iPhone 14 camera problem (and other problems) after battery replacement and reparation menu

iPhone 14 battery replacement. This is the problem which I have. I bought in renomed shop battery for my iPhone 14 (I'm electronic technician), repair was made in ESD secure surroundings. After replacement, went into a service/reparations menu, all went well, battery capacity on 100%. But like on my last repair on iPhone 12, back camera went broke? After replacing back camera on iPhone 12, all ok. Now it happend again on iPhone 14 after replacement of battery, back camera does not work as it should (focus problem), and I can not shut off phone (unless I go to General and shut off) and button for "buzz or normal ringing" does not work. What is happening?? I have the feeling that something is wrong after Apple reparation menu which destroys camera and some other stuff.

Is it anybody with similar problem?

Regards