[Q] Strange Restarts - Galaxy S II Q&A, Help & Troubleshooting

Hey,
My SGSII is on the KE7 stock and rooted by CF-Root 3.7. My device sometimes restarts completely on itself and sometimes android restarts only. This is so annoying and I've searched a lot in the forums but I couldn't find what is the problem exactly and how can I solve that.
Thanks in advance.

Check and clean the battery contacts, there is another thread about this problem. It seems to only effect a few devices.

frogfoot said:
Check and clean the battery contacts, there is another thread about this problem. It seems to only effect a few devices.
Click to expand...
Click to collapse
I think it's related to software problem, because sometimes android only restarts.
Can you give me link another thread about this?

Happened to me a couple of times too and sometimes while playing some games. I hope 2.3.4 would fix this

TAEL said:
I think it's related to software problem, because sometimes android only restarts.
Can you give me link another thread about this?
Click to expand...
Click to collapse
I have had this issue too

droidluck said:
Happened to me a couple of times too and sometimes while playing some games. I hope 2.3.4 would fix this
Click to expand...
Click to collapse
I had about 5-6 times complete restarts (seeing GT-I9100 boot splash) and about 7-8 times android restarts since yesterday.

Ive been getting the same issue. Ive found a thread and people have found it to be a wifi issue. Try WIFI Manager from the market, it seems to have sorted mine out for the moment. Its a strange one ill tell ya.
Nathan

NatTheCat said:
Ive been getting the same issue. Ive found a thread and people have found it to be a wifi issue. Try WIFI Manager from the market, it seems to have sorted mine out for the moment. Its a strange one ill tell ya.
Nathan
Click to expand...
Click to collapse
A WIFI issue?? Really? Can you link that thread?

Hmm ill have a quick search but im doubtful as i found it late half asleep. Here-
://androidforums.com/samsung-galaxy-ace/328680-auto-shut-down.
http com

bclark said:
A WIFI issue?? Really? Can you link that thread?
Click to expand...
Click to collapse
Even when I'm not using wifi (it is off), I had restart.
Anybody have this issue with KE8 ?

I have these restarts too, and i can reproduce them. If i put on some music with the build in player it reboots, sometimes at the 1st song sometimes at the 4th its a bit random.
I also have this reboot issue if i want to upload a picture of 4MB or more with twitter.

Tael take a look at this thread over hear:
http://samsunggalaxysforums.com/showthread.php/4954-Random-Restarts-on-New-SG2
It sucks big time considering that I'm merely 3 weeks away from mine! :-(
Hope someone could come up with a fix soon!
I wonder if all the handsets are affected...

How weird is this. As i posted my reply i had a callout to a job. As i was on the phone to the BT Tech Guy my phone went blank and would not wake up. After the call it would not boot. i had to reinsert the battery. This is not good imo.
Im now thinking of returning this phone as its more trouble than its worth

Here's another thread I just found:
http://forum.xda-developers.com/showthread.php?t=1062065
They seem to suggest that a downgrade fixed their problem.

What im going to do is install the stock firmware without data ect.
See how its goes then maybe if that dosent work send its away to phone heaven. Or install cm7 when its available .
Sent from my GT-I9100 using XDA Premium App

I flashed back to KE2 and problem is fixed.

SquirtingCherry said:
I flashed back to KE2 and problem is fixed.
Click to expand...
Click to collapse
You flashed only kernel or total firmware?
Sent from my GT-I9100 using XDA App

The whole firmware just like he mentioned in the other thread.
PS: Check out BMC sometime, will ya?

Until recently its been fine, but over the past 1 and a half weeks, I've had 1 full restart and numerous android restarts.

I found that getting a new sim card solved it for me.

Related

Intermittent shutdown?

