ASA 5555-X migrate to Firepower 2130 with ASA image

[ironman28]

I try to migrate ASA 5555-X with 9.14(3) to Firepower 2130 with ASA image.  

Is best to do more system:running configue and copy and paste the config to the new firewall or better to do backup and restore from the ASDM?
I'm worry that if doing copy and paste will not carry information like the certificates and VPN setting.

[balaji.bandi]

If the same version of ASA Code you can do config restore.

[ironman28]

Yes.  I upgraded to the same code. 

[Sheraz.Salim]

if you have vpn cert based tunnel in that case most likely you have your ASA identity cert too. in order for the migration you need to import the identity cert from ASA.

The command is

crypto ca import <trustpoint> pkcs12 <passphrase>

Here 

once exported you need to import the cert (identity cert) into your new firewall.