iPhone 14 Pro Max no power repair

We have an iPhone 14 Pro Max that came in with a no start / no power issue. The phone has been dropped and had the casing and display replaced.
Eventually it proved the phone had both a charging issue and a very bad ripped pad which required reconstruction.

These are the tools I always use on my repairs:

Heat plate iRepairMS1:
https://www.diyfixtool.com/products/i...

Phone opener Refox RS50:
https://www.diyfixtool.com/products/r...

Solder station Aixun T3B:
https://www.diyfixtool.com/products/a...

Best flux ever - Mechanic 559:
https://www.diyfixtool.com/products/m...

Microscope camera:
https://www.diyfixtool.com/products/5...

Mini rotary fixture:
https://www.diyfixtool.com/products/r...

Reballing stencil for iPhone 15 series:
https://www.diyfixtool.com/products/a...

Chip grinding machine:
https://www.diyfixtool.com/products/a...

Heating pad:
https://www.diyfixtool.com/products/c...

148C solder paste for reballing interposer:
https://www.diyfixtool.com/products/m...

183C general use solder paste:
https://www.diyfixtool.com/products/m...

Best CPU reballing stencil for all iPhone CPU:
https://www.diyfixtool.com/products/m...

Best board universal holder:
https://www.diyfixtool.com/products/w...