Guys - on amcrest firmware site, I see IP2M-841 listed but now the EW wired version. I'm looking for what I believe is the last release firmware - V2.620.00AC00.3.R, Build Date: 2019-12-18
why? if it is not broke do not fix it. Look aground this site, so many people have killed there equipment by trying to upgrade. Others have lost functionality, when upgrading sometimes the developer removes functions to allow the new functions to work.
If you do not absolutely need a function in the new release. THEN DO NOT UPGRADE.