This patch is for v2.3.2 and it completely bypass login by patching SingingTTSMain.dll and main executable.
Patch is made by @FrenSeleDreams and original source is this tweet.
Download VocalinaPatch.zip : VocalinaPatch.zip(From mirror)
Apply FREELINA-v2.xdelta if your version is unpatched v2.2.0. If you already patched once(with FREELINA-2.2.0.xdelta a.k.a. FREELINA v1) you should apply FREELINA-v2-FromV1.xdelta to change domain from vocalina.tk(free, unstable) to vocalina.cc(paid, more stable).
Download FREELINA v2 : FREELINA-v2.zip(From mirror)
You can still download FREELINA v1 but FREELINA v2 is recommended.
Download FREELINA v1 : FREELINA.zip