Hacking Can't boot after restoring sysNAND

[windhazard]

I'm using o3ds XL firmware 9.2. When i first bought it and installed CFW, i backed up sysnand into NAND.bin.
Yesterday for some reason i restored my sysNAND through gateway (up+A on downgrade) using NAND.bin. It was sucessfully restored.
Today however i restore it once more using the same backup file. After the sucessful message, i rebooted but screen was black. Taking out SD card and reboot doesn't help. I am using rxTool 2.6, not AL9H or Luma3ds. Pressing L+R+Up+A into safe boot mode also doesn't work.
Is it hardbricked? Why? The backup file was good and the process ended sucessfully
Is there anyway to fix without relying on hardmod?
Thanks!

 

[xtheman]

Gateway doesn't have good safety checks so it might have installed a corrupted nand backup.

 

[windhazard]

I guess, so it is really hard bricked then? Is there a way to fix?

 

[xtheman]

I guess, so it is really hard bricked then? Is there a way to fix?

It is hardbricked. If you have a good nand backup you can get a hardmod http://gbatemp.net/threads/list-of-hardmod-installers-by-region.414224/

After getting hardmod get A9LH and not use an outdated CFW like rxtools. https://github.com/Plailect/Guide/wiki