So the screen doesn’t stay off when she has it near her ear? Maybe this is related:
Can you try dialing * # * # 2 8 8 6 # * # *
and running the proximity sensor test? Does it work there? Unfortunately I don’t know of any way to manually calibrate the sensor. And yeah, it seems it’s kinda wonky and needs to be fixed:
- Proximity sensor problem FP4
- Proximity sensor goes crazy in sunlight (WhatsApp, Signal, Facebook Messenger, Stock Dialer, WaveUp)
If the issue persists, please make sure to contactsupport and let them know.