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Old January 10th, 2012, 11:01 AM   #101 (permalink)
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Originally Posted by Russell Ng View Post
Anyone figured how to resolve the reboot under 2.3.6

Updated 2 days ago. Yesterday was fine, but it rebooted twice today.


Same problem here, few weeks now... sometimes 1 or 2 days no problem and sometimes the problem 2 or 3 times a day...

Skype removed.
Battery removed.

Nothing so far...

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Old January 11th, 2012, 02:42 AM   #102 (permalink)
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Last night I decided to try the battery removal idea.

Let's wait and see what happens!
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Old January 11th, 2012, 05:33 AM   #103 (permalink)
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Originally Posted by Lol mahmood View Post
It's not a constant problem, but at least every three or four days my new S2 (unbranded, sim free, from CPW, on KE2) suddenly reboots. It does it quite quickly, and occasionally two or three times in an hour or so.

Has anyone else experienced this? I love the phone, it's the beast the SGS should have ben in the first place, but the random reboots are irritating.
i had the same problem after upgrading the firmware to 2.3.6 using kies. i think the new firmware is kind of buggy
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Old January 13th, 2012, 06:27 AM   #104 (permalink)
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Hey guys, what shall I do?
After the update to 2.3.6 using kies, really my loveable SGS2 is frequently restarting. I tried even removing the battery, SIM, SD Card and again assembled. Does the same - restarts!

I don't this again to happen. How do we reinstall the whole again?

I even tried factory reset, and setup all the apps again, but started restarted again of its own when its idle.

Is Samsung aware of it? How do we get an immediate fix? Any patch or update on the air coming up for this?
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Old January 13th, 2012, 11:44 AM   #105 (permalink)
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Hello friends! Someone who can help me with my galaxy s2! When I restart the phone appears on the screen "downloading software", and thereafter does nothing. To repeatedly restart the same thing happens. If someone could recommend a solution. thank you!
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Old January 14th, 2012, 02:18 AM   #106 (permalink)
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Default sgs2 keep on rebooting...

hey guys ive been using dis phone almost a month and it keep rebooting like 3 to 4 times a day even i left my phone alone and sometimes when i open and want to play games it got hang and restart please help....what could be the problem i love this phone...
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Old January 14th, 2012, 08:30 PM   #107 (permalink)
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Hi, I just upgraded my S2 firmware to 2.3.6 yesterday via Kies (from 2.3.3) and I started to experience the same problem. I think my unit rebooted 3 times yesterday after the upgrade. Is there any findings yet and concrete solution on how to resolve this issue?
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Old January 15th, 2012, 09:40 PM   #108 (permalink)
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got the same restarting issue here:
My findings: After many experiments I found that if I switch off all sync (background data + sync) switch of WIFI and Data traffic, then it doesn't hang in the restart loop.
Once it had safely started I switched on the sync,wifi.......again.
After this I moved all software, which is TSR (terminate and stay resident) from SD card to the phone memory. And.voila now my phone doesn't restart itself.
Conclusion: IMHO it is a mix of problems. If the phone has software running in the background (like syncing or other background activities) while it is restarting and scanning the SD card, then it hangs in a loop. If this software installed not on the SD card, then it doesn't seem to effect the SD card scanning process.
However, this is not a scientific approach it done by try and error.........
but it works, at least on my phone

hope it helps
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Old January 16th, 2012, 07:21 AM   #109 (permalink)
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I have discovered that my S2 only does a restart when it is running on batery power and the wifi is turned on.

I recharge overnight mostly, but have been experimenting with the restart issue, if the phone is plugged in to the power supply and the wifi is on overnight I have no problems. When I leave it on battery power with the wifi on then the next morning I am greeted with the password screen for logging in. Battery power and and wifi off and I have no problem again.

The timing of the restart seems very haphazard though.

P.S. I have had no reply from the Samsung help desk in over 2 weeks since I reported it.
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Old January 16th, 2012, 06:06 PM   #110 (permalink)
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I've also had this problem for the month or so since I "upgraded" to 2.3.6. Sometimes it reboots 2 or 3 times in a day. Sometimes it goes a few days without rebooting. I took the battery out for 20 minutes, and it didn't reboot for a few days after that, but then started doing it again.

