Video Doorbell 3 network change without PIN

Hi. I have a battery-operated Video Doorbell 3 & need to change the wireless network. Unfortunately, our installer screwed it to the door pillar, & what with pandemic OCD, I binned all packaging after 4 weeks. Even when I select “setup without scanning” the system requests the PIN, which will involve the pain of unscrewing the gadget. I assume forget-device-&-reinstall will require the PIN too. Is there a legit way around this, please? Thanks.