My XPS shutdowns randomly after flashing to ICS. I had also rooted my phone with Locked bootloader But due to the problem faced by me i re-flashed with the stock ICS firmware but my phone still shutdowns randomly....
While shutting down It displays Android System and a dialog box which says shutting down please help......
To be precise:
My phone vibrates and turns off. In this days i realized that before vibrates it shows "Android System" and "Shutting down" dialog . that is not cause of battery low. it happened with 70%, 100% battery as well.
that is a 'problem' i've had since i got my xperia arc 2, 3 or 4 times a month it crashes and reboots. i never found out what the problem is/was. i was always rooted.
rian18 said:
that is a 'problem' i've had since i got my xperia arc 2, 3 or 4 times a month it crashes and reboots. i never found out what the problem is/was. i was always rooted.
Click to expand...
Click to collapse
Mine 4 to 5 times a day..... and is shuthowns.
Hi Rian18,
Kindly do a repair of the firmware u can get it in the pc companion when u connect ur phone to the pc u have an option for repairing.
Maybe this will help. Let us know
My GB firmware used to crash every 2 days or so, forcing a reboot as if battery was removed. It also existed on custom roms. Now after 1 month of ICS usage, I never ever crashed, never had a FC in any app except one time with Facebook app, which is crap
guys i tried repairing the firmware and after repairing 7 days later the problem has started once again ....
So i decided to flash back to GB but after flashing i noticed that even while charging the phone android battery status says Discharging.....
Please help ......
mihir160489 said:
guys i tried repairing the firmware and after repairing 7 days later the problem has started once again ....
So i decided to flash back to GB but after flashing i noticed that even while charging the phone android battery status says Discharging.....
Please help ......
Click to expand...
Click to collapse
Do a factory reset and don't estore your data.
Sent from my LT26i using Tapatalk 2
shutdown
are you not accidentally pressing the power button
NO dude not at all not is the battery drained out.. I just found out a few people faced the same problem with Nexus But there is no solution on that website..
Since i am not able to take the screenshot of the problem i am attaching one from the Nexus forum..
how come no one has a solution for this...
Related
Have you guys ever experienced your x10 randomly restarting itself? Sometimes when I'm talking on the phone or just have my phone lying on my bed, it just restarts itself. I doesn't bother me too much since it isn't that frequent, but it pisses me off when it does restarts while I am on the phone...
Does anyone know why it does this and how it can be prevented?
Hi shukla,
I've got exactly the same problem! Which firmware is on your phone? I've got the 026 on my X10i. I think it's the firmware or the new root method?!
If I'll find some time this week I would like to try some things out...Some other experienced that problems, too?
Regards,
Martin
I've had random reboots as well running 26 firmware (using the 3 step root method) thankfully never during a call last time was while in Toronto this past Saturday taking pictures with Vignette.
I'm on 024 (rooted).
I think I was wrong with my thoughts. Today I've read a lot about our problem with rebooting. Seems it is the Sony backup application. It is randomly accessing the SIM card and thats the reason why our phones crashes. Right now I am going to flash my phone again. I'll tell you some more details after flashing is done.
Ok, well it's not easy to fix that problem. Yesterday I flashed my X10 about 6 times. With original SEUS firmware and the problem still appears. Then I flashed with 026 debranded firmware. After that I rooted my phone with the doshaska.net method. After that I removed the restore/backup app from /system/app. The problem still appears till now - but not so often. In fact, I had reboots every minute, so my phone didn't came up. I really don't have a clue why it happen. Someone else got an idea?
Regards ,
Martin
The only way I could stop mine from rebooting was to remove SetCPU. Are you using it? If so, feeze it or remove it and see how it goes. I do have another problem now with the damn screen not sleeping unless i push the power button! Oh well, the joy of fiddling
Nothing out of the usual battery dain yet. I am running the branded Dutch t- mobile firmware. I'm going to root it soon.
