What part i did last time a cart update to 4.5 with donkey kong and it's bricked that you didnt read?If you follow the OTP cubic ninja page you will see it tells ou to update to 9.2 after having obtained your OTP. You can either update with a game cart to 4.x or 6.x and use MSET with a DS flashcart (or browser, if it works wih the low browser) to then install a full 9.2. Or, use a 9.2 cart (but then you need to use cubic ninja to get into homebrew after that as your browser will not be updated)
Then, you use SafeArm9Installer.3dsx from homebrew to install a9lh.
The instructions are all there. If you don't understand a specific one, ask.
I alredy bricked my this new 3ds 2 times. The firsr time was 4.5 cart update. The second time too because guide says sometimes its brick. But i hardmod again. Now i just followed the guide because i was sure will get my otp. So now how i go 9.2?
Well i ll need to pay hardmod again. Its cost around $ 30 here.