s2 won't power off - Galaxy S II Q&A, Help & Troubleshooting

Hi guys, I’ve had the s2 since it came out in the UK and have just rooted it as I wanted to try the custom roms out (never done this before, ever).
So I went to galaxys2root.com and followed his instructions to root the phone using odin and the said tar file.
Next step was to backup the phone by going into recovery mode and following the instructions through video. However when I press the power button to shut down / power off the phone it will just restart again without me doing anything.
The phone will stay on and works fine etc, I can use all the features but can’t shut down. I did go to thre CWM app and creat a backup on my SD card using the app which was done dine and the phone restarted but I still want to be able to shut the phone down.
Any help guys as I’ve tried using the search option and Google but can’t find anything useful. I tried JJEgan suggestion of doing a reset but it did not help. One post said try refreshing kernal but I don't have a clue what that was about, never got that far in the tutorial. Have only just rooted never mind installing a new rom.

Just a quick update:
I wa uccessfully able to apply the FoxHound_Otacon_V1_LP4_ICS_GSII_By_SnakeS rom but I stil get the same problem.
Any idea guys or is the phone damaged?

This is usually a dirty or damaged USB port. Try cleaning it with a dry toothbrush first. If that doesn't help, take the battery out and clean the USB port with a q-tip and a little rubbing alcohol, then let it dry before putting the battery back in. If neither of these work, your port is probably hosed and you need to get the part replaced.

ctomgee said:
This is usually a dirty or damaged USB port. Try cleaning it with a dry toothbrush first. If that doesn't help, take the battery out and clean the USB port with a q-tip and a little rubbing alcohol, then let it dry before putting the battery back in. If neither of these work, your port is probably hosed and you need to get the part replaced.
Click to expand...
Click to collapse
I was getting a similar issue before I rooted the phone. I used to get a error message saying voltage too high, charging paused and got my phone back today from the o2 repair centre as it seemed like the micro usb port was damaged. Got it back today and it was working fine so I thought ill decide to flash it and install a custom rom. Oh well if it still doesn't work after your suggestion ill ship it back to o2 to fix.
Thanks again.

probably won't help but i had a similar issue and it was no more powah causing the issue. real pain when battery died and phone was stuck in a constant reboot cycle

Solved by using a degreaser/solvent remover (had no 99% alcohol) and toothbrush. left it to dry overnight and its working fine now.
thanks ctomgee

Related

Q) Super Flashy Green Light with Crazy Flashing Flash (need help)

Hey guys, hoping someone here can help me with this. My brother recently brought me his broken Atrix. He's a bit of an idiot and doesn't take care of his stuff and before I tear this thing apart and see if something awesome is broke I'd like to ask you guys if you've ever seen this problem. The phone will not turn on at all. Not with my battery or his, so this is obviously not a battery issue.
If the phone is plugged into an AC adapter, the phone will sometimes flash the green status light in rapid succession as well as flash the two led flash at the same time. Other times the phone will only flash the two led flash and the screen will stay off. I have put the phone on rice just in case he effed it up by somehow getting it wet, and I am leaving it unplugged and without a battery for the night.
This is likely a hardware problem, again he is careless with his things and likely broke the phone but I was checking with the community first to see if there was a fix out there or if anyone has ever ran into this problem. Thanks if anyone can help.
I have not had this problem or heard of it before...
But maybe you could try a factory hard reset (since you can not get into the phone to do the software reset)...
Or if there is no water damage (check the back under battery to see if there is discoloration of the water-damage indicator) and there is no "obvious physical damage" maybe you can bring it in to where it was purchased if it is under warranty... instead of opening it up and voiding the warranty you may or may not have.
Sorry I could not have been of more help
But maybe you could try a factory hard reset (since you can not get into the phone to do the software reset)...
Click to expand...
Click to collapse
could i have a link to this? I don't think that this will be useful since i do not believe the phone even tries to boot. (google has said hold power and "camera buttons" what camera buttons?)
there is no indication of water damage, just normal ware on the phone. i just did it just in case.
also this phone is not under insurance or anything, so there would be no taking it anywhere.
thanks again for the reply.
You know what, I guess I was mistaken, I actually just read a couple hours ago about steps to do a hard reset, and I do infact recall reading something about a camera button... I just figured I wasn't aware of the button... But you're totally right, there definitely is no dedicated camera button on the Atrix, yet at least 5 different sites give the steps involving a camera button (I imagine it was copy and pasted from a generic "motorola hard reset" guide which doesn't apply to the Atrix, obviously)...
So yeah, sorry to say again, but I don't think I will be of much help to you,
and I only figured Motorola would offer some type of standard warranty on their hardware (assuming no physical/water damage), that's why I suggested bringing it in, but I did not even bother to look this information up, so they may not.
Err, thers a 1year warranty on the phone... Contact moto support over chat.
geishroy said:
If the phone is plugged into an AC adapter, .................I have put the phone on rice just in case he effed it up by somehow getting it wet, and I am leaving it unplugged and without a battery for the night.
Click to expand...
Click to collapse
If you plugged it into AC before putting in rice, and there was water in there, probably guaranteed to be fu**ed now. Never ever plug a phone into AC if you know or suspect water damage. And rice overnight is not long enough............needs a few days in a bag with rice to pull all the moisture out.
Did your brother even tell you what he did with it? Dropped it, washed it, sat on it......?
Can you boot into RSD and flash a sbf?
I had my Atrix messed up last week after trying some mods. Was stuck in boot cycle. Booted into RSD mode, flashed 4.1.26, and everything was good from there.
crnkoj said:
Err, thers a 1year warranty on the phone... Contact moto support over chat.
Click to expand...
Click to collapse
thanks will be sending it in tomorrow.
CaelanT said:
If you plugged it into AC before putting in rice, and there was water in there, probably guaranteed to be fu**ed now. Never ever plug a phone into AC if you know or suspect water damage. And rice overnight is not long enough............needs a few days in a bag with rice to pull all the moisture out.
Did your brother even tell you what he did with it? Dropped it, washed it, sat on it......?
Can you boot into RSD and flash a sbf?
I had my Atrix messed up last week after trying some mods. Was stuck in boot cycle. Booted into RSD mode, flashed 4.1.26, and everything was good from there.
Click to expand...
Click to collapse
i didn't suspect it of water damage, he likely dropped it a bunch and damaged something internally. i was just putting it on rice to make sure. but no the phone won't turn on or anything. so i'm going to send it in for replacement. thanks.

