Console won’t turn on after replacing joycon sensor rails

So I followed the guide on this website for replacing the right joycon sensor rail on my switch (Nintendo Switch rechte Joy-Con Sensorschiene austauschen), but now when I try to turn it on the Nintendo logo will pull up for a few seconds before going blank. Also, when I can only get the logo to show up after holding the power button down for 15+ seconds and then pressing it again. I am absolutely sure that I did not mess with anything else while doing the repairs. I am positive that the console has a full charge and just in case it is plugged in right now. I would appreciate any help I could get on this matter, as I don’t want to send it back to Nintendo to get it repaired. Thanks in advance!