Sent from my X10i using XDA App
need help please
glad i found this thread
i got the same problem since yesterday, my phone just restarts or turns off during call or anytime even if the screen is off and its just lying on my bed..
and doesnt starts on pressing start button, though i do feel vibration...the only way to start is to remove battery for few seconds and then put it again
infact i am using my phone without back cover as everytime i have to remove battery
tried 24 firmware and 26 with rooting method...same problem now trying to update from SEUS...lets c how it goes,,,fingers crossed
anybody else had this problem..? if cleared please advise me wot 2 do
i was using setcpu, juice defender and was rooted by .app method, what i think this problem started after uploading Dark Luster theme
but everything gets formatted when u reflash isn't it..?
please help
thanks
gitin said:
glad i found this thread
i got the same problem since yesterday, my phone just restarts or turns off during call or anytime even if the screen is off and its just lying on my bed..
and doesnt starts on pressing start button, though i do feel vibration...the only way to start is to remove battery for few seconds and then put it again
infact i am using my phone without back cover as everytime i have to remove battery
tried 24 firmware and 26 with rooting method...same problem now trying to update from SEUS...lets c how it goes,,,fingers crossed
anybody else had this problem..? if cleared please advise me wot 2 do
i was using setcpu, juice defender and was rooted by .app method, what i think this problem started after uploading Dark Luster theme
but everything gets formatted when u reflash isn't it..?
please help
thanks
Click to expand...
Click to collapse
alright i found the solution myself...this post is just to help others
flashing did not solve my problem at all, through SEUS or rooting method nope the problem didn't go
finally i removed my memory card and everything was fine
some things on memory card could cause reboot during calls or randomly, next time try formatting your memory card
hope it help someone
cheers!
luv my x10 though i ve also got iphone but i ve never looked back
Just curious, how hot is everyone's phone when it reboots? I've noticed my x10 doing the same when its running a little warm. It usually starts acting up when it's over 105 degrees Fahrenheit.
Sent from my HTC Desire using Tapatalk
Gitin thx..it looks much better now, however yeasterday I was carrying my x10(still with no memory card in it) in the pocket, it got pretty hot (most probably over 38 degrees) and it turned into this rebooting "mode"..finally I left battery for 20 minutes in cold place..x10 got back to normal..I think that random reboots are the matter of memory card issue (You have solved this problem) or/and overheating of battery - still couldnt find any clue how to ease this pain but read somewhere that Froyo for x10 will have this problem taken care of..
i think ( depends on my experiences) the telephone need to reboot coz one applications from SD card want to launch (send or receive) some commands from or to internal (built in memory).
that's means this applications needs to move temporary to internal memory just to execute this command so absolutely android system will restart to create virtual memory to this application to let it runs correctly
first it's better to remove backup/restore programs or make its runs manually, if you have another software need to save data to SD memory ,remove it.
it's better to launch applications directly from internal memory to win the time and performance but At the expense of the memory size
ps: all that explanations depend on the framework version.
sorry for complex explain but i don't have easy way to explain this problems
i suddenly have it now to, first every hour, now every 5 minutes, my phone won't start up anymore
sorry..bad news..its pretty cold here in Poland so battery shouldnt turn to hot that easily but apparently the problem is more serious..I have to admit that random reboots occur less frequently than before but that **** still hapens to my x10..after no more than 2 days I had gotten memory card removed it got back to malfunctioning again..
it really pisses me off that I cant enjoy this phone anymore..
android 2.1 or higher is my only hope..
if anybody solved that issue entirely..please, dont be shy, do not hesitate..help us, please!
zbyslove said:
sorry..bad news..its pretty cold here in Poland so battery shouldnt turn to hot that easily but apparently the problem is more serious..I have to admit that random reboots occur less frequently than before but that **** still hapens to my x10..after no more than 2 days I had gotten memory card removed it got back to malfunctioning again..
it really pisses me off that I cant enjoy this phone anymore..
android 2.1 or higher is my only hope..
if anybody solved that issue entirely..please, dont be shy, do not hesitate..help us, please!
Click to expand...
Click to collapse
i too am hanging on for the 2.1 update to hope it solves the problem. I've a feeling there's going to be a lot of x10s going into SE for a service though when it is released and doesn't solve the problem!
I'm not 100% but is this problem the entire phone powering down, or just the connection to your network, mine just loses its network connection and then connects again, over and over ........
there's nothing 2.1 update will do
as our phone was working fine when v bought it, its completely a hardware fault
ok do this...
1.take out sim
2.format ur memory card
3.repair through SEUS or root process watever..
