Thanks Turbotax assistant help me completed return 2024, but I must sign on the return before to filling

When you e-File with a 5-digit PIN or IP PIN, your return is presumed to be signed.

There's no other way.

@mmbodajlo 

There is no physical signature on an e-filed return.  You "sign" electronically by entering your 2023 AGI and your PIN.   You can use your 5 digit self-select PIN or if you requested a 6 digit PIN from the IRS it goes in a different spot:

If you have a 6 digit PIN issued to you by the IRS you need to enter it in order to e-file.  Go to Federal>Other Tax Situations>Other Return Info>Identity Protection PIN and enter the six-digit PIN.