Use the flat end of a spudger to disconnect the interconnect cable and remove it.

Use tweezers to disconnect the antenna cable and remove it.

Remove the charging board with tweezers.

If you're having trouble whilst removing the charging board you can use an iOpener to loosen the adhesive beneath it.

Before reassembly check your new part for any components that might need to be transferred from the old one. Also check if new thermal pads (pink rubber-like gobs) need to be applied.

When reassembling your phone replace old adhesive with double-sided tape or pre-cut adhesive strips.