4.turn on ur x10 without sim and leaving formatted card inside
it will still give u hard time u can try putting some video on ur memory card and try to play it few times, ur x10 will turn off and wont turn on until u take out battery for few seconds or take ur x10 in front of Air-Conditioner
as someone suggested in rooting thread to keep ur x10 in front of air-conditioner if u get errors while rooting or if rooting process stucks in middle
the same thing applies in our case...try using ur phone in front of A-Con it wont turn off
i tried with a new battery ...still the same
as i ve been repairing mobile phone from last 5 years, i opened my x10, took out the motherboard, took out all plates over IC's, cpu and cleaned it with acetone properly and heated cpu and whole board with Hot Air Gun...everybody who repairs mobile phones knows what i am talking about
still its the same....
still i am not saying i know everything, anybody knows what the problem is and suggest the overcome is most welcome
nxt few months gonna b really cold at my place...i definitely think i'll notice a difference as its really hot these days which is causing my x10 to die
I did experience this when I debranded my AT&T X10. I have since gone back to the AT&T ROM and have not had this issue since. My battery life has also improved. I did root and remove all the AT&T bloatware. I also edited settings.db to allow for installing non-market apps. This phone is very fast and smooth now with almost no glitches at all.
mine won't even work anymore..once per every 20 or 30 times and than it turns off itself very quick..I can't recharge battery, nothing..really hope that 2.1 will help somehow..I am thinking of getting back to very first soft that x10 was launched with..seriously I am sickin tired with that ****..
naplesbill said:
I did experience this when I debranded my AT&T X10. I have since gone back to the AT&T ROM and have not had this issue since. My battery life has also improved. I did root and remove all the AT&T bloatware. I also edited settings.db to allow for installing non-market apps. This phone is very fast and smooth now with almost no glitches at all.
Click to expand...
Click to collapse
Hi, I have an AT&T X10 and wonder what you debranded your phone to? I debranded mine about a week after I got it to R2BA026 Latin America and never had any issue with rebooting.
Aside from needing to power off the phone to check for software updates (two weeks ago of course ) my phone has been up for +358 hours without an issue, and that's with installing the AmbientTime home screen several days ago.
My xperia is rebooting itself several times in the day. I updated to gingerbread to see if the 2.3 fixes this problem but it still there.
Could it be the battery?
Any help would be great
Maybe you can tell us more about your issue. when did it begin ? Does your phone reboot after a specific event ? How did you proceed to the 2.3 update ?
Are you on stock or custom ROM?
Try wipe dalvik and fix permission.
When you update to 2.3.3, did you restore any data from previous ROM?
Sent from my X10i using XDA App
Phone Restarting
I have Xperia X10a. Somedays before my phone were restarting itself many time. After Some days my phone is not starting... Please Tell Me Solution to Hard Reset and Flash.. ...I will be thankful to you
al4877 said:
My xperia is rebooting itself several times in the day. I updated to gingerbread to see if the 2.3 fixes this problem but it still there.
Could it be the battery?
Any help would be great
Click to expand...
Click to collapse
Hi,
Not sure if this is the same problem but my x10i got quite hot recently and after kept randomly shutting down (mainly when under load but sometimes just sat overnight) I read on a Sony Ericsson thread that quite a lot of people have had the issue and in my situation could be a motherboard problem. (Heres the thread link) ... be warned though it's a long thread!
Took mine back to o2 for warranty repair as by this time it had become unusable ... just opening the browser shut the phone down!. 4 days later I got a refurbished sgs2 as a replacement (which was nice!) and a letter saying they couldn't repair the phone in the alloted time.
Hi,
I bought a mini pro sk17i a week back. I updated the phone via pc companion to 2.3.4 (4.0.2.A.0.58). The phone was working fine, but after 2 days it started to reboot itself after a call. after 5 continuous reboot i reset the phone (erased all data), then it worked fine for 2 days. Today while i was shopping i made a call, then it started to reboot. One of the things i noticed was from that point any number i dialed was not showing in the call logs. i couldnt reset the data as i was busy shopping and kept the phone in ma pocket. Later i find the phone is switched off mode. I tried pressing power button but nothing happens. Took the battery out and re inserted the battery. did a reset and it started to work fine. When i took the battery out it was a lil hot (warm) and the phone was also warm (battery area).
Here are my questions;
1.Why did this happen.
2. The phone was a lil hot when i removed the battery, can any part inside the phone be damaged if it goes hot.
3. Is this because of hardware problem/Software problem.
(I did a full reflash using flashtool and the latest firmware, till now its working fine.. dunno if this will happen again)
seems like firmware problem to me.
take the phone to service center if haplens again.
but I guess its fixed now, tho I dont know the reason, might be something happened by updating
It happened again. I flashed back to 4.0.2.A.0.42. What could be the problem.
coolbuy said:
It happened again. I flashed back to 4.0.2.A.0.42. What could be the problem.