[Q] Galaxy S2 refuses to shut down.

I 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.
I got a youtube clip showing all this and I will update the post as soon the 'audio swap' is done.
The power button is not stuck.
It's not rooted:
Code:
Android version: 2.3.3
I9100XXKE7
2.6.35.7-I9100XWKF3-CL276555 root(at)DELL101 #2
GINGERBREAD.XWKF3
I 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.
What's the deal? Does anyone know how to fix this problem?
I'm asking this in order to avoid sending the phone to service since it most likely will be gone for a couple of days. I will not try stuff involving rooting the phone since I need to have the option of sending it to service without them refusing the phone due to rooting.
/Anders
What's the deal? Does anyone know how to fix this problem?
The deal is as always step one backup your data and via recovery factory reset .
Saves the service centre doing just that and may fix the problem .
jje
Hello,
Factory reset was one of the options I was trying to avoid. However I just performed a format/factory reset. And the problem is still there. When I shut down the phone restarts.
Also to add to the confusion the phone can also enter a state when I'm in the battery charging screen (Not booted phone) when a thermometer with a warning sign is pressent. However, I have waited for hours with the battery unplugged and everything is cold. That warning seams wierd to me and might be the root of all evil. That screen is pressent without a USB cable plugged in and that is also abnormal.
Any other options?
Thank you for helping.
/Anders.
I recorded the problem.
I cant post links in this forum due to:
"to prevent spam to the forums, ALL new users are not permitted to post outside links in their messages. After approximately eight posts, you will be able to post outside links. Thanks for understanding!"
but paste this search string to youtube
"galaxy refuses restart" and it's the top clip
alternatively add "/watch?v=eBB_3qtgj68" after the youtube url.
/Anders
Have you tried to hold down the Power button for 8 seconds? OR a battery pull for 10 minutes?
Regards.
yeah you should try and pull out the battery...
i had the same problem after I used the JIG on my phone.. it refused to shutdown, and kept rebooting it on each try to shutdown..
i pulled out the battery for awhile, and plugged it in and out to the charger..and it worked.
if it's still nagging you, try flashing a new kernel
Yes I tried pulling the battery and also used a battery from another S2 without any changes in the behaviour.
They talk about this problem at androidforums
androidforums.com/samsung-galaxy-s2/377331-spurious-battery-temperature-warning.html
Seams like there is no known fix for this problem yet.
I turned in the phone to the local service center today. We'll see what they say.
/Anders
andersc said:
Yes I tried pulling the battery and also used a battery from another S2 without any changes in the behaviour.
They talk about this problem at androidforums
androidforums.com/samsung-galaxy-s2/377331-spurious-battery-temperature-warning.html
Seams like there is no known fix for this problem yet.
I turned in the phone to the local service center today. We'll see what they say.
/Anders
Click to expand...
Click to collapse
My wife's S2 is doing this. So what'd they say? You get a replacement? They fix it???
SAME HERE
some people say that is a Hardware Problem, In my case was like this :
First Phone show Battery and triangle with temp and when booting phone is in KIES mode like is pluget in after reading of billions of forums i found that can be because of Sand,water etc on usb port, what i did i take a Air compressor and i clean a usb port via Air compressor and now phone refuse to shutdown only reboot but i can use a Usb debug Kies Maybe we have to try solding a Usb port !!!!
Here is a FIX
I had this problem for a 2 month ( he kill me) well i try all methods reflash resset and 8723728378237827382738273293872 bilions of methods so nothing...
How i fix!: i just purchase online(EBAY) Charger Connector Flex Cable (araound 16$) and i go to youtube and writte there galaxy s2 disassembly, i was waching this video 2 times and i repare by my self... in service they say i have to pay 80 Euros Well this is a solution
