[Q] Sony Xperia C5306 12.0.A.2.254 Root topic

Hello,
I have found methods for rooting Sony Xperia SP 12.0.A.2.254 for C5302/303. Yet, I couldn't find a method for rooting C5306.
I have searched the forum thoroughly, but maybe I missed a thread.
Are there any methods for rooting Sony Xperia SP 12.0.A.2.254 C5306?
If there are no such methods, is it possible to downgrade to a lower version such as 12.0.A.1.257 and root from there? If so, please write how to do that or provide a link to a guide.
Thank you