Samsung Galaxy S II :: Keeps Randomly Rebooting?
Jun 29, 2011
So far this has happened 3 times:I was listening to music on the phone and then suddenly it stoped and played the startup music. When I unlocked the phone it had a blank screen and only a couple of icons at the top, one being the battery indicator. A few seconds later and its fully rebooted with signal strength etc
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Aug 10, 2010
I have a Gravity 2 which is randomly shutting down and rebooting.Anybody else here experienced the same issue, and if so is it correctable? Network = WIND Is there newer firmware available for it?
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Oct 14, 2014
the phone maybe 6/7 weeks ago, plugged into laptop, checked up to date, restored some data from S3 backup, installed a few standard apps, all good.. After two weeks or so phone starts randomly rebooting - not with any specific app, could even be sat on the table and you'd suddenly hear the start up noise. Spoke to EE Support, tried some 'resetting the network' thing from their end, no change. Called again and was passed to Samsung Support - talked me through a hard reset. No change. Posted back to Samsung. Came back a few days later saying no fault found but they wiped it, updated it and it's good to go. Booted and phone was crashing every time I opened Internet and a few other apps. Didn't get as far as installing apps or backup. Posted back again. Phone came back again, no fault found but same problems straight out of the box. Called and explained again, posted again, this time they've told me that the phone has been damaged and is beyond repair and included a screenshot of a screen saying 'Know Warranty VOID 0x1'.
After having a rant about their packaging and that it must have been knocked in their support centre (yes, that is my level of knowledge of phone rooting) I've just Googled and found it actually means that the phone has been rooted. The phone definitely hasn't been rooted by me on purpose and the only update I've run is through Kies. The only apps installed via Play Store. Is it possible that something that Samsung Support has done or asked me to do has changed this flag?
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Nov 1, 2011
i use Samsung galaxy s2 with the latest firmware version from Samsung kies (ginger bread 2.3.5) , the problem occurred after installing external SD card and move bunch of apps to it,i tried removing the external sd card from my device, the device stoped rebooting, when i insert it again the device keeps rebooting over and over, the problem is obviosley is moving apps to SD card, i tried to delete the content of the file (andro secure) in SD crad this file includes the moved applications from phone memory to external sd, the problem also stoped
its one of the two: 1- android do not accept lots of apps in external sd or 2- there is a problem in a specific app in external sd which make the phone rebooting over and over but i don't know which app is causing the issue because i have lots of apps installed !
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Apr 14, 2012
my s2 has just started rebooting itself over and over and im not sure what steps to take so asking for some kind advice please.
I updated to ICS via kies around 12.30 this afternoon from gingerbread (after backing up my phone). My phone is branded vodafone but unlocked and is using an o2 Sim.I cant tell you any build numbers etc. The furthest the phone boots is as follows... turn on, the booting logo, sim card unlock pin, pattern unlock screen, once unlocked the screen is black, after 30 seconds or so, it reboots and does the same again but minus my sim unlock screen. It reboots to the pattern lock screen instead.Ive barely used it all day other than to take a look at whats new, i was about to begin a txt message when it randomly rebooted and just restarts.
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May 12, 2012
I went to settings and then About Phone. Subsequently, I checked for updates and after that I tried updating my phone. The file size was around 12 MB after which it proceeded with rebooting the phone. Unfortunately my phone is not getting rebooted after the software update. It is stuck with the screen showing "Samsun Galaxy S2 GT-19100G". The welcome note with the music screen is also not appearing.
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Feb 12, 2012
when I have tethered for a while, if I reboot the phone afterwards, my battery drops by around 30% just on the reboot. For example, if I have 44% left after tethering and then reboot by pressing and holding the power button until the phone reboots, by the time it's finished booting (which isn't long) it has dropped to 14% and it tells me to plug the charger in. If I don't plug the charger in (this is a real mystery this bit), every few minutes, the battery will keep increasing by 1%. This is without really using the phone much that it does this. It will keep regaining that 1% every few mins until I reboot the phone again and it remains at whatever it's got up to during that time.
I'm ringing Samsung tomorrow as I am pretty sure this isn't normal behaviour. However, I would like to ask if somebody might be kind enough to tether for about half an hour or so with their s2, then reboot (using power button and holding it til phone auto reboots) and tell me if you also lose more power. And then of course, see if it starts to creep up again.I know that's quite a big ask and would only advise somebody with truly unlimited data to try it as tethering consumes a lot.Bear in mind that tethering also drains battery anyway so make sure you have at least 60% prior to trying this just in case you lose the power too.
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Jan 21, 2012
Ok my phone has started having a lot of problems recently. Its turning off and on randomly, the screen colour gets messed up at random times, like completely messed up, the wifi is a little messed up and it seems to be pretty slow So i was just wondering whats the best way for me to do a complete reset? Its on 02 btw.
