I tried but almost brick my 3dsWhy you uninstalled it, you should just do the A9LH upgrade to B9S?
I tried with fredminer so don't have "boot9strap"On the SD card, inside "boot9strap" is a file named key.bin. If you are absolutely sure the system is not booting into arm9loaderhax now, rename it to "danger_skip_a9lh.bin". If this results in a brick, get an ntrboot cart.
This error message comes from b9stool, so it should exist.I tried with fredminer so don't have "boot9strap"
screenshot please
Ntrboot.I am having the exact same problem. Anybody knows a solution?