if you want to tellyou more abaut this call me at +386 49 317 350 i do not have any mobile Service im just like you
here is a link from eBay http://www.ebay.com/itm/Samsung-i91...Accessories&hash=item53e9ce63ee#ht_1259wt_958
Any updates regarding this? I'm currently having the same problem with my SGS2. :|
WeBMaZTaH said:
Any updates regarding this? I'm currently having the same problem with my SGS2. :|
Click to expand...
Click to collapse
Maybe your power button is faulty or stuck. Do you have a case? Is it somehow holding the button down after you release it?
Sent from my GT-I9100 using XDA
Generally this is caused by a dirty or faulty USB port. Shorts on specific pins with specific resistances will cause different behaviors.
Try cleaning the port with a dry clean toothbrush. If that doesn't work, take out the battery, and try cleaning the USB port with a q-tip and a small amount of rubbing alcohol. Then let it dry before putting the battery back in.
aRc. said:
Maybe your power button is faulty or stuck. Do you have a case? Is it somehow holding the button down after you release it?
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
The power button is not faulty or stuck. But thanks.
ctomgee said:
Generally this is caused by a dirty or faulty USB port. Shorts on specific pins with specific resistances will cause different behaviors.
Try cleaning the port with a dry clean toothbrush. If that doesn't work, take out the battery, and try cleaning the USB port with a q-tip and a small amount of rubbing alcohol. Then let it dry before putting the battery back in.
Click to expand...
Click to collapse
I've already tried it and no luck. The technician told me that it is the USB Port problem sometimes also because of overcharging the phone. The USB Port can be fixed immediately but the problem is my SGS2 is a Korean S2. They told me that the port is different from the one's that they have here in the Philippines. Is it true?
andersc said:
Hello,
Factory reset was one of the options I was trying to avoid. However I just performed a format/factory reset. And the problem is still there. When I shut down the phone restarts.
Also to add to the confusion the phone can also enter a state when I'm in the battery charging screen (Not booted phone) when a thermometer with a warning sign is pressent. However, I have waited for hours with the battery unplugged and everything is cold. That warning seams wierd to me and might be the root of all evil. That screen is pressent without a USB cable plugged in and that is also abnormal.
Any other options?
Thank you for helping.
/Anders.
Click to expand...
Click to collapse
Even i used to have these problems. Phone shows charging or usb cable connected for no reason out of the blue. Device wont simply shut down and would start up again.
What i did was perform a hard reset. Pull the battery out first and clean the usb port a lil bit. After some time it vanished
Sent from my GT-I9100 using XDA
daniel9895 said:
Even i used to have these problems. Phone shows charging or usb cable connected for no reason out of the blue. Device wont simply shut down and would start up again.
What i did was perform a hard reset. Pull the battery out first and clean the usb port a lil bit. After some time it vanished
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Until now, it's not happening to your S2 again? How did you clean the USB Port again?
Well nothin much...i just took a little cotton and cleaned whatever i can. And then i kept the phone off for about a day or two. And when i switched it back on voila the issue had disappeared
The only problem am facing now is the home button issue taking me to voice command. But then again i froze it with titanium backup. No issues after that
Sent from my GT-I9100 using XDA
And yeah...been 8 months since i last encountered that problem. Another thing is i used to Yank the device out from the usb/charger cable when plugged in. Now i carefully remove it without much force. Maybe that helped too. Just saying
Sent from my GT-I9100 using XDA

galaxy s2 will not charge and won't turn on after flashing with mobile odin, Help!

