Prohibited sign after spoofed smbios

I have my iMac (iMac 14,2) with OCLP 1.5.0, Sonoma 14.5 installed.

I got as gift a Magic Keyboard with touch id.

I see that isn't working on intel models (touch id) but looking on github I found a post saying that setting SMBIOS to miminal, the touch id menu would be visibile.

I flashed my internal drive and at boot I get the prohibited sign.

I followed this instructions to recover but it's still stuck: OpenCore-Legacy-Patcher-github-prohibited-sign

Any suggestions?