Click to expand...
Click to collapse
This might be due to any software you installing after flashing...
Try to remember what you do after flashing and uninstall that software
Else get global copy of .58 update and flash that .ftf packageby using flashtool...
coolbuy said:
Hi,
I bought a mini pro sk17i a week back. I updated the phone via pc companion to 2.3.4 (4.0.2.A.0.58). The phone was working fine, but after 2 days it started to reboot itself after a call. after 5 continuous reboot i reset the phone (erased all data), then it worked fine for 2 days. Today while i was shopping i made a call, then it started to reboot. One of the things i noticed was from that point any number i dialed was not showing in the call logs. i couldnt reset the data as i was busy shopping and kept the phone in ma pocket. Later i find the phone is switched off mode. I tried pressing power button but nothing happens. Took the battery out and re inserted the battery. did a reset and it started to work fine. When i took the battery out it was a lil hot (warm) and the phone was also warm (battery area).
Here are my questions;
1.Why did this happen.
2. The phone was a lil hot when i removed the battery, can any part inside the phone be damaged if it goes hot.
3. Is this because of hardware problem/Software problem.
(I did a full reflash using flashtool and the latest firmware, till now its working fine.. dunno if this will happen again)
Click to expand...
Click to collapse
how do u solved it? i have the same problem. oh man. this problem make me sick
bobo180590 said:
how do u solved it? i have the same problem. oh man. this problem make me sick
Click to expand...
Click to collapse
i allready experience boot loops last week ago..
many method i try to fix it.. the best way is im using wotanserver to reflash the original firmware..
i also try using seus and flashtools but totally doesn't work..
so the best way is try use wotanserver..
Have you had this issue since flashing back to .42?
We will roll out a new software starting next week (.6x) mainly meant to improve the memory management to avoid reboots. Might be exactly what you need.
The roll out will start 12W02 but all phones won't get it at the same time so I cannot say for sure when your phone will get it.
Please post again and let me know when you got this so I know if it helped or not.
-Markus
Sony Ericsson Answers Team
I have exactly the same problem
Markus-SEAnswers said:
Have you had this issue since flashing back to .42?
We will roll out a new software starting next week (.6x) mainly meant to improve the memory management to avoid reboots. Might be exactly what you need.
The roll out will start 12W02 but all phones won't get it at the same time so I cannot say for sure when your phone will get it.
Please post again and let me know when you got this so I know if it helped or not.
-Markus
Sony Ericsson Answers Team
Click to expand...
Click to collapse
Hi Markus, Thanks for the response. As soon as i bought the phone i updated the firmware using pc companion. The flashing part went fine and the phone was working fine for 3 days, then it started reboots and turnoffs. I reinstalled the firmware and the same happened again. Then i observed this repeatedly happens when i finish call or lock the phone once it happens. i Also noticed the last called persons info is not stored in call log. But if u plug it for charging then the phone is fine. I rolled back to the previous .42 version. It was working fine for 4 days, yesterday after an hour of music playback (battery was around 44% or below) this happened again. i turned off the phone once it started restarting itself . then turned it on and cleaned the call logs. From that point its working fine without any shutdowns/restarts. Please help, i'm pretty sure that this is not a hardware issue. if the phone can run fine for 3 days without any probs..
andymac2k8 said:
I have exactly the same problem
Click to expand...
Click to collapse
me too when i use GPS or Wlan (.42 and .58 Firmware).
Thanks for the info.
I suggest you wait for the new update (.6x) which should hopefully be available for your phone very soon. If this won't fix the problem you have or if you don't feel like waiting for it (I cannot give an exact date when you will get it) you should contact a service center and have them examine the phone and do whatever necessary to get it working properly.
Repair routines varies a lot depending on market and local laws so you should give the local support a call and ask for some info about this if you choose to go with the service option.
http://www.sonyericsson.com/cws/corporate/common/contact/phonelist
-Markus
Oops, double post.
I have bought xps about 20 days ago. Yesterday and today , while I was surfing the net via wifi (both times) , my phone suddenly switched off and made a restart. Did anyone experience a problem like this ?? It never happened before.
Not had that problem - infact I was just thinking today that I haven't restarted my phone for a week.. and it still feels super smooth... which I've never experienced before on Android!