Worst part is probably that notifications are lost after a reboot. That seems like a separate bug to me. Surely it should remember what notifications were pending even if the phone is rebooted?
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Old January 17th, 2012, 10:32 PM   #111 (permalink)
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Surprisingly, I got a rather quick reply from Samsung (below). Unfortunately they just suggest I take the phone in for service, but no one seems to have an answer to this issue, so how would the service centre be able to fix it? Presumably they'd end up wiping the phone and re-installing everything, which from other reports won't fix it, so it seems a bit pointless. They also wouldn't be able to test it as it's so intermittent.

Has anyone else with this problem taken their phone in for a service?

Quote:
Dear Robert,

Thank you for contacting Samsung Customer Care.

If you are having problems with your handset since your firmware upgrade, I would recommend contacting Optus to organise to get your handset serviced, or you can send it directly to a Samsung Authorised Service Centre.

Please contact Samsung on the number below for details of your nearest Authorised Service Centre and to organise a Service Authorisation Notice.

If you have any further enquiries, please do not hesitate to contact Samsung Customer Care on 1300 362 603.


Thank you for contacting Samsung.
Kind regards,
Robert
Samsung Customer Care
http://www.samsung.com.au
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Old January 18th, 2012, 01:54 PM   #112 (permalink)
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Today they released an update... perhaps this will fix the problems...
So far so good...
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Old January 18th, 2012, 09:44 PM   #113 (permalink)
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what update is that? where can i get it?
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Old January 18th, 2012, 11:24 PM   #114 (permalink)
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Yes I am facing the same problem after updating the firmware to 2.3.6 and it happens once in 3-4 days. Today I was in a call and it happened.
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Old January 19th, 2012, 01:32 AM   #115 (permalink)
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Default The problem is the SD card

For all you guys having the resetting issue, try removing the SD card and see how that works. My SG2 (2.3.6) keeps rebooting randomly if I insert my 32Gb Kingston SD card. I tried all solutions around here but nothing worked. Even keeping the card unmounted didn't work, still rebooted. Took the card out, no more random reboots.
It could be related to 2.3.6 since on the stock 2.3.4 i had I didn't notice the issue. But anyway, take the card out and see if your phone is ok then.
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Old January 20th, 2012, 09:43 PM   #116 (permalink)
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Originally Posted by butch07 View Post
yes had same problem rang samsung and asked to speak to a technician he gave me a code *2767*3855# to key into my galaxy s2 keypad have not had problem since three weeks not 1 reeboot just remember to back up your contacts etc as this will wipe your phone clean and seems to get rid of all the crap
please forgive my ignorance but where and when do you enter that code.
Also I'm in Australia does that make a difference?

Regards,
Trev
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Old January 21st, 2012, 09:16 AM   #117 (permalink)
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You enter the code in the dial pad, same place you use when typing a number to call. Tap the call icon on the homescreen and swype the top part to the right. Dial pad is far left.

There are many codes that you can type in it that gives you different function / information. I've seen a list here in the forum before. This particular code is for factory reset the phone I think. So think carefully before doing it.

Does not matter country since its phone specific


Cheers
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Old January 21st, 2012, 05:30 PM   #118 (permalink)
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a shame. after new fw it looked good for one day but today 4 times already...
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Old January 21st, 2012, 05:31 PM   #119 (permalink)
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Originally Posted by barryyam View Post
what update is that? where can i get it?
update via settings -about
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Old January 27th, 2012, 08:49 PM   #120 (permalink)
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Default It's not the Gingerbread version

Hi, just thought I'd pitch in as I'm experiencing the same issue and you guys seem to have come across a lot of interesting stuff.

I've had the phone for two months now and the problem only started today. I'm on Gingerbread 2.3.3 and my phone reboots automatically when it happens. In fact, I was listening to music at the time (multiple times after) and the music doesn't stop until I hear the welcome chimes.

It hasn't happen before... what I was doing different today is I usually use an A2DP stereo Bluetooth and it ran out on me so I connected my headphones directly in the phone... and that's when it all started. I do have a 32Gb SD card (by Lexar) inserted, that is where my music is. I'm also using the optional extended Samsung branded battery that comes with its own cover and it is so tight that I could not fit a piece of paper at the bottom (I've had that battery for more than two weeks now).

