Hi @marten33535
Here's a teardown [https://www.youtube.com/shorts/cifnQzsB5QI|video] that many help.
The charging connector flex is accessible after the battery has been removed from the phone.
I realize that the video is for a Nothing 2a model but it should be the same for a Nothing 2.
Depending on which model you have, search online for either a [https://www.google.com/search?client=firefox-b-d&q=Nothing+Phone+2+%28A065%29+Charging+connector+flex|Nothing Phone 2 (A065) Charging connector flex] or a [https://www.google.com/search?client=firefox-b-d&q=Nothing+Phone+2a+%28A142%29+Charging+connector+flex|Nothing Phone 2a (A142) Charging connector flex] to find suppliers that suit you best. (examples only)