Qwikrazor has done it again, now everyone can enjoy a TN-V bubble on firmware 3.18. Do not update your PSvita if you want to keep TN-V working as it still uses the same Kernel exploit.
Picture from @Dessel575
From the readme:readme wrote:Use fake_np along with your base game to sign TNV.ISO.
Install the signed ISO (EBOOT.PBP) and transfer the ECFW01234 save.Tested and working on 3.18, it will NOT work at 3.30+.Source: qwikrazor87