Hello.
I am having a strange issue with my GS2.
Every other day (it's been like this since the beggining) my phone has been shutting down by itself. When this happens I have to power it on. It will then happen again after one or two times and be okay after.
I reflashed, same issue.
Anybody else has similar symptoms ?
edit:
Running Cog 1.42 with the provided kernel
KG6 modem, flashed by myself after I flashed KH3 and didnt like it.
Had similar symptoms before when I was on Leomar Revolution.
Teslarage said:
Hello.
I am having a strange issue with my GS2.
Every other day (it's been like this since the beggining) my phone has been shutting down by itself. When this happens I have to power it on. It will then happen again after one or two times and be okay after.
I reflashed, same issue.
Anybody else has similar symptoms ?
edit:
Running Cog 1.42 with the provided kernel
KG6 modem, flashed by myself after I flashed KH3 and didnt like it.
Had similar symptoms before when I was on Leomar Revolution.
Click to expand...
Click to collapse
hmmm...
have you ever seen such a shutdown? any error messages or fc's before?
or, maybe a stupid question: empty battery?
if you have this problem on every rom you tried (stock also?), perhaps it's a
hardware fault?
also you can try logcat to trace down the reason...
^ Thanks for the reply.
What command should I input to logcat ?
Teslarage said:
^ Thanks for the reply.
Click to expand...
Click to collapse
you can use the thanks button if you like
Teslarage said:
What command should I input to logcat ?
Click to expand...
Click to collapse
install alogcat from the market, or (if you have an adb connection set up) just use adb logcat from your pc shell.
see http://developer.android.com/guide/developing/tools/logcat.html for details.
the problem is, your shutdowns occur without warning, so maybe you would have to use "adb bugreport" to get informations from "before" the shutdown. bugreport issues tons of data though, so you would have to search a bit...
Some of my friends had the same issue. Phone kept shutting down. They put a piece of parper/card between the battery door and the battery. Phone hasnt shut down ever since
theonlymac001 said:
Some of my friends had the same issue. Phone kept shutting down. They put a piece of parper/card between the battery door and the battery. Phone hasnt shut down ever since
Click to expand...
Click to collapse
So you suggest that there's enough space between the case and the back of the battery for it to move?
I doubt it. Everything in this device is tucked in really tight! No.room for moving parts or w/e.
Sent from my GT-I9100 using XDA App

ROM to Fix Random Reboots

Where any of you experiencing random reboots until you flashed a particular ROM? If so, which one solved the problem for you? I'm getting at least one random reboot per hour and it is even happening when I am talking on the phone. This is NOT acceptable!
I'm on my 2nd MoPho and I don't have confidence that another replacement will solve the issue.
Sometimes its an app that causes the reboots...i would freeze apps one by one until you find the culprit. Try it out!
Sent from my MB855 using xda premium
That seems like it would take forever to test since the reboots are random. What is the best procedure to follow?
Hello
I live in Italy and I have my Mopho with sim "3 ITA" (UMTS) and I've never had a reboot, I think is a problem only with CMDA networks
sjamie said:
That seems like it would take forever to test since the reboots are random. What is the best procedure to follow?
Click to expand...
Click to collapse
You might want to start first with the apps that are running, it's really all I can think of, but having so many reboots is ridiculous...if anything i would switch it out for a new Photon...then if it happens again, you might be more assured that its an app thing.
KTT16 said:
You might want to start first with the apps that are running, it's really all I can think of, but having so many reboots is ridiculous...if anything i would switch it out for a new Photon...then if it happens again, you might be more assured that its an app thing.
Click to expand...
Click to collapse
That's just it. I don't really have any apps running. I haven't used the phone since last night and have received numerous reboots since then.
I think I'm going to attempt another factory reset and flash the latest SBF. I'll wait a while and if the reboots continue to occur, then I'll try joker's Skinny ROM. If the reboots still occur, I'll try a 3rd replacement phone.
Best of luck! I hope out all works out...this phone is a monster!
Sent from my MB855 using xda premium
random reboots/ROM
sjamie said:
Where any of you experiencing random reboots until you flashed a particular ROM? If so, which one solved the problem for you? I'm getting at least one random reboot per hour and it is even happening when I am talking on the phone. This is NOT acceptable!
I'm on my 2nd MoPho and I don't have confidence that another replacement will solve the issue.
Click to expand...
Click to collapse
Did you do the MSL # reset? Sprint can guide you through it if you can't do it yourself.
##72786# [followed by your MSL code] clears all voice and data programming, then forces a handsfree activation
I have had no heat issues or reboots in about 30 days.
You can research this issue, but it will work.
roseng said:
Did you do the MSL # reset? Sprint can guide you through it if you can't do it yourself.
##72786# [followed by your MSL code] clears all voice and data programming, then forces a handsfree activation
I have had no heat issues or reboots in about 30 days.
You can research this issue, but it will work.
Click to expand...
Click to collapse
WOW! I've never heard of this solution. Where you getting many random reboots before performing this procedure? Should I do a factory reset too? I can't wait to give this a try.
Also, is it possible that I just have a battery with bad internals? I replaced my launch day phone due to the same exact issues I'm experiencing with this refurbed replacement.
did somebody tried already?
is this fix working?did it fixed random reboots??? my wife already had 2 motorola photon but it is still having these random reboots...
redninja007 said:
is this fix working?did it fixed random reboots??? my wife already had 2 motorola photon but it is still having these random reboots...
Click to expand...
Click to collapse
For me, the app "Enhanced Email" was the source of my random reboots. Once the dev updated it to work with Motorola phones, the issue disappeared... thankfully!
cool
sjamie said:
For me, the app "Enhanced Email" was the source of my random reboots. Once the dev updated it to work with Motorola phones, the issue disappeared... thankfully!
Click to expand...
Click to collapse
but how did you know that was it?did u freeze every single app? coz i formatted my wife's phone to stock with no apps or whatsoever..but still it does it....
redninja007 said:
but how did you know that was it?did u freeze every single app? coz i formatted my wife's phone to stock with no apps or whatsoever..but still it does it....
Click to expand...
Click to collapse
For me, my phone worked perfectly when I had zero installed apps on it. Therefore, I knew it was something I was doing/installing that was causing the problem. I started with the apps I used the most and installed them one at a time leaving a day between each install to see the effects. Everything was working well until I installed EE then within a few hours, my phone did a RR. Therefore, I knew something was up with EE. After doing some research, I found out that other Motorola phones where having the same problem with EE. I contacted the dev and he fixed it pretty quickly. Now, EE is the best email app for sure!
cool.. thats good for you... i hope i could find out what keeps my wife's phone to restart... right now she bought a new lg remarq.. no apps no prob hahaha thats what she said ... but still mopho is a good phone so im still looking forward to unlocking it on boost mobile tnx for sharing

