Hacking Nintendo DS Profile crash after MSET downgraded and rxinstaller.bin applied

[FFT]

Hello, I have Nintendo 3DS XL which has broken slot for cartridge, also outer camera is not working so I can't use physical copy of games and flashcards. I have tried to use rxTools v2.6 on my 3DS with firmware 7.1.0-15E. I did downgraded MSET to 4.x, but after applying rxinstaller.bin I can't use "Nintendo DS Profile" in System Settings because only it crashes and then 3DS reboots with information:

"An error has occured, forcing the software to close. The system will now restart. (Unsaved data may be lost.)"

Is it because of my firmware or what? I did NAND backup but after downgrading MSET to 4.x and before applying rxinstaller.bin. What I did wrong and what's the next possible step to fix this? Thanks in advance.

Edit:

I'm out of ideas. I've tried to apply my backup but nope, NAND.BIN error despite having this NAND backup on the root of SD card.

 

[FFT]

Anybody? I've updated to 9.2.0-20E by using sysupdater under rxtools pasta. Still, crash in DS Profile after downgrading MSET. Also rxTools freezes while booting in sysnand. Is it because I selected a 4.x version of MSET?

 

[Seita]

I think you have better options here. Go for coldboot. As for your issue, it happened to me too but I haven't bothered with mset since coldboot has appeared.

 

[FFT]

Got boot sysnand in rxTools to work. Now it shows RX-S 9.2.0-20E in System settings. DS Profile still crashes, so is it worth to try MSET dowgrading by using CIA? If yes then which version to use, 4.x or 6.x?

 

[Hayleia]

As @Seita said, why bother installing that annoying boot method when you can have coldboot ?

 

[FFT]

I get it, but I need to worry about this DS Profile settings crash in sysnand?

Edit.

Did cold boot with ctrbootmanager and menuhax. Installed one retail game CIA and is working great.

 

[Xinaman]

Try installing the MSET exploit through FBI, press select at the main screen of FBI.