S2 refusing to turn on - Galaxy S II Q&A, Help & Troubleshooting

Hi. i have got my s2 since 10 months and no hassle. however since yesterday, the screen wont turn off and i could not make it turn on again using the home key. finally it completely switch off and i could not switch it on(neither soft or hard reset helped).
I just left in with the wall charger. nothing on the screen but once the battery was full, it vibrated and i could switched it on. it worked flawlessly for the day but now while i was using gtalk, same thing happened and i could not switched it on.
what could be the problem? i am an international user and bought the s2 from unlocked-mobile.com.
kindly note that i made no tweaking nor any custom firmware nor installed any new software. i only reecntly removed go launccher.
kindly help me please

if download mode works then u can flash ,or in recovery mode factory wipe.....yes forgot does it show charging batt icon ,wile charging?

Charge battery .
backup data factory reset phone ..
That fails try another battery .
That fails try Samsung service centre .
Or try download mode and flash new stock firmware via Odin .
jje

ok will try flashing ics. but why would this happen? what is the cause of such problem?

ok i did flash the ics and still the same problem. help me plz

Sounds suspiciously like the "Sleep of Death". Been discussed at length in dozens and dozens and dozens of threads here.

thanks. but why suddenly i am having this?
i have not installed any new kernel, firrmware or programs.

I dont understand why people with stock not rooted phones comes here and thinks this is samsung service, since it is purely stock..go to the retailer or call samsung.
Sent from my GT-I9100 using xda premium

Related

Stock Galaxy S II (No root) stuck in flight mode

I got my Galaxy S II about 3 days ago and love it. Apart from some annoyances (I'm looking at you Touchwiz) no problems... installed Launcherpro and here we go
Today I woke up and bam. Flight mode.
Factory reset
Wipe USB storage and SD card
Wipe cache from recovery (stock recovery)
No change.
So now I have a very fancy Samsung Galaxy II Player. I called tech support and they asked me to try another sim (which I had done) then told me to clear the cache (which I had done) blah blah... then they ended up telling me to send it back to Amazon as faulty.
Great, just great.
Anyone else had this problem?
Nope, haven't had this.
Intratech said:
Nope, haven't had this.
Click to expand...
Click to collapse
I'm wondering... if I flashed an update.zip from stock recovery if the issue might go away... it's clearly software.
Just need to find an update.zip file....
Also something quirky is happening with regards to lock screens. Had unlock pattern enabled and then switched off however it still remains on but only needs a press on the screen to unlock.
Personally wouldn't try flashing if it's being funky. Last thing you want is to get stuck with non standard firmware if you still need to return it.
pjfriend said:
Personally wouldn't try flashing if it's being funky. Last thing you want is to get stuck with non standard firmware if you still need to return it.
Click to expand...
Click to collapse
I want to flash and official update...
p.s.
This sounds similar except I can't turn Aeroplane mode on or off.
http://forum.xda-developers.com/showthread.php?t=1083358
I have the same problem with the phone that I bought today (a problem I noticed after 15 minutes of purchase). Tomorrow I bring it to a Samsung service center to confirm it as DOA so I can do the replacement for the operator ... I am disappointed that I was wasting my time on these things ...
p.s after I try code *2767*3855# a have no problems for last hour...
today i have problems again and I replace my galaxy...I hav new one without any problems...
I have a somewhat similar problem.
My Galaxy S II randomly goes into flight mode every now and then. It's not a permanent thing like what you guys experience, but it is an annoyance.
Couple that with the "wifi sharing" bug and I think we can say that Samsung has some faulty radio firmware in the Galaxy S II.
flash the generic xeu of ke7 from here
http://forum.xda-developers.com/showthread.php?t=1075278
this was tried but didn't work. Even a new radio package was flashed . Didn't help.
SGS2 running India distribution 2.3.3, unlocked. Not rooted. Stuck in flight mode, becacuse IMEI # cannot be read. Help !
could it be efs partition corruption?
It probably is /efs corruption. How do I recover it ?
Posting on behalf of my brother..
He to has this problem. Nothing we do fix's this resetting to factory defaults changing sim card formatting memory card..
Since it's done this.. it uses the battery from a full charge to near empty within ~5 hours
Bought 29th Aug 2011
They wont honor the warranty even though it broke down at only 2 months old.
DuttBeefe said:
Posting on behalf of my brother..
He to has this problem. Nothing we do fix's this resetting to factory defaults changing sim card formatting memory card..
Since it's done this.. it uses the battery from a full charge to near empty within ~5 hours
Bought 29th Aug 2011
They wont honor the warranty even though it broke down at only 2 months old.
Click to expand...
Click to collapse
Have you gone through Samsung directly? (Register on their website and request a repair).
I had this problem just now. Couldn't get it out of flight mode. Saying no sim etc...
The way I fixed it was to remove the sim and battery, replace them, turn the phone back on, the hold the power button to bring up the power options and press turn off flight mode. It now works again.
Not good that after I googled this problem it seems to be quite common.
tpr007 said:
Have you gone through Samsung directly? (Register on their website and request a repair).
I had this problem just now. Couldn't get it out of flight mode. Saying no sim etc...
The way I fixed it was to remove the sim and battery, replace them, turn the phone back on, the hold the power button to bring up the power options and press turn off flight mode. It now works again.
Not good that after I googled this problem it seems to be quite common.
Click to expand...
Click to collapse
I have this issue too, bloody annoying. I did a kernal update and I hope that fixes it. But will give your method ago.
My post is here - http://forum.xda-developers.com/showthread.php?p=21557309#post21557309
I had an interesting problem. My phone sometime stuck on flight mode. I had to restart device 4-5 times to disable flight mode(flight mode menu becomes transparent or untouchable). After a while button becomes enable and phone starts normally. But it's annoying problem.
Now I'm using Lite'ning Rom v1.1 XXLPH. Even in stock LPH,LPB, KK5 2.3.6.... every firmware I had same problems occasionally.
What's the problem? There is nothing wrong with IMEI (but I can't see IMEI in flight mode).
go in it recovery and clear data and then go to fix permissions
Sent from my GT-I9100 using Tapatalk
So is there a simple solution for this anoying problem, or it cames back every time ?
With Android 4.0 or 4.1 is the same?
I need to know as I am thinking of buying one that as this problem, at a good price.
Should i buy it?
thanks
Have you tried to reflash with kies?
I believe there is a recover option there? Atleast that wont get your waranty voided.
Never actually tried it since i only use heimdall & odin but might be worth a try!
Sent from my GT-I9100 using Tapatalk 2
galaxy gt i9003 -stuck in flight mode, not reading SIM
pzayx said:
Have you tried to reflash with kies?
I believe there is a recover option there? Atleast that wont get your waranty voided.
Never actually tried it since i only use heimdall & odin but might be worth a try!
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
kalpa108: galaxy gt i9003 stuck in flight mode, not reading SIM...and not recognised by recent version of KIES. Factory Reset does not fix this, device is not rooted, yet, but there's always a 1st time! Can this be done w/o any connection? Trying to download old KIES versions too.
Any layman ideas?
Yep. You're in the wrong forum, this in for I9100/variants.

