How to update my i94 to my pending EAD application

I submitted H4+H4 EAD renewal. Due to emergency reasons, I had to go to India. Now, I got my H4 stamped with new i94. My old H4 application was withdrawn. However, my H4 EAD is still pending. How can I let the USCIS know about my new i94 and keep my EAD application processing.

Your input will be extremely helpful.