I can confirm that holding the power button down closes and restarts the phone when locked with password (without a prompt) and my holder is a pretty tight fit (I've had the holder as long as the phone). Maybe the headphones plug pushes the power button into the holder but I must also admit that I started using IMO yesterday and I've got a Skype account logged through it permanently since (and other ones as well).

No matter how hard I shake the phone it doesn't happen. Some of us may have different sources to the problem but I thought I'd share what I have observed on my side in hopes of solving this issue with you guys... on an otherwise amazing phone.
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Old January 28th, 2012, 11:51 PM   #121 (permalink)
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Originally Posted by Friends4U View Post
update via settings -about
I think the real question is what version of android did you just upgrade to seeing as most of us are having issues with 2.3.6. I think we all know how to check for updates, so it would be interesting to know what version they are rolling out, unless you have just upgraded to 2.3.6 yourself.

Back on topic, and part of the reason why I have registered, my handset has been doing this for a couple of months. First major problem was the external speaker had died (couldn't hear any audio from the phone ringing to music playing) that was fixed by a 3 week visit to the Samsung Dr. Nowadays the phone just resets randomly, and well, this isn't a problem for me untill today when I noticed several strange things.

1)MTP connection will connect when the phone isn't connected to anything.
2)The phone would hang on the screen lock screen, burning battery life and then rebooting.
3)lost the external speaker during one reboot cycle with all audio coming from the earpiece (didn't know that was possible).
4)during all of this the battery went from a 80% charge to 17% in less than an hour.

I havn't played around with it since sticking it on the charge, but thought I would get these extra symptoms out there incase other people have had it happen. I hope ICS will clear all these issues up.

Oh and my phone isn't rooted, has Optus bloatware and the screen is starting to show signs of "burn in" where the status bar is. :S despite these issues... best phone I have ever had
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Old January 29th, 2012, 12:04 AM   #122 (permalink)
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Hi,

I removed all the applications installed( not the songs or photos) on my SD card and i put them all in the phone memory and its working fine!! No more reset and i can turn off my S2 without anymore problem!! Good job my friend!! Thank you very much!!

Take care
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Old January 29th, 2012, 11:35 AM   #123 (permalink)
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Confused

My phone started rebooting and placing all icons which was in folders btw on the apps screen spreading them out on 10 - 20 windows. it restart 3 - 5 times a week. after placing the icons back into the folders and it restarts again all apss are placed outside of the folders again.

software loaded:
Android version: 2.3.4
I9100XXKI1
Kernal: 2.6.35.7 - I9100XWKI4-CL575468


could this update be an problem?
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Old January 30th, 2012, 03:43 AM   #124 (permalink)
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Default rebooting

It would seem that most people have trouble with version 2.3.6.
I have the problem on 2.3.5 (ireland).
I have now moved skype from the sd to the phone memory -so we will see.

Still rebooting --now removed chomp and runkeeper from sd card.
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Old January 30th, 2012, 11:14 PM   #125 (permalink)
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For what it's worth, I don't have ANY apps installed to the SD card, and never have. They are all installed internally. But I still have the reboot issue. The SD card just has photos and music.

I do have a 32G SD card. I notice a few other people mention that too. Does anyone have this reboot problem with a smaller card?
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Old January 31st, 2012, 12:41 AM   #126 (permalink)
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How do you know you do not have any apps installed in the external microSD card? You need to go to "Settings/Manage Applications" and under the On SD tab, look for any apps that are marked. You won't know if you try searching your external microSd card using My Files since those files are hidden. You can connect to PC and browse that way. There should be a folder Android_secure where these files are kept.

Not sure why the phones reboots, but if keeping the apps off the SD card works, I guess its still a good way.

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Old January 31st, 2012, 06:40 AM   #127 (permalink)
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Angry

I have a 16GB SD card and mine reboots. It only ever reboots in the evening and it seems when WiFi is on as it never reboots at work where my WiFi is switched off. Mine often reboots just sat on my desk, not even in my pocket!

My WiFi is switched on usually about 5pm and by about 8-9pm is when it rebbots. Super pain!