Never had a sudden restart, lag or unresponsive device. Seems that you are the only one here with such a luck...
Is this a reason for returning my phone to Sony? Is sony obliged to replace my device with another one?
georgebest said:
Is this a reason for returning my phone to Sony? Is sony obliged to replace my device with another one?
Click to expand...
Click to collapse
Unfortunately sudden restarts are very common in the android world. I think 80% of the android smartphones had at least once this problem. You should wait to see if it happen again and if so try a hard reset or a software repair using sony pc companion. If it will become a common problem even with other users sony with a future update it will fix the problem. What software version do you have .62 .67 or .73 ?
Hi,
If you have this reboot issue
Nothing can resolve this!
But,just in case
Do not use your phone with charger pluged in for long time!
This kill your battery very quick!
And cause autoreboot
And be careful with internet!
If you flash some FW or rom or kernel
Made a full charge before flash
Ciao
I've had this happen to me on my Xperia S twice already while using it.
It also randomly restarts while in standby once in awhile.
Not sure what's causing this. Any suggestions?
ssj_jaypee said:
I've had this happen to me on my Xperia S twice already while using it.
It also randomly restarts while in standby once in awhile.
Not sure what's causing this. Any suggestions?
Click to expand...
Click to collapse
If it's not happening very offen like twice a day, the only thing you can do is wait for the 4.0 update, because If you look in all the other android smartphone forums you will see that every android model have this issue from time to time. I think is something like the Windows OS bluescreen...very very difficult for normal users to detect where is the problem. I think with the 4.0 update the problem it will be solved. But if the Xperia S become unstable and randomly rebooting every day try a software repair with pc companion and if this is not solving the problem just go to a Sony support center and give them the smartphone for replacement.
I have the reboot twice
Refresh ROM good!
Hi, my phone also has random restarts. It becomes sluggish and unresponsive, then just restarts.
I think mine has done it once or twice when just in standby mode as well.
I actually got my first Xperia S replaced as it had this problem, but the replacement is also suffering from it.
Seen a few other people saying they have the same over on the Sony forums, so I think its a software problem somewhere.
sssache said:
Unfortunately sudden restarts are very common in the android world. I think 80% of the android smartphones had at least once this problem. You should wait to see if it happen again and if so try a hard reset or a software repair using sony pc companion. If it will become a common problem even with other users sony with a future update it will fix the problem. What software version do you have .62 .67 or .73 ?
Click to expand...
Click to collapse
I have .73. I didn't flash my device nor I use it when charges(and I don't let it charging for hours).
I think that there was not enough RAM at that time but I am not sure. I'll have to check it out.
I just experienced the same problem not too long ago. I was web browsing and my phone crashed and rebooted on it's own. I'm on the phone with Sony right now because I have the youtube issue as well. This sounds like a software issue.
Had mine since March 6. So far only one random reboot, none since update to 6.0.A.5.6
Sent from my SO-02D using xda premium
I called Sony Mobile Canada to report this issue. I told her others are having this issue as well. She's going to escalate it. I would like to encourage everyone who's having this problem to call Sony tech support in your Country and let them be aware of this issue. The more people call about this issue, just maybe they will work on a software fix sooner rather than later. Strength in numbers!
No restart on mine
I heavy use internet 3G/wifi on it
But,
I never flash anything on mine with flashtool or seus or pcc
Pure stock FW.67
12w14
AAD-AV
Only 2 "big" issue
Phone freeze one time
when plug charger in
VolumeUp+power solve the bug,
And the yellow tint on the screen.
Normally,when the phone keep autoreboot,or autopowerOff
It is caused by a dead battery
You can identify it
by keep hold power when the phone restart by itself
and at reboot
If the led blink 3 time red when holding power
That's indicated battery die
Or made a battery test in service *#*#7378423#*#*
But your phone is new !
So try a full charge with reset battery to get best power (volumeUp + power 5second one vibrate)
If your phone is rooted
you can delete manualy "power_supply"
in sys/class and reboot
with charger pluged in
After that,
try a full restore with seus with wipe data ect..
Can't help more :-(
Ciao
kaosdroid said:
Hi,
If you have this reboot issue
Nothing can resolve this!
But,just in case
Do not use your phone with charger pluged in for long time!
This kill your battery very quick!
And cause autoreboot
And be careful with internet!
