H1B-H4-H1B while H4 COS is pending

My H1B maxed out on July 3rd and I applied for H4 COS before, so that I can continue to stay in the US. My PERM application was approved on July 1st and my employer is processing my I-140 on premium. Once I-140 is approved my employer has agreed to apply for my H1B COS on premium.

I read lot of threads on your website that, my H1B cannot be approved unless H4 COS is approved. And I cannot even goto India to get my H1B stamped since there is a travel ban in place and visas are not being processed. What will happen in my case?

You can get your H4 visa stamped at Mexico or Canada, travel back to the US and do COS from H4 to H1B.