Can I replace the headphone jack on an iPhone SE? I have the tip of a headphone jack stuck in the headphone socket in a brand new iPhone SE. 

I went to Apple looking for a repair and they said that it wasn't repairable and that I'd have to spend £200 (~$290) on a replacement.

I have found instructions on how to replace an iPhone 5s headphone jack here. Does anyone know if I will be able to follow the same instructions for the 5s using a SE? Also, will I be able to use the same part as it's the same form factor?
Apparently, it is possible to replace the Lightning connector assembly, which includes the headphone jack and microphone: 



Ifixt.com has a guide on how to do this.  It's rated as a moderately difficult procedure; if this is not something you are experienced with, it's best to have a pro tackle this type of repair.