Puts Kizuna's firmware back on your Kizuna adapter after it was overwritten, by mistake or for another use of the board. Plug it into this computer with its USB-C cable. Only an adapter registered to your account, or never used by anyone yet, can be restored.
Pick the mode to put on it. You can change mode later in the app.
Restoring rewrites all of the adapter's firmware and takes two or three minutes. Saved settings stay unless the other firmware erased them; if your Switch trade keys or Wi-Fi network are gone afterwards, add them again in the Kizuna app. Each restore is recorded against your account.
Kizuna