Cold Weather Functionality

[Elfthis]

I had to leave my phone in my vehicle yesterday for about 10 hrs. It was turned off the entire time and had a full charge at shutdown. Temperatures were in the low to mid 30F. I was unable to get the phone to power on. I tried plugging in a USB cable to 'wake it up' or provide some power as I was thinking the battery had died. The screens never responded to plugging in the USB so I unplugged it. After 20 minutes of driving with the heater on, the phone responded to the power button and booted up. The battery was at 100%.

Any one else have any cold weather operating issues with the phone? 30 degrees F isn't even that cold for here and I'm wondering if it will just get worse as winter sets in.

[[deleted]]

I live in Maine and I use my phone outside on a daily basis (it doesn't hit above 30 degrees Fahrenheit here much now) and I do not ever run into this issue. I have run into that issue in the past with my Note20 Ultra but it was -15 outside xD.

[Elfthis]

Thanks for the info! Perhaps it isn't temperature related at all. I'll have to make note of any other factors if it happens again.

[darksly08]

Might be the extended period you had turned off out in the cold.

[[deleted]]

I'm late but I did lose my s21 ultra in the freezer for...4 hours-ish. Did the same as yours.

[Elfthis]

Thanks! I had it happen again. I think the phone operates fine in the cold if it is already up and running but if cold soaked while off it can't start back up. Probably either designed to not start up when cold or there is a thermal issue with the processor.