Galaxy S III Not responding

Hi everyone,
i don't know if someone already encountered this but sometimes my GS3 does not respond when i try to wake him up. (it's not turned off just standby). The screen stays black en nothing works. One time the screen did woke up but i couldn't unlock it because the touchscreen didnt work. It could not be turned off and the buttons didn't do anything! The only way for me to get out of this was a battery pull!
I did not root or modify anything on this phone because i like the stock samsung TW for the first time .
Did anyone else have this problem? And how did u solve this? Thank u.
Possibly due to an app you have installed.
Sent from my GT-I9300 using xda premium
dnlgee said:
Possibly due to an app you have installed.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Thank u i didn't thought of that. Is their an easy way to find out wich app this could cause? I still find it very weird. If an app is not compatible than it just shouldnt install intead of breakin the phone right? XD
This happened me last night as well. Couldn't do anything other than turn the phone off, and when it came back on it was fine again.
Unrooted as well. Would like to find out how I can prevent this from happening again?
if you are not sure about the root cause of the problem better factory reset your mobile
bala_gamer said:
if you are not sure about the root cause of the problem better factory reset your mobile
Click to expand...
Click to collapse
Yes, if it happens again than i will try that. But i already sent the unit back from were i ordered it. They will send me a new one because its their policy to send a new one if something happens in 2 weeks.
So i will see if it still occurs with the new one otherwise its one of my apps. Than i will install only a few apps and see what causes it. If it doesnt occur one more thime than the unit was faulty. Ill keep u guys updated.
chicoelnino said:
This happened me last night as well. Couldn't do anything other than turn the phone off, and when it came back on it was fine again.
Unrooted as well. Would like to find out how I can prevent this from happening again?
Click to expand...
Click to collapse
Did it happen once? My phone had it like 3 times so thats why i sent it back. But if it still occurs with my new phone than it must be one of the apps i got Luckily they got DOA policy. I asked if it includes ''the phone does not work as it should" and they said yes send it back u will get a new one yaay but now i have no phone
I had this. After a hard reset, multiple times, and configuring with no accounts (no samsaung account, no google, nothing), it still happened. I ended up returning the phone and I've not had a single problem since.
I think it was either faulty memory or a dodgy firmware flash (more likely). Either way, I didn't care to find out and now it's all good.
sama said:
I had this. After a hard reset, multiple times, and configuring with no accounts (no samsaung account, no google, nothing), it still happened. I ended up returning the phone and I've not had a single problem since.
I think it was either faulty memory or a dodgy firmware flash (more likely). Either way, I didn't care to find out and now it's all good.
Click to expand...
Click to collapse
Yes lucky i found this out early too.. Because after another week i wouldnt get a new one and now i get
Factory reset your phone.
Hope everything turns out alright.