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Jul 10, 2012
Having a bit of a problem with my phone, it just keeps shutting off randomly. I just came back from holiday and noticed it recently. It shuts off in random intervals, sometimes a couple of hours and sometimes 30 minutes or less. I doubt it has anything to do with the software as it was fine before i went on holiday, and now it keeps acting up.
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Dec 3, 2011
This may be a coincidence but ever since I updated to Android 2.3.5 my phone will randomly re-start itself. It definitely didn't happen before. So for example the screen will be locked, nothing happening with the phone, good battery life, (e.g. overnight) and it will suddenly re-boot. It's doubly annoying because I have a PIN SIM so it's stuck at the PIN screen, without network coverage, until I discover it and log back in. My carrier is O2 (UK) but I don't think they're at fault, it's a 2 year old SIM without any previous problems.
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Mar 3, 2012
My S2 in the last 2 days has suddenly turned off while in my pocket. It's happens sometimes, Once, Twice a month.
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Sep 11, 2015
This has only started to happen today since I agreed to a system update. I have tried a factory reset and wiped the cache but it is still happening.
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Jun 30, 2012
So two weeks ago I decided I want to upgrade my SII. I connected with Kies and I started with upgrade. Everything went fine until I restarted my phone. Ever since then my screen completely randomly turns itself on, like I pressed any button. It's really annoying and I don't know how to fix this. I even removed most of my applications I downloaded from Market Play.
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Jun 14, 2011
I've recently been experiencing on my SGS II that it shuts itself down in the night (usually at similar hours). I have also done some research in this matter and found out that this was also plaguing the previous Galaxy phone. I have the latest KWE7 update and i'm pretty sure it didn't happen before that.
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Oct 3, 2012
Yesterday for no reason my phone started activating a "Car Mode" feature draining the battery into nothing even after its fully charged. the screen is also rotating even when i have auto rotate off and is also starting freeze. it keeps connecting and disconnecting into Kies via USB despite the USB not even being plugged in.
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Jun 16, 2015
the stock Samsung keyboard will randomly capitalize words which aren't capitalized while typing. It happens to random words in the middle of the sentence.
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Nov 2, 2015
Over the past several weeks, while not being used (ie lock screen) my phone has randomly played about 10-20 seconds of audio while the screen remains black. It has consistently been from what seems to be a video where the person is showing a DIY for auto repair. When I unlock it i do not find any video apps open. I have not viewed any videos like this but this seemed to start after i was looking at some cars for sale online.
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Aug 9, 2012
my samsung galaxy s2 is acting very weird lately.
here are the symptoms i encounter:
1. video randomly pauses - after ~20 to 30 seconds of playback, the back light turns off and immediately goes back on and resumes playback. this is regardless where the video is stored.
2. online videos (e.g. from Internet) randomly pauses - after ~20 to 30 seconds of playback, video is paused and streaming is also restarted.
3. camera momentarily freezes - video display turns off and immediately goes back on as if it has recovered from an error. same is encountered when using the front camera.
also, if you know the web browser 'dolphin', it has a feature of 'keep screen on' that will keep the back light on even if there is no activity on the phone. however, since my phone is acting weird lately, the backlight of my phone turns off after some time even if the 'keep screen on' feature is enabled.
this gave me an impression that the problem must be somewhat related to the backlight or memory. but i am not really sure. i tried to power off the phone, removed the battery, removed the sim, removed the sd, but the problem still persists.
this is annoying as hell because i cannot watch videos smoothly anymore and my video calls randomly stops.
other details of my phone:
- not rooted
- android version 2.3.3
- system storage 894mb free out of 1.97gb
- usb storage 5.66gb/ 11.5gb
- sd card 192mb / 1.9 gb
- ram ~400-550mb / 837mb
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Dec 30, 2014
I have gone through every solution given, every method that were suggested and still it is rebooting randomly.
The rebooting occurs randomly, it can happen when I'm using the phone, it can happen when I'm not using the phone, it can happen when I charge the phone. But sometimes it work just fine. The most days I have gone without the phone randomly rebooting is 2 days.
I also noticed that before the phone starts to reboot, the screen will freeze and the back will heat up. During the annoying reboot, the phone can be hot. I think this has to do with the battery, but I am not entirely sure since I don't know what I'm dealing with. The most irritating part during the reboot is, the cellular network will not work and when it stops rebooting, the cellular network stay to not working. (My phone is unlocked and I know this because I have been using the phone with 3 different network in the past). The only way for me to get the cellular to work again is to wait for the reboot again or try to manually rebooting the phone several times until I get the network to work again.
