My update just finished. Excited to get the update, but very nervous I have the same bugs as on the S5 in our house also. I hope this isn't a huge mess/frustration that that S5 update was.
I got the Lollipop update a few days ago. Since then my phone randomly reboots itself throughout the day regardless if I'm actively using it or it's sitting idle. It gets very warm to the point that it's uncomfortable to hold and once it was very HOT. Is there a fix coming soon for this?
I know it is a pain, but a system restore will fix all your issues with it.
i did not have any issues after the update, but sometimes it will create issues due to some apps installed or system settings.
You might want to clear cache but I'm not sure if that will help. Also have you seen what apps you have running in the background that make the phone heat up? Settings - power saving.
Let me know if you need more help.