Navigate to [https://adsmanager.facebook.com/adsmanager/manage/campaigns](https://adsmanager.facebook.com/adsmanager/manage/campaigns?act=1889040871565791&business_id=387056784784385&global_scope_id=387056784784385&nav_entry_point=am_local_scope_selector&date=2024-01-21_2024-02-20%2Clast_30d&breakdown_regrouping=true)

Click Edit. 

If you don't see Edit, click the 3 dots and you should see Edit in a dropdown menu.

Scroll to the Ad Creative Section and click Edit.

When you're finished uploading new media, make sure you Save/Publish your ad.

How to Change Facebook Ad Photo/Video