[Q] I need some serious help/guidance!

It all started when i tried to root my Samsung Galaxy S2.
I tought it was to confusing to use the long way of rooting so i used to supercurio auto root kernel. I followed the instructions and everything went fine, but when the phone rebooted (like it said it would) it got frozen at the Yellow Triangle boot screen. After this i tried to flash many different kernels without luck, i tried to flash firmware roms aswell but that didn't work either.
The battery seems to be depleted and there is no way for me to open the Download Mode.
Im really new to the android world and i would be the happiest man in the world if i could possibly get the right answers.
P.s! When my phone actually had battery i couldn't open the Recovery Mode
No download mode then you need the USB recovery jig ebay/Google .
With a charged battery .
jje
But i can't charge it since the phone is stuck at the empty battery icon with the looping circle in it (which is stuck aswell). The phone just gets hotter when i try to charge it but i doesn't do any good at all
I think you'll just have to buy a jig and find a way to charge the battery again.
Maybe you can try a full battery from a friend?
Or charges yours in the Galaxy S II of a friend.
After that just try to reflash en wipe everything in cwm.
Good luck!
OKey, thanks for the reply but what does the USB jig really do? I have heard that it only boots the phone into download mode. But even if that works it still wont get the phone to operate as it should since i tried to flash different kernels before when i had battery left.
If i charge the phone right now, it will first show me the empty battery and then it just reboots back to the battery icon. If i press Volume down - Home - Power button it just says that i have to low battery and that it wont go into download mode. Recovery mode has not worked since the first time i tried to flash to Supercurio's auto kernel.
Plz help!
The experts should explain it better but the jig I think allows you to write data directly to the nand. There should be external chargers for the s2, you could try searching for that too.
I suppose what you should take away from this is that it pays to avoid shortcuts. I'm pretty sure it says on the cf thread that the auto root doesn't work on the phone.
Sent from my GT-I9100 using XDA App
Maybe you should try once more flashing a complete stock rom with repartion and pit.
A jig just puts your device into download mode.
It is very cheap on Ebay.
I don't think it is smart to try charging.
I once had a problem like this with the original Galaxy S .
I went to shop where I bought the phone and asked for a battery.
Just try to get a full battery and jig.
I think that is your only chance...
Good luck!
Have you tried letting it charge for some while? The S2 gets a little hot when charging so thats probably not a problem, if i were you i would let it charge for an hour or so and then try to enter download mode again
Thanks but if i plug the phone in with the charger nothing really happens. On the screen it's just a empty battery and within that battery there is some kind of circle that should be swirling but it is frozen, therefor i dont think the phone is actually getting any power...
Even if i set it up with a USB jig and a new battery, what kind of kernel should i use? And should i flash it with a new firmware?
I really have no clue on this one.
The phone only reacts to the button combination regarding download mode, but whilst in there it just says "low battery !! Can't download !!" and that's it.
Any more advices? I will die of happiness if someone helps me with this!
Thanks.
Looks like you need a service centre
or flash stock rom via Odin after accessing download mode via buttons or recovery jig .
You dont want a kernel you want full new stock firmware .
jje
Yea i got that now, but i live in sweden and before all of this i tried the swedish firmware version and it just says FAIL! in Odin.. im sure it would work out if i could get the firmware to reset the phone, which it does right? I guess i should fix me a battery since it seems i can't charge it properly. Any one who could explain it more detailed? It would help me alot.

