Just got my device yesterday. While transferring data from my S23 Ultrai via cable I was trying to charge the S24 wirelessly and it would not charge.
I made sure all charging settings were on and I tried multiple other devices which would charge properly. I also changed the cable and got the same result. Not till the phone ran out of battery during the transfer and restarted did the wireless charging work.
Day 2 and having a similar problem but charging via cable. Only upon restarting again did the device start charging.
I expect a LOT more when I spend $1500 on a device.
Are you using adaptive or maximum charging? If so, it may be the reason charging seems slow. You can check it Settings > Battery > Battery Protection > Basic, Adaptive, or Maximum.
You can opt in to fast charging at Settings > Battery > Charging Settings > Fast charging or fast wireless charging. Also, if you're not using a wall adapter of 45W or greater, the charging will be slower.
In this app there is Diagnostic Tests you can preform, go straight to charging test. You find it under support, bottom right on the home page of the Members App.
