Galaxy S7 freezing and restarting - Samsung Galaxy S7 Questions and Answers

Hello everyone,
My galaxy s7 started freezing and restarting. It sometimes even doesn't start on its own and gets stuck at 'Samsung' screen and I need to press volume down+home+power buttons. Most of the time phone gets hot when this happens. But I noticed it can even happen when the phone isn't hot at all. I tried doing a factory reset and this didn't help. Still the same problem. I guess this is a hardware failure, right? Anyone had a similar problem and had it fixed? Can this be because of a faulty battery? But other than this problem, there isn't a visible problem with the battery such as discharging quickly.Thanks..

Deuce0001 said:
Hello everyone,
My galaxy s7 started freezing and restarting. It sometimes even doesn't start on its own and gets stuck at 'Samsung' screen and I need to press volume down+home+power buttons. Most of the time phone gets hot when this happens. But I noticed it can even happen when the phone isn't hot at all. I tried doing a factory reset and this didn't help. Still the same problem. I guess this is a hardware failure, right? Anyone had a similar problem and had it fixed? Can this be because of a faulty battery? But other than this problem, there isn't a visible problem with the battery such as discharging quickly.Thanks..
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Click to collapse
The battery doesn't have to be hot to be failing. The S7 battery is only designed for 500 cycles of recharging after that it starts to cause problems.

Related

5.1 random crash and "imaginary" battery drain

Hi guys, I'm hoping someone can help..
For the last few weeks my Nexus 5 has been randomly crashing, this has progressively worsened. The phone crashes and completely shuts off, one second it will be working the next it will be off. When I turn the phone back on it thinks the battery is almost completely drained and, when the problem wasn't as bad, the battery level would slowly increase when left.
Now the problem has increased that, when it crashes, the phone will either not fully boot or crash again very soon after starting. The only way to keep the phone on it to have it plugged in, this also seems to prevent the crashes.
I have factory reset the phone and reflashed the latest factory image. I am also rooted.
I've attached two logcat files that I started recording before the phone crashed.
Any advice on how to fix this issue would be appreciated.
Thanks
slightperil said:
Hi guys, I'm hoping someone can help..
For the last few weeks my Nexus 5 has been randomly crashing, this has progressively worsened. The phone crashes and completely shuts off, one second it will be working the next it will be off. When I turn the phone back on it thinks the battery is almost completely drained and, when the problem wasn't as bad, the battery level would slowly increase when left.
Now the problem has increased that, when it crashes, the phone will either not fully boot or crash again very soon after starting. The only way to keep the phone on it to have it plugged in, this also seems to prevent the crashes.
I have factory reset the phone and reflashed the latest factory image. I am also rooted.
I've attached two logcat files that I started recording before the phone crashed.
Any advice on how to fix this issue would be appreciated.
Thanks
Click to expand...
Click to collapse
It's normally an issue with the battery. When the device thinks the battery is dead (due to sudden voltage drop probably), it shuts down.
Aerowinder said:
It's normally an issue with the battery. When the device thinks the battery is dead (due to sudden voltage drop probably), it shuts down.
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Click to collapse
Thanks for replying. Does this mean if it have the battery repaired/replaced that the issue should go away? Are there any apps anyone could recommend to check if the voltage is the issue?

Nexus 5 keeps rebooting

So I was texting the other night when my phone just rebooted. I see this is a common thing nowadays, but my problem is a little bit more f'ed up. My phone reboots and gets stuck at the Google screen, sometimes it goes past that, to the spinning dots, but just for a second because it reboots again, and again, and again. I tried booting it up with Volume Down + Power button, it get's to the bootloader screen but again, just for a second, because it reboots. I am sure that it is not the battery that is drained because I left the phone charging over night.
Can someone please help me?
Stuck power button issue?
Can you explain please? If this is the case, what should I do?
I never had that issue - I just read about it a few times. Maybe try searching the forums RMA maybe?

[Completed] Dropped Note 2, Stuck at boot screen, Works fine with different battery, Why?

Note: This is different than other "Stuck at boot screen" posts. It has a different case and I couldn't find any solution relevant to this problem.
I dropped my note 2 and battery got out of it after hitting the ground. I put the battery back in and restarted the phone, it worked fine for sometime. Then it crashed and restarted with a strange behavior. It loaded first screen showing Samsung Galaxy Note II N7100 and kept on restarting without even responding to power+home+volume up keys combination. It turns on, stays on the Samsung note II screen for a couple of seconds and restarts. Then I took out the battery and plugged in another one (I keep an extra battery with me) and phone started working. What could have possibly gone wrong with the battery when it dropped and if the battery got damaged, I guess it shouldn't even be able to turn on the phone and make it keep restarting? Has anyone experienced this case?
Hi, thank you for using XDA Assist. I don't know why you are experiencing this. What happens when you put the original battery back in? It might have just been a random error.
jd1639 said:
Hi, thank you for using XDA Assist. I don't know why you are experiencing this. What happens when you put the original battery back in? It might have just been a random error.
Click to expand...
Click to collapse
Just to make it clear,
Put the original battery
Turn on the phone
Shows first screen saying "Samsung Galaxy Note II N7100"
Stays on it for a couple of seconds
Restarts
Keeps repeating (Doesn't respond to Power key or Power+Home+VolumeUp key combination)
Forcefully remove the battery
Plug another battery
Turn on the phone
Works fine

Is my phone dead?

