Random restarts, how to narrow down the cause? - Sprint Samsung Galaxy Note 8 Questions & Answers

I've had my Note 8 since launch and have been putting up with random restarts every few days (even happened mid call a couple of times) so I took the plunge and factory reset it a week ago. I purposefully only restored the most essential apps to rule out any of them as the cause.
Over the last week, I've had a few restarts and noticed that they occur when the phone is coming in/out of sleep e.g.:
Taking the phone off wireless charge, the screen tries to turn on but it just turns the phone off.
Putting the phone on wireless charge, the phone goes to display the wireless charging indication halo thing then just shuts down.
When I've had a notification come through when I'm out and try to turn the screen on, then it restarts.
These have only happened once each time so I can't repeatedly try any of these out to see if I've found the cause. Has anyone else experienced anything like this or know how to narrow down what the cause could be?

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My S730 turns off automatically

Hey there.
I have my HTC S730 for nearly 2 months now.
I don't know why but my Wings plays a strange melody and then turns off.
Even if the battery is fully loaded! After it turned off it takes a long time before i can turn it on again. I can push the start button on the top of my smartphone but nothing happens.
I don't know what it is. I Hardresetet my device 3-4 times now but it's still not working correctly.
Can you please help me?
Did anyone recieve the same "error"?
I have the same error!
But no solution.
It happens sometimes, mosty not logical... I'll wait for a few weeks, if it keeps on i'll go back for warranty!
What are you running when the reboot occurs? Never looked but is there a way to schedule it to do such a thing?
Does it display anything on screen before it happens? You might check in the power options to see if its shutting down due to some setting...
When I have some time I will dig through mine and take a look.
Off the top of my head I would surmise that its either overheating and shutting off, an installed application is causing issues and it is turning off, a setting within the phone is causing it to turn off, or something is wrong with the device.
May be caused by overheating. I have no other applikation installed on my Device since i Hardreset it. It shows up the HTC logo when it shutsdown.
I dont run any applications at all. Sometimes i listen to music with the Music Player.
When i start my phone up again (after some waiting time) it shows me that my battery power is 0. After some time of waiting it shows me that my battery is nearly fully loaded.
It only happens 1 or 2 times per day.
But please help me
It's not overheating in my case.
I saw it happen last time (5 minutes ago), just before the HTC logo is saw a little cross trough the battery indicator. I suppose the battery is not good? After reboot the indicator shows a full battery??
I would give HTC a call about those batteries. I would think that they are bad, or the phone is having issues drawing power from them and so it shuts off.
If its overheating it should be VERY warm to the touch, I have gotten mine warm but never hot after some heavy use, but I just let it cool off afterwards and it was just fine.
Usually with low battery it will flash a warning on screen and make a noise indicating low battery, but if the battery suddenly is in zero the phone could automatically shut off. Does it power off quicker than a normal shut down sequence? I would have thought that the phone would just run until it's instantly cut off by a dead battery, but if its misreading it or reads it in the danger zone it could have an auto shut down.
Had the same thing with my wings/s730.
After hard resetting it it worked fine again.

Hardware Damage?

Ok since about a week ago my G1 would randomly turn itself off, but never give me a low battery warning, and never say powering off. If I turn it back on, sometimes it makes it to the lock screen, and sometimes it doesnt and it just turns itself back off. Sometimes itll even fully boot and I can still use it (rare cases) but the battery will still say its fine, and sometimes it gets low and turns off. Sometimes even after shutting itself down I will lose all my contacts, sms, etc, and it will sync back up, very wierd and annoying. The only remedy is putting it on the charger and turning it back on, and I will have no problems. I dropped my phone recently also, this could have caused this madness, or its a battery issue, I will try to swap batteries and c how it is. But any ideas?

