I think you need to use the blue card during the downgrade
You use the blue card after downgrading. It allows you to install the DS Profile Exploit which is a much better way to launch gateway mode than the browser exploit.
You can also use it to play DS roms or GBA roms with MultiKernel.
Do you need to still always use the blue card during gateway bootups, or is it only used for the initial setup with Ultra? My gateway is on the way and I plan to downgrade to 4.x.
well tbh installing that cia file enables the blue card (and many other blocked flashcards) to work pretty much indefinitely, when i was originally testing it before the ultra release, i installed it on 4.x then updated to 9.4 and it still worked....but really its main use is allowing 6.x-9.2 gateway users to use the blue card without downgrading....but pretty much all gateway users can use the blue card unless its faulty, its a pretty decent cheapo NDS card, nothing special, but does the jobhttps://gbatemp.net/threads/release-use-blocked-ds-flashcards-on-3ds-probably-n3ds-too.376719/
The CIA provided in that thread does enable the use of the Blue Card on systems up to 9.2 FW.
I got mine working that way, I even installed the CIA on my SysNAND and nothing bad happened.
Still enjoying the fuck out of it.
This is correct - Ace3ds plus clone. The build quality on mine is really great, better than the red card (the SD slot placement on the red card is silly as the label sits badly) and it always disappointed me they used the nice dark grey plastic on the blue card and white on the red card. It's just a shame it won't accept and update .the blue card is just an ace3ds plus clone running some hacked up version of wood r4
its a junk card but it works for the basics