Phone losing Network connection randomly during call

Well I had this phone for a month now, and it was fine all along until a couple days back, what happens is during a call randomly (once a day or so) the phone loses the network and the call gets disconnected, then it comes back after a few seconds. The 1st time this happened, it didn't come back and even switching to airplane mode didn't work, I had to reboot. Now I bought this phone used and I don't recall making any changes. I was on LPX modem initially then changed to kh3 so reverted back to lpx but the problem still persists. Even tried cleaning the sim card and contacts. Is this a hardware issue or a software issue or most likely a network issue? Considering it worked fine for almost a month.
Does this happen to some of y'all?
Location: Goa
< Thanks button to the left.
postfatal said:
Location: Goa
< Thanks button to the left.
Click to expand...
Click to collapse
Hmmm, what you trying to say here? The network is at fault? This didn't happen on my earlier i9003. And this does happen once almost on a daily basis.
Had similar problem few times... disappeared after random rom changes. Also could be something with usb port (this broken bastard even changed my phone state to driving mode while conversating, in result my phone turned speaker on and was screaming to my ear in public places...) If it connects to network properly everytime after reboot I would say its hardware or software problem - that means, something that you could handle directly or indirectly.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
socah said:
Had similar problem few times... disappeared after random rom changes. Also could be something with usb port (this broken bastard even changed my phone state to driving mode while conversating, in result my phone turned speaker on and was screaming to my ear in public places...) If it connects to network properly everytime after reboot I would say its hardware or software problem - that means, something that you could handle directly or indirectly.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
Click to expand...
Click to collapse
Well now it just drops the network altogether only when there is an active call. It doesn't/hasn't happened to me while using data or anything like that, just that it drops the call along with mobile network and reconnects after like 5 seconds. Quite annoying this. What you have mentioned is some contact in your usb port (dirt etc) causing the phone to jump to driving mode. Were you having similar network issues?
Poland.
Sent from my Sgs2 via Xda Premium. Helped? Click thanks button!
Any other users having this similar issue?
Well this happened again today, lost network & came back in around 8-10 secs, very annoying and only when a phone call is being made or during. Funnily it only happens once a day.
mzone1510 said:
Well this happened again today, lost network & came back in around 8-10 secs, very annoying and only when a phone call is being made or during. Funnily it only happens once a day.
Click to expand...
Click to collapse
Same problem here was on modem LPS changed to LQ6 but nothing changed.... does anybody know the reason of this problem?
Hawkeye1103 said:
Same problem here was on modem LPS changed to LQ6 but nothing changed.... does anybody know the reason of this problem?
Click to expand...
Click to collapse
Well happened again, this time not during a call but when it was using mobile data (3G), a vodafone guy called me & told me to change my sim to see if it solves the problem, for now I set my phone to GSM mode only and not WCDMA, will observe & see it it makes a difference.
mzone1510 said:
Well happened again, this time not during a call but when it was using mobile data (3G), a vodafone guy called me & told me to change my sim to see if it solves the problem, for now I set my phone to GSM mode only and not WCDMA, will observe & see it it makes a difference.
Click to expand...
Click to collapse
Could it be an issue from Siyah ... i also have siyah but my version is 3.3.3d
Hawkeye1103 said:
Could it be an issue from Siyah ... i also have siyah but my version is 3.3.3d
Click to expand...
Click to collapse
Well I doubt it could be siyah, I was using it for a month and it was fine all that while. This started happening a week back.
Hawkeye1103 said:
Could it be an issue from Siyah ... i also have siyah but my version is 3.3.3d
Click to expand...
Click to collapse
Were you having this problem on GB too?
never had it on GB and on ICS just had it recently... nothing fancy... fully wiped my phone and rewritten LPW hope it will be better now
Hawkeye1103 said:
never had it on GB and on ICS just had it recently... nothing fancy... fully wiped my phone and rewritten LPW hope it will be better now
Click to expand...
Click to collapse
Funny how it came up all of a sudden, I pray it's not a hardware fault though, let me know how the reflash works for you. Meanwhile I'll try CM9 but I read in the thread that many people are having this issue on it, so it just might make it worse!
mzone1510 said:
Funny how it came up all of a sudden, I pray it's not a hardware fault though, let me know how the reflash works for you. Meanwhile I'll try CM9 but I read in the thread that many people are having this issue on it, so it just might make it worse!
Click to expand...
Click to collapse
Don't think it's hardware related... sunt started after flashing 4.0.4 .... did a full wipe and reinstalled lpw => speed mod => slim ics => siyah 3.3.3d hope everything is good. flashed this morning. will wait a few days
I've had the exact same problem, and can't ever recall it happenning on gingerbread, Only noticed it on CM9. Looks like an ICS sandwich bug, it talks to the hardware differently so this would explain why gingerbread doesn't seem to have this problem, If you still have these issues maybe try a gingerbread modem, and see how that goes. They are backwards compatiable with ICS.
Well I went a day without this happening to me on CM9, I'll try it out for another day or so to check.
mzone1510 said:
Well I went a day without this happening to me on CM9, I'll try it out for another day or so to check.
Click to expand...
Click to collapse
Didn't have the problem... so it's software related... just need a good old wipe and rewrite of the soft good as new
Hawkeye1103 said:
Didn't have the problem... so it's software related... just need a good old wipe and rewrite of the soft good as new
Click to expand...
Click to collapse
Has your problem also disappeared?