[Q] Phone plus wifi on = overheat

I have my htc hd7 for 4 days now and i had no problem with the phone so far except a few hours back, when i left my wifi on (i usually turn it off after using) while i continued with my work on my computer. Suddenly the phone vibrated and restarted itself in front of me, i picked up the phone and felt that the lower back of the phone was quite hot.. Turning off the wifi seems to have allowed the phone to cool and no random restarts thereafter.. Anyone encountered the same?
I used wifi for 4 hours (after that the batt was empty) on my hd7 and it was only a little warm and it didn't reset it self .
No such problem here
No problems here. I leave Wi-Fi on all the time when at home, for many hours sometimes, with no overheating issues or random resets.
Ok.. Must be something else that I did.. Anyway I noticed that the phone has notification LED light for missed called but not for unread text messages. Any1 knows how to enable it?
No problem here either. Use wifi as soon as I get it in range.
Mine does this to. It gets super hot at the bottom especially when wifi is on. Im guess that is where the CPU is or the WiFi chipset. About time to exchange.
MantisBoy said:
I have my htc hd7 for 4 days now and i had no problem with the phone so far except a few hours back, when i left my wifi on (i usually turn it off after using) while i continued with my work on my computer. Suddenly the phone vibrated and restarted itself in front of me, i picked up the phone and felt that the lower back of the phone was quite hot.. Turning off the wifi seems to have allowed the phone to cool and no random restarts thereafter.. Anyone encountered the same?
Click to expand...
Click to collapse
I noticed this twice. I plugged it to an ac outlet and it began to sync with Zune on PC. I was adding a bunch of new playlists and after a while I caught it restarting. At first i was excited; i thought T-Mobile had sent out an update or something. picked up the phone to embrace the new goodies and then felt the warmth of the phone.
I turn off wifi now to prevent Zune sync unless I need it.

Screen stays off / frozen after a few minutes

Hi guys,
My Watch Sport seems to have developed some issues in the last two days.
The screen wouldn't come on (I don't have always on turned on). I restarted it, and it was ok for a couple of minutes, then the same.
I turned on "always on" in display settings to trouble shoot, and the same thing happened - only now, the screen was frozen when it stopped working.
The watch itself seems to be running as I noticed some battery drain even with the screen off.
I did a factory reset from the UI, not luck. Did a wipe from recovery. Same issue.
Has anyone had a similar issue before?
Thanks for your help!
Update - The problem still exists, but I narrowed it down.
I turned off the watch, fully charged it and powered it on. Turned on everything that could be turned on and let it sit on the table. Checked it every now and then, it seems to be working. Ran the battery out, recharged it and did the same for about 2 more cycles. It seemed to work. The only times this 'freeze' happens is when I wear it, which got me to thinking it's probably the hear rate sensor. Opened Fit and started reading the heart rate - if it's not on my wrist, the sensor just keeps going on for a minute or so and then turns off. But if I so much a put a finger on the sensors, all it takes is 30 secs, and it freezes.
Let me try to get some logs over the weekend.
For anyone that's wondering. The watch is alive again. After about 4 months of collecting dust, I figured I'll boot it up and see how it holds up.
Turned it on and charged it for a couple of hour, then the latest Wear OS updated was pushed - a couple of them actually.
Let it sit in the cradle for a day, and wore it, without expecting much. Been about 5 weeks now. No crashes or freezes. Battery lasts much longer - about 2 days with LTE & NFC off.
One thing to note though. Up until a few weeks ago, I used to charge it via usb from my desktop. Since the last reboot, I started charging it using the wall plug.
Not sure if it was this, or the new Wear OS that fixed the issue, I'm glad it's working again and I don't need to go back to my Gear S3 and Tizen *cringe*

Random restarts, how to narrow down cause?

I've had my Note 8 since launch and have been putting up with random restarts every few days (even happened mid call a couple of times) so I took the plunge and factory reset it a week ago. I purposefully only restored the most essential apps to rule out any of them as the cause.
Over the last week, I've had a few restarts and noticed that they occur when the phone is coming in/out of sleep e.g.:
Taking the phone off wireless charge, the screen tries to turn on but it just turns the phone off.
Putting the phone on wireless charge, the phone goes to display the wireless charging indication halo thing then just shuts down.
When I've had a notification come through when I'm out and try to turn the screen on, then it restarts.
These have only happened once each time so I can't repeatedly try any of these out to see if I've found the cause. Has anyone else experienced anything like this or know how to narrow down what the cause could be?

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