If your not using a9lh, you need emunand, to use fbi.
You can't use eshop on 9.2 that is what emunand is for, it should be updated to latest fiirmware to access eshop.
CFW can allow homebrew, eshop, and cart backup games to be installed as well as play out of region. (Games not localized for your country) and few other interesting things.
You need a program to inject FBI installer into health and saftey app to use in emunand.
This is covered in the a9lh installation guide.
Section II - Injecting FBI
- Get into the Homebrew Launcher on SysNAND through the entrypoint of your choice
- Open Decrypt9 (This can sometimes take a few tries), then go to "EmuNAND Options", then "Miscellaneous...", then select the "Health & Safety Dump" option to dump Health & Safety tohs.app (you can use Up and Down / Left and Right to change the name)
- Press Select to eject your SD card, then put it in your computer
- Extract Universal Inject Generator, then copy both hs.app from your SD card and FBI.ciafrom the FBI zip to the input folder
- Double click go.bat (or execute go.sh with Terminal on Linux, or double clickMac_inject_launcher.app on Mac)
- Copy FBI_inject_with_banner.app to the root of your SD card and reinsert your SD card into your 3DS
- Press B on Decrypt9, then go to "EmuNAND Options", then "Miscellaneous...", and select the "Health & Safety Inject" option
- Press down once to select FBI_inject_with_banner.app, then press A and confirm to inject
- Go to the main menu, then press Start to reboot
You use emunand9 to make back ups.
Hourglass9 is the NOOB Equivlant to both decrypt9 and emunand9 so to prevent dumb mistakes since it has only simple options. Nothing too advance and enough for "Curiosty killing cats"
If you are using homebrew, There is ftp programs you can use for it. Also the Microsd card manager works as LAN if i am not mistaken. Other than wireless capiable, no there is no simpler way.
Browserhax work on all firmware from 9.0.0 to 11.0.0
Remember that using chain payloading with holding buttons on boot is how those programs are loaded. Is not necessary to use homebrew loader to open them anymore. Just remember what button does what, check the assigned function in the Luma/payload folder on the sd card.