[Q] HOW to Update or reflash Galaxy s2 Bootloader

i have a problem with my galaxy s2 exactly like this: got a wierd problem. My galaxy S2 refuses to shut down.
When I shut the phone down without a USB cable connected then the phone turns black and the 'menu and 'return' button lights up then the phone vibrates. at this stage before the buttons turns black and the phone was totally shut down. now instead the buttons are still lit after the vibration and then the phone starts up again.
With a USB plugged in after the vibration when shutting down I get to the screen where the battery indicating charging is shown, but as soon i remove the USB cable the phone starts.
The power button is not stuck.
It's not rooted: cleared the cache in 3e recovery. No change.
I fully charged my battery. No change
I drained my battery to 0%. No change
I tried another battery. No change.
Well i thing i should Re-flash a Bootloder or install another one, is there any idea how to do that throw ODIN1.85 Please please please help me im just
First step back up data factory reset phone .
Do not start messing with bootloaders flash a full stock firmware if you have to .
jje
Bootloader via Odin available in intratechs thread. In post where ki3 is. Maybe 3rd post???
http://forum.xda-developers.com/showthread.php?t=1075278
Sent from my GT-I9100 using XDA App
WELL....
Can you people be more clearly on Ur Tips Please, Do i have to Update Bootloader or Bootloader will Automatically update after i flash a Full firmware via Odin or during update a frimware do i need to click a tick there writting "UPDATE BOOTLOADER" or not or let me know any Solution pleaseeeeeeeeeee . English is my 3rd Langue so Please try to explane with a Simply English Brothers and sister. I feel sucks No one can fix my Problem here in Kosovo.
If you are going to flash New firmware via Odin from intratech you will automatically get the right (older) bootloader that lets you clear the flash counter with the jig.
If you have already flashed KI3 or KI8 from somewhere else chances are you will have the new bootloader flashed on your phone.
If that is the case intratech has the older bootloader that you can download and flash via Odin without having to flash the full firmware again.
Read the 1st few posts in his thread carefully for the exact steps to follow.
Good luck.
Sent from my GT-I9100 using XDA App
@ aceofclubs and Others
Well i try Many of Roms to flash i try with older and newer Problem still there, i think i need to Change a Usb Port (Electronic Usb maybe i demage with a bad Charger or Who know). Is there any Idea where i can Buy&Purchase Galaxy s2 Electronic Parts
I has this same problem after flashing ki4. Would not shut off. Kept booting up every time I tried to switch off. After a bit of searching I found a fix got my phone. Just remove the battery for 30 seconds. Reinstall and try again. Might not work for you but won't cost anything to try.
Edit
Just read. You already tried another battery do this won't help you. Sorry.
Sent from my GT-I9100 using Tapatalk
YEAHH
dear Friend thanks for trying to help me, but i can not find a human being that can tell me how exactly to fix my problem i have this problem 1 month, for me it will be enough to know if is a Software or hardware problem. Problem is here in Kosovo we dont have a Samsung Store that can fix, only a solution is to send in Germany(1.441 Km ) , it will coast to me just a new Galaxy s2... i have exacly this problem like this guy in youtube here is a link : http://www.youtube.com/watch?v=eBB_3qtgj68
or check this thread: http://forum.xda-developers.com/showthread.php?t=1237228

