Help please

[EXxile]

I admittedly am new to all this. I've got a new 3ds on 10.1. I have access to homebrew via browserhax and homemenuhax. I use the save manager to export my save file, and open it in pkhex, I try to create Pokemon or edit my trainer Sprite, or edit items, & when I click the export save button and replace the save file, and import it back into the 3ds, the save file is unedited. I'm sure I'm making a stupid mistake, hopefully someone here can help! Thanks in advance!

[Favna]

I can't quite determine said stupid mistake so let me give a run down on the process instead:

1) Get into homebrew menu by whatever means

2) Run save manager (i assume you're using the simple one, not svdt) and press A to backup

3) Get the "main" file on your pc - new3DS I advice using FTPBrony or any other FTP client, old3DS just go back to homebrew launcher and pop out SD card

4) Open this main file in pkhex and make your edits

5) In pkhex go to export save -> then overwrite the old file

6) Save this file back on the SD card. To be extra sure, you could delete the file that was previously on the SD card to make sure it is essentially overwritten

7) Get back to homebrew launcher (if you're using o3ds you will already be)

8) Run save manager and press B to import

9) Run the game - edits should be there.