On the soldered drive — you're right, unfortunately.
The standard Surface Pro 7 (not the "7+") does have its RAM, SSD and CPU soldered to the motherboard, so replacing any of those components requires a full motherboard replacement. This is different from the Surface Pro 7+, which Microsoft later redesigned with a replaceable SSD that IT professionals can swap in a matter of minutes. So, if your friend's unit is the original 7 (not 7+), the impact likely killed the drive, and there's no user-level swap — it's a board-level repair, which for a used device usually isn't worth the cost.
You don't need that serial-locked recovery tool. Instead:
- Make a plain Windows installer on the external NVMe via Media Creation Tool (no serial needed).
- Boot from it through the Surface's UEFI boot menu (Volume Down + Power, or set boot order in UEFI).
- Install Windows normally.
- Grab Surface Pro 7 drivers separately from Microsoft's site by selecting your model — no serial check there either.
No need to contact your friend's dad — this is a doable weekend fix, not a month-long wait.