There are about a dozen S6's out there so try it without any memory and/or SIM card. The power button down looks to be a few minutes. I use a rubber band then leave it to make some tea.
If that fails it's back to the service counter for an in warranty repair.
I woke up this morning, took my phone off the charger, and my screen is black. The green charging led is still on, even though my phone is now off the charger. I cant turn the phone off (make the led turn off). I'm not sure what to do. Normally, I'd remove the battery and put it back but obviously this isn't an option with the s6.
Ive tried rebooting the phone by holding down the power button for an extended period of time, but no luck. I really hope you can help mee.