Battery replacement Issue with Note 20 Ultra 5g

I replaced my battery on my note 20 ultra 5g with a replacement battery from ifixit, however when I plug the phone into a wall adapter (the original one that my phone came with) it doesn't show a charge at all, and when i try to boot it up, i get the Samsung logo then it just turns off. When I plug the phone into my laptop, I get a charge showing 35%, I left it for a few hours and it stopped at 41%, I booted the phone fully (to my home screen), but after the phone finished booting, it just turns off shortly after. I cannot boot the phone without it being plugged into the laptop.

I have checked connectors multiples times and diligently reseated each connector with care making sure everything is seated properly,

I followed this guide to a T, and backwards when reassembling.