an ROP chain using javascript and DOM which allows loading a file from SD card. It then another exploit to inject into the 3DS's memory and run the unsigned code, crashing the 3DS and allowing the GATEWAY to load.
8.0-9.2 FW N3DS & N3DSXL - This requires a copy of Legend of Zelda: Ocarina of Time. The game is loaded with a custom made save. The save then triggers 3 exploits: gspwn, memchunkhax (to gain kernel control), and firmlaunchhax (to take over the security processor), and boots into the GATEWAY menu.
So the GATEWAY works by running unsigned code on the 3DS. However it has some advantages which i'll go through in a bit.
SKY3DS:
The Sky3DS works by emulating a 3DS cart. Unlike its competitor the GATEWAY, the SKY3DS does not rely on any kernel exploits, and works on every FW from 2.0-9.5 on both OG3DS and N3DS (so far). It works by essentially pretending to be a legitimate cart so that the 3DS will run it.
Now, each one does different things.
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GATEWAY:
• Allows game backups to be run
• Allows retail game cart backups
• Allows NAND backup
• Allows console downgrade (OG3DS & OG3DSXL only)
• Allows EmuNAND
• Allows Homebrew (in .3ds format)
• Allows installation of .cia files via certain homebrew
The GATEWAY is advanced, and has a lot of features! But can be a royal pain in the arse 90% of the time.
SKY3DS:
• Plug and Play. Load Game backups
• Online play supported with no extra hassle
It is region locked (unless you use regionfree). You have to use your own console Region backups (which you should be using your own backups anyway). There also exists 2 version. rev1 which has a 10 game limit, and rev2 which removes the limit, and it does require the games to be written using a custom Sky3DS tool. But other than that you just plug it in and play, no fuss, no hassle!
Taking account recent cfws, in writers' opinion,SKY3DS is better.
1. when you have a GW card. You need SKY3DS to start many loader such like ninjhax, regionFOUR and this Pasta CFW. Gateway 3ds plays monodrama on unsigned code as like CIA on below 3ds 9.2 but you need the CUBIC NINJA to launch it. While after all genius CN games is hard to buy since it almost out of stock for a long time. SKY3DS can do CN game card job perfectly it works like genuine game card. SKY3DS can also be used for playing any 3ds games on any console well.
2. In future some more powerful CFW loader is released but needing another game like Animal Crossing to boot. Do you have to buy another expensive genuine card? If you shop one SKY3DS, you own the whole world.
3. Dsiware, GBAVC only works on Pasta CFW with SKY3DS’s help, Gateway 3ds can do nothing.
All in all, SKY3DS seems more and more popular with these powerful patches/ cfws. Buy SKY3DS from official reseller Dwtechz.com, fast and free shipping, only $75.9
