Fingerprint sensor, jack input and microphone is not working

Fingerprint sensor, jack input and microphone is not working on my phone, but apart from that, everything is fine. Charging connection has also been so, so lately, but mostly working. I've got a replacement phone, and now I'm ready to open the a52s up and try fixing the issue.

Since there are several issues at the same time, I've been assuming there is some connectivity issues, and I've been thinking that the main flex cable could be what needs replacement, but definitely not sure. https://www.fixshop.eu/spare-parts-samsu...

Anyone with a similar issue able to give some input?