If you flash some FW or rom or kernel
Made a full charge before flash
Ciao
Click to expand...
Click to collapse
Most bull **** reaction today...
Whats next?
Putting phone in fridge when charging?
Sent from my LT26i using XDA
Efe64 said:
Most bull **** reaction today...
Whats next?
Putting phone in fridge when charging?
Sent from my LT26i using XDA
Click to expand...
Click to collapse
I don't think so
Just read the forum
maybe you understand
I said that
because with my old x10
I encounter some restart and finally
Kill my battery
And nothing resolve this reboot on it!
I used the phone alway pluged and it come hot like *****!
And some people and dev said
MADE A FULL CHARGE BEFORE FLASH
This mean to avoid battery problem
But you!
What you suggest?
I just try to help or give some tips
And finally read the manual of your phone!
Especially battery section!
which browser you was using? and did that happen while downloading or just while browsing? and for how long you already was connected to wifi before the restart?
Eyados said:
which browser you was using? and did that happen while downloading or just while browsing? and for how long you already was connected to wifi before the restart?
Click to expand...
Click to collapse
I was using opera mobile and I was surfing about 5-10 min.
kaosdroid said:
I don't think so
Just read the forum
maybe you understand
I said that
because with my old x10
I encounter some restart and finally
Kill my battery
And nothing resolve this reboot on it!
I used the phone alway pluged and it come hot like *****!
And some people and dev said
MADE A FULL CHARGE BEFORE FLASH
This mean to avoid battery problem
But you!
What you suggest?
I just try to help or give some tips
And finally read the manual of your phone!
Especially battery section!
Click to expand...
Click to collapse
Sure i understand it much better then u.
What has random freeze to do with battery?
What you are telling is another section:
http://forum.xda-developers.com/showthread.php?p=25402228
Here you go.
Of course it getting hot.
Power means heat...
Logic.
This isnt a overclocked pc with grammacs core mg..
Kills battery and reboot. Right. Your right.
You go from a to z.
Do you even know what you are talking about?
He says freeze with browser bla bla, you begin with battery...
Nvm.
Good luck in your life
Sent from my LT26i using XDA
Since a few days my GS2 (rooted) turns off after rebooting.
When I change battery or put it to the charger phone will turn on, but will shut off after a servable time (time varies).
I tried different Roms but all do the same.
Also chancing battery doesn’t solve the problem (its firmly placed even laying down on the table it happends(.
I`m running 4.04
even when the phone isn`t warm I do have the problem.
Please how can I solve this
haka12 said:
Since a few days my GS2 (rooted) turns off after rebooting.
When I change battery or put it to the charger phone will turn on, but will shut off after a servable time (time varies).
I tried different Roms but all do the same.
Also chancing battery doesn’t solve the problem (its firmly placed even laying down on the table it happends(.
I`m running 4.04
even when the phone isn`t warm I do have the problem.
Please how can I solve this
Click to expand...
Click to collapse
All of this started when you rooted your device?
What ROMs have you flashed?
Try JB leak, if you still have problems there you could be talking hardware.
No the Phone was rooted a while de ago.
I was ussing CM 10
Send from A500 whit Tapatalk
Try JB 4.1.2
haka12 said:
No the Phone was rooted a while de ago.
I was ussing CM 10
Send from A500 whit Tapatalk
Click to expand...
Click to collapse
I was experiencing random shutdowns myself on 4.0.4, it did not matter which version (Orange Branded or LQ5) so I flashed the 4.1.2 Spanish version of JB and now the phone is a lot more stable. No reboots.
haka12 said:
No the Phone was rooted a while de ago.
I was ussing CM 10
Send from A500 whit Tapatalk
Click to expand...
Click to collapse
you need to check in CM10 thread whether any other user faced similar issue.
check is there any app which is eating the battery if so uninstall and check. there are many threads available on battery issue feel free to search
Ive had the same problem with a S2 on 4.0.4. When wifi was turned on, the phone would randomly lock up. While it appeared that it was shutdown it was still draining battery but didn't respond to any button except when holding the power button for a prolonged time to restart the device.
However since Ive been running the the OTA JB update for around a week now the problem seems to be gone. Are there more people who had this particular problem and had it fixed with the JB update?
Flashing firmware always helps.
Factory Reset is also helpful (4.0.4's brick bug present, so read before you wipe).
@op either factory reset or go stockland.
Sent from the little guy