[Q] SGS2 wont boot after OTA official upgrade

Hi folks,
Yesterday my phone was weird: The home button was opening a different page than the launcher (a sort of launcher with a clock and buttons, and when I tapped "escape" it drives to the official launcher), and some functions weren't working (such as the rotate toggle). Looked like something was updated, but a reset was needed.
Then I reseted the device and then it went to the ODIN mode with the green robot and the message "downloading, don't turn off target". It took too long. Like more than 4 hours. I left the device plugged in charger and went to bed.
Today I found the device turned off (probably the updated ended) and I can't boot. Actually nothing happens, no button combination, etc.
I tried to pull off the battery and put it back again, nothing happened.
I tried a soft wipe (hold the ON button for 7 seconds without the battery), nothing happened.
Could someone please help?
So....what firmware was installed originally? which rom did you try to install? It's all in the details. Oh, and which model Galaxy S2 do you have?
stoney73 said:
So....what firmware was installed originally? which rom did you try to install? It's all in the details. Oh, and which model Galaxy S2 do you have?
Click to expand...
Click to collapse
I didn't try to install anything.
I was using the latest verision of my country stock rom (The carrier is Claro). The update was automatically, I didn't choose to do that.
The model is I9100GT
Get, buy, borrow another full battery or external charger to charge your dead battery.
If out still won't boot:
try boot into recovery and factory reset
Or
Boot into download mode and flash firmware downloaded from here.
http://forum.xda-developers.com/showthread.php?t=1075278
Edit: look for only G model firmware.
If none there, use check fus for windows to find and download firmware for your device, then flash in Odin.
www.fus.nanzen.se
Sent from my GT-I9100 using xda premium
I had a similar problem with a kies flash before. If it will go at least into download mode when a charger (not just a USB from a computer) is connected, your battery might be completely flat. try charging it in another phone.
Here is my panic thread: http://forum.xda-developers.com/showthread.php?p=22408184#post22408184
Hi Folks,
Thank you very much for the replies.
Now the cell phone is working. I guess that the charger went broke during the night (I have no idea why). I connected via USB and then I heard a sound, after that it went back to the upgrade screen (odin), and I reseted.
Now its working and I have no idea of what happened.
so why in hell would you leave your phone to download mode for night.
Sent from my sgs2 running cm9 using xda app

[Q] note keeps rebooting

my samsung galaxy note i717 will boot up stay on for 1 or 2 minutes then reboot and do this over and over again. ive searched the forums ive been to att store and called samsung support and nobody knows why or how to fix. my phone is no longer under warranty. i have bought a new battery, and restored it in kies with no luck. i can get into download mode and recovery mode and phone works fine and will stay on till battery dies. these are the only 2 modes that work. a regular boot will not stay on. has anyone ever had/heard of this problem?
FilthyScarol said:
my samsung galaxy note i717 will boot up stay on for 1 or 2 minutes then reboot and do this over and over again. ive searched the forums ive been to att store and called samsung support and nobody knows why or how to fix. my phone is no longer under warranty. i have bought a new battery, and restored it in kies with no luck. i can get into download mode and recovery mode and phone works fine and will stay on till battery dies. these are the only 2 modes that work. a regular boot will not stay on. has anyone ever had/heard of this problem?
Click to expand...
Click to collapse
Sounds to me as if you have tried almost everything.
Sounds odd that it would stay on in download mode and be the usual sticky power button issue, but we are persuing all avenues right?
Give your phone a couple good flicks to the back of the phone in case its the power button. It may be clicking as if no problem, but that doesnt mean anything.
Give it a shot and boot it up.
Sent from my SAMSUNG-SGH-I527 using xda app-developers app
Fixed problem by flashin 4.0.4 update zip through odin. Thanks.
Edit - 4.0.4 works but wont read sim. Went back to kies to update to 4.1.2 and reboots started again. Not sure what the problem is
Maybe go back to odin, and install a stock .tar file image for the i717. Not just an update.
This video at YouTube shows how to do it with download links for all the files necessary. .tar files too.
http://www.youtube.com/watch?v=m8tg9AlfOQ8
HTH

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