Can you reflash CWM recovery via OTG cable with USB stick?

[AC Question]

After installing a custom rom on my HTC One (m7) it only boots in the recovery. I read about reflashing the recovery by the newest one could help, but I cannot connect the phone to my pc.

I do have an OTG cable with USB, which I can connect to my phone. But how do I flash a .img from it? Could not find any option in the CWM recovery..

Thanks.