He dejado el siguiente feedback:
"
IPhone 8 Plus flash not working with cold weather (10 ºC). This is completly embarrasing. Is it a hardware issue or software issue? Checked in more than one iPhone 8 plus and fails in all of them
Checked also in iPhone 7 Plus and iPhone X and works as expected.
Please, treat this bug as critical, as there are a lot of users affected and seems to be a problem in all terminals, not only some of them.
"
A ver si mueven hilos...
PD: en mi caso no he comprobado si funciona o no, pues vivo en valencia y por aqui no hace mucho frio
DD.
Edito: Segun veo en internet el iPhone X tb está afectado por el mismo problema. No se si es cierto o no...