My interim solution for Samsung Gear S3 Overheating
Hi,
I had the same overheating issue too.
But I am using an interim solution personally to get my Gear S3 Frontier to full charge.
When I want to charge my Gear S3 Frontier, I turned my Gear S3 to airplane mode.
In 3 occassions, I can get to 100% charge without getting the overheating notification.
However, in one occassion, when it gets to 100%, the overheating notification does pop up.
Note: I am still observing this method. Would be glad to hear from you if this method works, assuming you choose to use this.
My explanation:
If you are charging your Gear S3 while you are moving around, your Gear S3 is continuously scanning for your phone, and also receiving signal via GPS, Bluetooth & WiFi. So it is still doing a lot of work in the background.
Why airplane mode:
Turns off all tranceiving & receiving of signals. Minimize the stress to the Gear S3.
Logically, when you are charging your Gear S3, you will not be using it, right? So, no harm turning to Airplane mode temporarily. A bit troublesome, but for me, it solves the problem of not getting to 100% charge.
On the other hand, I do believe the overheating notification serves as a signal to the Gear S3, to stop the charging process due to whatever reasons. It might be a safety feature.
Just my personal opinion.
Thanks.
From, Ronald