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Jul 28, 2012
I bought my Xperia Pro today and so far my experience with it has made me very disapointed.
First start up, everything looks ok, trying to conect to WiFi and... gets stuck there and fails to connect. I thought maybe I just needed to update the mobile phone and it was fine so I did exactly that. Since then, my new Xperia Pro just keeps randomly restarting for no apparent reason. I've tried repairing it using PC Companion but same effect. SIM card is new, goten same time has the mobile phone.
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Mar 14, 2012
my phone keeps rebooting at random times . how do i make it stop?
Info:
iPhone 4, iOS 5.0.1
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Sep 30, 2012
I'm having a scary problem, which my friend had, which lead to her phone being a complete destruction. Basically, the battery is full, yet drains very easily, and then suddenly reboots and the battery power is gone back up etc. The random reboots are worriying me, as well as the battery.
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Jun 6, 2012
it keeps rebooting randomly, up to 5 times a day?
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Aug 7, 2011
They will automatically shut down and reboot. It seems to be very sensitive to being set down, even into my purse. It is random and can happen constantly or just a few times a day. It is showing the water damage indicator on the battery, but neither phone has really every been wet. The person at our retail store said it is very sensitive to humidity -(such as being in the bathroom during a shower) and we have had very high humidity levels in our area lately, but that seems rather extreme that our 2 1/2 month old phones can't stand the heat and humidity? They are both working properly if we can get them to stay on.
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Apr 15, 2010
i am now on the 3rd Storm in as many weeks. Each one suffered the same problem. Random reboots/restarts.Phone 1 was the worst - I purchased it as a 2month old used unit. I wiped it clean at purchase and setup for my use. I did not enable Blackberry services with Vodacom for 2weeks. In that time it behaved with no problems. A day after enabling BB Services with service provider the random restarts would happen. It was primarily during BB Messaging, but was not limited to that. It would restart during calls. Other times i would pick it up off desk and see that it restarted. (pin was requested).There were times that it would restart 3 to 4 times in succession before eventually "stabalising"i visited Vodacom and was told that all Storm 2's before Mar 2010 were recalled" I was given a replacement unit.Phone 2 - Service Provider configured phone for me and restored only contacts. emails and messages. Next day restarts began. Display goes white and error message displays for a few seconds. Then phone restarts. It would reboot totally randomly. Taken from pocket. whilst driving, during a call, laying on desk. Vodacom gave another unit after testing it for a few hours.Phone 3 - Only contacts restored. Original OS and settings used. Random restarts 3 times in one day as with phone 2. It however seemed to be "worse" at certain location "my office".A technincian suggest setting to 2G only. This worked okay for 2 days and then i took from pocket and it had restarted.Event log just said powered off and powered on. No error message.This is a day later and no more reboots. But phone still on 2G.I see that restarts/reboots are common place with the Storm2 and wonder if it is a design fault.i am gonna re-enable 3G and watch again.
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Jan 27, 2012
The phone will randomly reboot itself, especially after i finish using it and close the slider. I tried doing a complete wipe on the device using BBSAK and reloaded the OS.... but nothing. I had version 7.0.540 then upgraded to .585 then even updated to 7.1.0.190. I got rid of a lot of apps and problem still persists. It is still usable but its very annoying when it reboots on me like 4-5 times a day. ?
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Feb 8, 2015
I got a new phone. It's Xperia Z2. It's almost new and it is already randomly freezing and rebooting. I've already tried soft resseting, hard resseting, factory data reset and repairing with PC companion.
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May 16, 2012
I recieved iPhone 4s for Christmas and it worked fine for about a month then it started rebooting randomly. I tried factory restores, DFU and anything else (no it was not wet) and nothing worked. I took the phone to Apple in early March and they replaced the phone and instructed me to not restore from back on my computer so I did not - I still have not. It contines to reboot so I thought maybe it's a bad sim card so I got a new one. I have uninstalled iTunes and reinstalled it and still no change.
Info:iPhone 4S, iOS 5.1.1, crashing, rebooting
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Jun 4, 2012
my bb 8820 randomly reboots by itself, it happens when i listen to music then suddenly when i choose the next song the led would turn red then it would reboot.
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Jun 10, 2012
my device is rebooting randomly. Today I took it for a run and I didn't recharge it last night, because I know it still has some battery left. But when I was outside it coudl not be turned onl. When I arrived at home I plug power to the device and it was turned on instantly. The motoactv showed that it still has 60 percentage of battery, and not long it charged instantly to 100 percent
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Jul 1, 2014
My phone is powering down on its own and rebooting on its own. I have tried restoring to factory settings and resyncing from a back up and it didn't work. There r several codes under my Diagnostics and usage. What's wrong with my iPhone5?
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