Now, I thought/understood this was slightly different.
The LNAV part of the procedure remains the same.
The VNAV part is where the anomalies arise.
You may use VNAV as your descent profile/method, with any altitude/temperature corrections up to, but not inside the FAF.
Within the published temperature (o/p gives -15c as the lower temperature limit) constraint of the procedure, then VNAV minima apply; LNAV/VNAV.
once outside of the published temperature constraint, the LNAV only minima apply, which are likely higher. This does not mean that VNAV cannot be used; it simply means that your minima are higher.