I have a couple of games on my SD card but the majority are on my internal memory
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Old January 31st, 2012, 11:57 PM   #128 (permalink)
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Quote:
Originally Posted by Russell Ng View Post
How do you know you do not have any apps installed in the external microSD card? You need to go to "Settings/Manage Applications" and under the On SD tab, look for any apps that are marked. You won't know if you try searching your external microSd card using My Files since those files are hidden.
Oops, I stand corrected! Sill learning how this thing works. I do have quite a few apps ticked on the SD tab.

I presume if these really are causing reboots, then it should only be the ones which are running that could possibly cause the problem? In other words, if I find the overlap between running apps and apps on SD card, then in theory I should only have to move those.

Hard to imagine having apps on the SD card should matter, unless it's access to the SD card itself that's faulty, in which case any access, such as playing music, should be just as likely to cause the problem. Probably more likely due to more data being accessed.

Thoughts?
Rob.
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Old February 1st, 2012, 03:49 AM   #129 (permalink)
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Not sure why having apps data in external microSD card can cause reboots. My reboots last time was likely caused after firmware update and likely due to clashing of old firmware remnants with new. Anyway, it hasn't happen in quite awhile and I think its cleared up. Maybe the old cache have been rewritten by the new after some period of use.

I usually don't keep apps in the external microSD card. Not because of reboots. Sometimes the apps are there after updates and could be there for quite awhile and mine does not reboot. But usually I prefer having the apps in the phone memory itself. The reason is the external microSD card is read last and during startup, sometimes the apps don't get loaded properly.

Music, Video is fine since its not being run on its own. I think anyway.

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Old February 1st, 2012, 06:06 AM   #130 (permalink)
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Quote:
Originally Posted by CargoMatatu View Post
Last night I decided to try the battery removal idea.

Let's wait and see what happens!
Since doing this on 10th January, my SGS2 has only rebooted once (that I am aware of).

It seems to have settled down now.
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Old February 1st, 2012, 07:55 AM   #131 (permalink)
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Mine also freezes and rebootes, sometimes multiple times an hour. Since those problems started at the same time it started to randomly go into driving or Kies mode, I blame all of them on the faulty USB port.
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Old February 2nd, 2012, 01:02 PM   #132 (permalink)
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Hello,
Have had the S2 since christmas and it has rebooted randomly.
Often several times throughout the day. Tried to factory reset but did not help. While waiting for a fix, I enabled automatic powersaving. Something has happened since enabling it. It has been on for over a week now without any reboots. Could be worth trying if everything else fails.

Regards
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Old February 5th, 2012, 12:27 PM   #133 (permalink)
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Sad Re-booting

I have had the AT&T S2 since the day it came out in the US. I never had the rebooting problem until I inserted the SD card (ScanDisk 32GB), which was about 1 month after I got the phone. Now every time I turn off the phone it will go into a reboot mode when it starts to scan the SD card. It did this with 2.3.4 and does the same for 2.3.6. I think this is an issue with AT&T customized software on the S2 and the SD card. I can wipe the cache and it will come back most of the time. I can also remove the SD card and it will start fine. So... Seems like an issue for AT&T and Samsung on the AT&T software. Any answers AT&T? It is frustrating...
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Old February 5th, 2012, 06:35 PM   #134 (permalink)
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Mine has started doing this randomly as well, even when its just sitting on a table, I thought it was an app or something that was locking up and crashing the phone. Hopefully the next ROM update will fix it up so it doesn't happen too often.
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Old February 5th, 2012, 08:51 PM   #135 (permalink)
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Default Random reset & power downs

I have been having the same problem but also sometimes just powers down and doesn't restart. There are some other threads also discussing this.
I am using 2.3.4 and was OK for the first couple of months. Now resets or power downs have been happening three or four times a day.
I do have an SD card inserted but have since nearly new (4 mths ago).
I tried the paper inserted to keep the battery tight and so far two days without problems :-) BUT I haven't been out much in that time so it has been mainly sitting still.
This problem is obviously so prevalent that Samsung should be investigating.
Is there a log somewhere that says why a restart has occurred?

To summarise the current theories in these threads:
- loose battery (made worse by SD card) (I favour this theory at present)
- accidentally pressing power switch (unlikely)
- upgrading Anddroid version (not my case)
- various apps but in particular Skype (I have it but not usually running)
- faulty hardware ?
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Old February 8th, 2012, 03:17 PM   #136 (permalink)
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Newbie here.