Do more people have random reboots?

Random reboots
Sometimes it reboots randomly.
Do more people have this problem?
I did a Factory reset by the way
None until now. About a month in with the device.
Same here. Reboots and random app crashes.
Skickat från min SM-G925F via Tapatalk
ernell said:
Same here. Reboots and random app crashes.
Skickat från min SM-G925F via Tapatalk
Click to expand...
Click to collapse
Hi,
After installing new update "G925IDVU1BOE3" from Samsung, am not getting any issues and battery backup is also good compared to earlier times when I was on OD2.
Hope this helps.
Regards,
Richa
no reboots on stock Verizon or after moving to CleanROM 1.1
fletch33 said:
no reboots on stock Verizon or after moving to CleanROM 1.1
Click to expand...
Click to collapse
Before that you had reboots too?
john291 said:
Before that you had reboots too?
Click to expand...
Click to collapse
no i was on stock when i bought it and moved to a custom rom a few weeks ago and on my Verizon Edge i can not recall ever having a reboot on either of them. not saying it never happened but i dont recall it happening.
i also read about people having rotation issues and have not had that issue either so maybe i am lucky.
if Cell Standby would use less battery and reception improve a little it would almost be perfect.
I am on the 3 UK branded firmware and I get occasional reboots and also occasional freezes.
It is very annoying.
I am going to flash the unbranded UK firmware for my edge and see if it makes a difference.
Please Let me know how it goes. .those sudden reboots drive me crazy
Ps i cant remember that i had those reboots before the update.
john291 said:
Ps i cant remember that i had those reboots before the update.
Click to expand...
Click to collapse
You haven't even mentioned which firmware you are on, or which you were on previously. Are you using a G925F/T/I/W8/D/P/D4/0? With only saying "I have random reboots" you say as much as "I have a problem". And that isn't much, at least not enough to provide any constructive help..
Did you root? Did you change anything? Any information please Otherwise it will be hard/impossible to really help with it
fletch33 said:
no reboots on stock Verizon or after moving to CleanROM 1.1
Click to expand...
Click to collapse
mythos234 said:
You haven't even mentioned which firmware you are on, or which you were on previously. Are you using a G925F/T/I/W8/D/P/D4/0? With only saying "I have random reboots" you say as much as "I have a problem". And that isn't much, at least not enough to provide any constructive help..
Did you root? Did you change anything? Any information please Otherwise it will be hard/impossible to really help with it
Click to expand...
Click to collapse
Hello there
i have model number G25F
I am now on firmware: LRX22G.G925FXXU1AOE3 this was the update from the orginal firmware before(i dont know the number)
I am not rooted and i changed nothing.
I tried a hard reset but the random reboots and sometimes tochwizz crashes are back..
But some times the Phone is working for more then 6 hours without a problem its very strange..
Best regards
I have the same problem but samsung service centre fixed it by changing the main board and battery.
dog-man said:
I am on the 3 UK branded firmware and I get occasional reboots and also occasional freezes.
It is very annoying.
I am going to flash the unbranded UK firmware for my edge and see if it makes a difference.
Click to expand...
Click to collapse
There is no any unbranded uk.. Only international
There is or at least was. I flashed it onto my edge and it was fine, but I have gone back to 3 UK firmware to take advantage of their new 'volte' (I think it's called) service.
dog-man said:
There is or at least was. I flashed it onto my edge and it was fine, but I have gone back to 3 UK firmware to take advantage of their new 'volte' (I think it's called) service.
Click to expand...
Click to collapse
What that "volte" does?
It uses a different frequency to make signals go further.
Supposed to help fill in the areas where the signal is poor or no signal.
dog-man said:
It uses a different frequency to make signals go further.
Supposed to help fill in the areas where the signal is poor or no signal.
Click to expand...
Click to collapse
Hah that is SUCH FAKE .. stay away from that CRAP ! it is just scam and spam !

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