Sajha Keto: Where will it say if they have mailed biometrics? How can I check? Will I-485 case status update about biometrics too?

Since my case was filed by lawyer, may be he will only be able to look if the notice was mailed.

Your biometric services appointment notice will be available in your USCIS ELIS online account under the Recent Notices section. If you have signed up for case status updates, via email or text, you will receive a message that your case has been updated.