I was wondering if anyone can help, i tried flashing the new ics firmware with mobile odin last night, not the first time I've done this.
it got stuck in a boot loop but with just the Samsung logo, i left it overnight as it was late on and i left it on charge. When i checked it this morning the battery was dead and it now doesn't want to charge or turn on.
when you try and go into download mode it says low battery, is this phone now broken? is there anything i can do?
Did you do a full wipe in recovery?
no i didn't, and I regretted it afterwords
actually i think i may have done, i'm not too sure now.
should have sorted it last night whilst it still had charge
HEHE u just need a reflash , but... the battery completly discarged overnight.
just take a good battery from a friend with sgs2 or sgs , reflash and then charge u'r bat.. or simply charge yours somewhere.
The same happened to me yesterday when I tried to flash lpq. I took out the battery, connected to the charger, reinsterted the battery and turned on the phone then my phone would charge and I then used regular odin to flash.
thanks for all the help, guy i work with has an s2.
can't believe i didn't think to just swap the battery!
Just flashed LPQ with mobile odin too yesterday. No problems at all. Make sure you have the latest mobile odin and the file isn't corrupted
Sent from my GT-I9100 using xda premium
phone is up and running now, charging as i type this.
Possible fix, it worked for me..
So, after removing the battery I put it in the freezer. I have two so I figured i'd try this obscure method I found posted somewhere, I left it plugged into the charger without the battery. after 10 minutes or so in the freezer, i removed it took it out put it back in and it began charging, I powered up into CWM reset the battery stats, did a clean wipe of my current ROM, reinstalled the rom just to make sure it wasnt the rom doing it. and after powering on it was charged already to 5%
I have similar issue with my Galaxy S2 GT-I9100, Flashed with Odin could not turn off but still could switched on firmware was really slow so decided to flash to different had problem with welcome wizard so cleared cache and reset it in CWM, After that, phone were still working till battery get drained. Tried to charged it and turn on without any luck.Next day my mate told me that may be and issue with charging port, so i putted a knife inside usb port to clean it - no luck, when replaced battery with friends one phone turned on normally.When i pluged in the charger it turn off straight away and i noticed i condemned pins inside usb port so decided to replace Flex Cable inside after that phone can not start and charge even with friends battery. Any ideas ?
Sounds like you didn't replace the flex cable properly. Double check that.
Sent from my SAMSUNG-SGH-I727
jd1639 said:
Sounds like you didn't replace the flex cable properly. Double check that.
Sent from my SAMSUNG-SGH-I727
Click to expand...
Click to collapse
I double checked and nothing, a lifted cooper connector in case they did not touch with case, and still nothing, do i need to put cover screws back to close circuit ? if not that mean still having problem.
master00log said:
I double checked and nothing, a lifted cooper connector in case they did not touch with case, and still nothing, do i need to put cover screws back to close circuit ? if not that mean still having problem.
Click to expand...
Click to collapse
I don't know about the screws
Sent from my SAMSUNG-SGH-I727
You have short-circuited the pins in the usb port. As you connected the charge cable, the pins, which shouldn't contact each other, did.
I suspect that the main board got some sort of damage. It's basically a russian roulette of hardware faults, so only a repair shop could diagnose the problem, and most likely replace the main board.
Sent from my digital submersible hovercraft.

[Q] Phone is "charging' when unplugged?

I had this problem once before but it seemed to go away somehow, but it's come back and I think it drains my battery like a *****. My phone says it is charging even when I have it unplugged, but instead I think it just drains a lot as my phone mysteriously went dead one day after that issue.
I'm running MIUI v4 by the way.
f8ct said:
I had this problem once before but it seemed to go away somehow, but it's come back and I think it drains my battery like a *****. My phone says it is charging even when I have it unplugged, but instead I think it just drains a lot as my phone mysteriously went dead one day after that issue.
I'm running MIUI v4 by the way.
Click to expand...
Click to collapse
This is generally due to a dirty/faulty/broken USB port on the phone. Try cleaning it out with a dry clean brush. If that doesn't work, take out the battery, then clean the port with a q-tip and a (little!) bit of isopropyl alcohol, let it dry, and put the battery back in. If THAT doesn't work, you'll probably need to replace the part.
Thanks for the reply. It hasn't done it since. I was thinking it was because I hadn't updated MIUI since the first official v4 release, which I only found out last night heh.
I tried the brush and that didn't work. Haven't tried the second option yet but if that doesn't work, how much am I looking at to replace the part?
I've heard it's around $15 for just the part, but I don't actually know because I haven't had to do it so I never looked for the part myself.
Could be more if you have a service center do it.
Edit to add: see this thread and this thread.