Hello, I am using galaxy S3 stock rom and my phone keeps shutting down/rebooting when I am using it. Sometimes I let it charge and 20 minutes later it turns off and I have to try many times to boot it. Many times I let my phone on airplane mode at night at 53% battery and It drains completely. I tried other batteries but still the same thing. Did anyone ever experience this?
Thanks
spiritblastt said:
Hello, I am using galaxy S3 stock rom and my phone keeps shutting down/rebooting when I am using it. Sometimes I let it charge and 20 minutes later it turns off and I have to try many times to boot it. Many times I let my phone on airplane mode at night at 53% battery and It drains completely. I tried other batteries but still the same thing. Did anyone ever experience this?
Thanks
Click to expand...
Click to collapse
looked here? http://forum.xda-developers.com/galaxy-s3
Sent from my KFFOWI using Tapatalk
If you're sure it's not a battery problem, and you've run a battery calibration after backup, factory reset, and restore, just to be completely positive, you might want to see if it is a power button issue. The internals of the button get stuck every so often, and I found that when it was usable, I still got huge battery drain, and sometimes turning off and on by itself. There was a place near me that fixed the button on my S4 mini for $15, worked just like new.
I found that the phone was losing battery when when turned off, try leaving it off overnight and if it drains, it's probably an issue with the button.
If it's just a software problem, then that won't help. What does the OS say is using the battery? Maybe check for wakelocks with a battery saving app, I'm sure someone could recommend something
Cortmarshall said:
If you're sure it's not a battery problem, and you've run a battery calibration after backup, factory reset, and restore, just to be completely positive, you might want to see if it is a power button issue. The internals of the button get stuck every so often, and I found that when it was usable, I still got huge battery drain, and sometimes turning off and on by itself. There was a place near me that fixed the button on my S4 mini for $15, worked just like new.
I found that the phone was losing battery when when turned off, try leaving it off overnight and if it drains, it's probably an issue with the button.
If it's just a software problem, then that won't help. What does the OS say is using the battery? Maybe check for wakelocks with a battery saving app, I'm sure someone could recommend something
Click to expand...
Click to collapse
I Just played around with the power button because there was some dust and removed the battery and tried cleaning the metal things. I tried it today and it did not shut down once, i will see how it goes.. :good:
spiritblastt said:
Hello, I am using galaxy S3 stock rom and my phone keeps shutting down/rebooting when I am using it. Sometimes I let it charge and 20 minutes later it turns off and I have to try many times to boot it. Many times I let my phone on airplane mode at night at 53% battery and It drains completely. I tried other batteries but still the same thing. Did anyone ever experience this?
Thanks
Click to expand...
Click to collapse
I had a problem which was similar to this but the phone I got is LYF Flame 7.
My phone was automatically shutting down a few minutes after the device is locked, I investigated every setting to check whether anything like auto shutting down or sleep or something was enabled , but every settings were okay but the problem continued.
When I bought this phone, I was disabled a lot of useless stock apps . I re-enabled all these apps to their default and then the problem is solved.
So you just try reverting your apps to their default,if you have tried to disabled it.
Clear its Cache and Misc
Also try a factory reset and try to boot the phone without any SIM cards and SD card.
In my knowledge , I think , the problem of your phone is software related and hardware is okay.
And keep investigating in S3 threads.

Phone keeps shutting down after locking the screen

Hey there, i have a smartphone (android 5.0.2). it has a bootlooping problem, it turns on at a certain battery percentage. I can keep the phone on as long as i keep the screen on. the moment the screen locks, the phone shuts down automatically and goes to bootloop again. for the bootlooping i tried to install a fresh stock firmware and it helped a little with the bootloop. not that it doesn't bootloop, but it turns on faster. for the shutting down i thought maybe the battery needs to be calibrated so i tried calibrating the battery. the phone is not rooted so i tried the alternative with apps as well as charging to 100 and fully discharging it. it helped with displaying the percentage correctly but it still shuts down when its screen locks.
so first of all what could be the reason for bootloop and how to fix it, secondly what causes the phone to shutdown when it locks the screen.
is it a hardware problem? also the phone is LG G2.
Update: just changed the phone battery and it still boot looping. any ideas what else could cause this problem?

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