I have had a S2 for several months and only noticed the reset issue after updating to 2.3.6. It may have been occurring before but gone un-noticed. I too have been through the SD card diagnosis before finding this forum. Thought that would fix it. Stripped out my apps. No change. Phone would reset multiple times a day but occassionally go for up to 2 days without a reset. Good case, no chance of bumping buttons.

BUT. While in Antarctica recently, where there is no cell phone coverage or wireless network I put the phone in flight mode to conserve battery. No resets for 12 days! Used it all the time, bumping around, taking videos in the cold, recharged a few times but never turned it off. Back home, unset flight mode, reset within an hour. Long way to go to diagnose that!

So, looks to me like the phone/network code is the likely root issue. I've had several resets during business calls. Perhaps should have stayed with my old phone and bought a tablet. Hopefully 2.3.7 will address the issue.
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Old February 9th, 2012, 05:42 AM   #137 (permalink)
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Reset after firmware updates is sometimes caused by clashing of the remnants of old firmware with the new. The recommended method is to do a factory reset and clear the cache. It leaves the phone on the latest firmware, but all settings and apps have to be redone and re-downloaded. So I suggest backing up whatever you can if you intend to do this.

I had some reboots a few times after updating but it seems to have cleared up which I take it to mean that somehow the old cache have been rewritten or something like that. I never cleared the cache or factory reset since I already have 100+ apps which is such a hassle to redo everything.

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Old February 9th, 2012, 03:28 PM   #138 (permalink)
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I have the same issue. It started being much more frequent (many times per day) after having updates the O.S. to the 2.3.6 version. Now after many tentatives, I disabled the WiFi, and the device is not rebooting since three days. It seems to me that the issue was more frequent when the battery was not fully charged: did anybody noticed this kind of behavior?

Do you know if it possible to go back to the 2.3.3 version, without loosing all the data?
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Old February 9th, 2012, 04:51 PM   #139 (permalink)
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I have the same issue. It started being much more frequent (many times per day) after having updates the O.S. to the 2.3.6 version. Now after many tentatives, I disabled the WiFi, and the device is not rebooting since three days. It seems to me that the issue was more frequent when the battery was not fully charged: did anybody noticed this kind of behavior?

Do you know if it possible to go back to the 2.3.3 version, without loosing all the data?

Same here... disabling wifi stops the rebooting, but i want wifi. on a full battery it happens less.
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Old February 10th, 2012, 10:02 AM   #140 (permalink)
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For those of you suggesting some sort of mechanical reason, i.e. loose battery or pushing the power button while in your pocket, that isn't it, so please stop suggesting it is. Because mine regularly reboots while just sitting on my kitchen counter top.

I find it a little irritating that Samsung seems to quiet on this obviously, wide-spread issue. And wouldn't be surprised if they just blow us SII users off since the SIII is coming out. I hope that's not the case because this is a great phone apart from this rebooting thing.
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Old February 11th, 2012, 02:07 AM   #141 (permalink)
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Got my S2 3 weeks ago and it reboots several times a week. The strange thing is that it is done at the same time (10.30pm and 5.30am).
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Old February 11th, 2012, 03:39 AM   #142 (permalink)
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mine because of skype..if u have this app, simply throw it out..it worked...
I'm not running Skype...

I was thinking...maybe if folks could list what apps they have loaded, and whether or not they are experiencing the reboot, that might help narrow down the culprit(s). I don't think it's one app causing the issue, I think it's a combination of apps.
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Old February 11th, 2012, 03:56 AM   #143 (permalink)
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For those of you suggesting some sort of mechanical reason, i.e. loose battery or pushing the power button while in your pocket, that isn't it, so please stop suggesting it is. Because mine regularly reboots while just sitting on my kitchen counter top.
You may be right, but it has been 6 days since I wedged a piece of paper in with the battery and not a single reboot since.

It also does sound like a possible software issue but pinning it down will be tricky.
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Old February 12th, 2012, 10:23 PM   #144 (permalink)
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Drat! Jinxed myself. No sooner had I sent the previous post than my SGS2 rebooted uninvited around midnight while sitting totally undisturbed on the dressing table! Battery was > 80% at the time. WAF dropped another few pionts when it woke her up.