Water Damage/ F1 Wont charge when turned on

Firstly I'd like to say that I stupidly dropped my phone in a bowel of water yesterday.
Following this ,I immediately turned the phone off, blew into the charging port to hopefully remove any water. and left it standing overnight. Then in the morning plugged it in to charge , which worked.
The following day (today) my phone will not charge when turned on, only charging when turned off.
I have tried multiple chargers, restarting the phone, holding the lock and volume button for 15 seconds and starting in fast boot mode, ect.
I am not sure what to do, possibly I need to get a new charging port and replace it myself, or with aid from a friend.
I cant find anything online regarding the issue with USB C phones, all of the instructions were for mini usb phones and they suggested bending the pins back into place in the phone, not sure if this s any help with USB C.
Should i leave the phone to stand in rice, over night, should I open it up and lightly apply a heat gun to it to evaporate any water in the phone, should I replace the charging port ?
Any advice would be greatly appreciated, not sure if this is the right place to ask,
-side note, I dont need anyone telling me i'm an idiot for dropping the phone in water, I already know this to be true.
monsterplatypus said:
Firstly I'd like to say that I stupidly dropped my phone in a bowel of water yesterday.
Following this ,I immediately turned the phone off, blew into the charging port to hopefully remove any water. and left it standing overnight. Then in the morning plugged it in to charge , which worked.
The following day (today) my phone will not charge when turned on, only charging when turned off.
I have tried multiple chargers, restarting the phone, holding the lock and volume button for 15 seconds and starting in fast boot mode, ect.
I am not sure what to do, possibly I need to get a new charging port and replace it myself, or with aid from a friend.
I cant find anything online regarding the issue with USB C phones, all of the instructions were for mini usb phones and they suggested bending the pins back into place in the phone, not sure if this s any help with USB C.
Should i leave the phone to stand in rice, over night, should I open it up and lightly apply a heat gun to it to evaporate any water in the phone, should I replace the charging port ?
Any advice would be greatly appreciated, not sure if this is the right place to ask,
-side note, I dont need anyone telling me i'm an idiot for dropping the phone in water, I already know this to be true.
Click to expand...
Click to collapse
Bro sorry to hear that but it's sounds like software problem not a hardware problem......please try and reset or reflash ur rom and hopefully it works
Sent from my Poco F1 using Tapatalk
I opened up the whole device , and used a hair dryer in a medium speed . And I even installed my rom again.
I had the same issue my phone didn't charge , now it is in great condition.
Backup ect before ROM
Narayanan21 said:
I opened up the whole device , and used a hair dryer in a medium speed . And I even installed my rom again.
I had the same issue my phone didn't charge , now it is in great condition.
Click to expand...
Click to collapse
Hi Narayanan
Thanks for your response, I will try doing this tonight.
Regarding the ROM, I am not familiar with the process, Is there a way I can backup my Phone and system settings ect, and then do this.
How does one install their ROM again, is it simply a factory reset ?
I am a newbie to these things,
-Kind regards
-platypus
Thankfully I had twrp installed and had a latest firmware inside . So I reflashed my rom again .
You try factory reset . Hopefully it will work.
delete
---------- Post added at 04:10 PM ---------- Previous post was at 03:53 PM ----------
Narayanan21 said:
Thankfully I had twrp installed and had a latest firmware inside . So I reflashed my rom again .
You try factory reset . Hopefully it will work.
Click to expand...
Click to collapse
Narayanan21 said:
I opened up the whole device , and used a hair dryer in a medium speed . And I even installed my rom again.
I had the same issue my phone didn't charge , now it is in great condition.
Click to expand...
Click to collapse
Rizoo27 said:
Bro sorry to hear that but it's sounds like software problem not a hardware problem......please try and reset or reflash ur rom and hopefully it works
Sent from my Poco F1 using Tapatalk
Click to expand...
Click to collapse
the phone fell in a bucket of water, instantly, took it out and stopped using for a while, but didn't even turn off. i have the same problem, the device is charging when switched off. it also was charging throug twrp now it does not work. i dont have a torx screw, getting it during lockdown is also impossible. i changed back to miui from lineage, doesnt seem to fix the issue. still does not charge.
what should i do? any help will be appreciated.
Poco F1 dead And not booting recovery and bootloader and it also got water damage
Unfortunately I flashed 1 Rom with Mi flash And Flash Another rom with twrp without formatting data,vendor etc then phone got stuck in twrp and when I try to boot to recovery then my phone was not booting and bootloader also not working and then by mistake phone fall into water it was working for (30 Minutes) then afterwards phone switch off and did not turn on I tried to charge phone but it is also not working plz give me solution and now it is lockdown also all shops are closed :-/

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