This is getting annoying.
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Old February 13th, 2012, 02:18 AM   #145 (permalink)
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Hi guys, it's not just the S2 that's affected - I and lots of others have the same problem with the HTC Sensation XE. Also read that SE Experia series has the same problem. It sounds like an android problem to me (I'm on my second XE with the same problem).
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Old February 13th, 2012, 05:38 AM   #146 (permalink)
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Hi guys, it's not just the S2 that's affected - I and lots of others have the same problem with the HTC Sensation XE. Also read that SE Experia series has the same problem. It sounds like an android problem to me (I'm on my second XE with the same problem).
Thanks for that info. I wes starting to wonder if it was SGS2 specific. The question then is it Android or one or more apps?

Is there anyone with a barebones phone (minimum apps) that is also having this issue?

For me, the problem didn't surface for the first few months I had the phone, which suggest it might have started after some app I loaded. Pity I can't remember exactly which one

Surely if it was Android, every Android user would be screaming and Google wouldn't have a product to give away.
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Old February 13th, 2012, 05:12 PM   #147 (permalink)
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Default Probabaly solved it for me

Android 2.3.5, SD 32GB Transcend Class 4, wifi is on most of the time

I saw up to several reboots a day until I backed up all data from the SD card, formatted it (FAT32) and copied the data back. I saw only one single reboot a short time after switching it on with the card again and since then it is stable (more than a week now).

Might help somebody...
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Old February 14th, 2012, 05:03 AM   #148 (permalink)
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Hello All,

I was wondering if anyone can help with the constant restarting of the Samsung Galaxy s2. It is driving me insane. Here is what has happened so far.

My phone started rebooting itself after the 2.3.6 update about 6 times a day. I got pretty mad and called optus which put me onto samsung. They told me to hard reset the phone and gave me a code.

Problem came back an hour later so I called optus again and they said the phone must be sent away for repairs. I handed the phone in 2 weeks ago and got it back yesterday. The guy at the shop accuses me of a virus being on the phone which corrupted the software?? Anyway he said it was fixed...... But 3 hours later the same problem comes back while i was on the phone with a client and the phone rebooted in mid conversation.The phone has also rebooted while sitting on the kitchen bench and my office desk? was not even touching it.

I am so close to shoving this walk about droid up Samsung/optuses ........... as i have had enough. So if anyone here has anything that can help then please let me know.

Phone has been sent for repairs.
Phone has been reset
Memory card has been formatted
Internal memory has been formatted
No apps have been loaded
Version 2.3.6 baseband I9100XXKI4

Cheers
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Old February 14th, 2012, 07:45 AM   #149 (permalink)
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Hi,

I just noticed this thread and mines on 2.3.5 and its rebooting randomly.


This battery thing thing cant be the case though as it will do it when just sitting there. I have tried moving the battery about and it definitley sits snug enough to keep power to the S2.

I suspected apps as well but ive been removing more and more. It could be to do with the SD card but its odd that everyone else is having issues.


I wonder if there is a driver style related issue. Hopefully they will iron this out. However I have to say I am starting to miss my old Iphone as Android is just too unreliable. I have had it reboot in a phone call already and that is pretty poor, I think sometimes that they are doing too much and forget that really its supposed to be a phone.
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Old February 14th, 2012, 05:11 PM   #150 (permalink)
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Hi,

I just noticed this thread and mines on 2.3.5 and its rebooting randomly.


This battery thing thing cant be the case though as it will do it when just sitting there. I have tried moving the battery about and it definitley sits snug enough to keep power to the S2.

I suspected apps as well but ive been removing more and more. It could be to do with the SD card but its odd that everyone else is having issues.


I wonder if there is a driver style related issue. Hopefully they will iron this out. However I have to say I am starting to miss my old Iphone as Android is just too unreliable. I have had it reboot in a phone call already and that is pretty poor, I think sometimes that they are doing too much and forget that really its supposed to be a phone.
HI.It has nothing to do with apps as i have got my phone back from samsung warranty after they wiped the phone. all i did was make a call and it rebooted. So i am thinking its firmware or something wrong with the phones itself
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