Phone turns on by itself - Galaxy S II Q&A, Help & Troubleshooting

Hello guys i've got a problem with my s2 and i was hoping you could help me. I cant turn off the phone, y select turn off and it reboots.
If i remove the battery, the same happens when i put it back in.
Any ideas of what's causing this? Thanks in advance
Enviado desde mi GT-I9100 usando Tapatalk 4 Beta

Could be an app that's causing it.
Download "Wakelock detector" from Google PLay (free) and see what apps have wakelocks on your phone..

That's a usb flex / battery chip issue.
Water damage involved?
Swap ROMs (JB to custom back and forth).
How's you battery life doing?
Sent from the little guy

Related

HELP Reboot when screen turn off

My galaxy s3 felt down into water a month ago. After two days with no use i turn on it and it seems ok but after an hour it starts to reboot. I turn off again and wait a day. The next day was the same, at first is seems good but after an hour it start to reboot. I carried the telephone to a mobile repair shop and they clean it. They told me that the problems continue but perhaps they have a solution. They changed my IC power managament chip. The telephone seems ok and no more reboots when using it. But when i put it to charge it starts to reboot again. After the charge it only reboot when the screen turn off. Is there any solution? I dont know what more do. The only problems is the reboots, all the rests work propertly.
Enviado desde mi Nexus 10 usando Tapatalk 2
Replace it or live with the reboots .
Its a hardware problem .
But if you know what you are doing then its worth trying a stock rom flash first .
jje
The telephone has a stock rom, i am thinking that perhaps is a voltage problem and a kernel with underclock can save it. Is possible?
PD: sorry for my english
Enviado desde mi Nexus 10 usando Tapatalk 2
I install siyah kernel and no change. The telephone appears good, i can turn off the screen and no reboots. But i connect it to charge and after the reboots starts again. I dont know what more can do.
Enviado desde mi Nexus 10 usando Tapatalk 2

samsung galaxy tab 10.1 will not power on please heeelllppp!!!! ;(

Hey guys my tab has been working great for weeks iv never dropped it or anything it charges brilliantly, its not rooted and it does not have a custom rom on it as i only use it for work today out of the blue it turned off and will not power on i connected it to the charger and nothing happens iv changed the charger and still nothing happens iv held the power button for 15 seconds plus and that didnt work and finally iv held the power button and touched the screen, still nothing worked
Thanks for the help guys
Oh als
What can i do is their anything i can buy to fix this e.g download jig
Are you on 3.2 or 4.0.4?
Sent from my GT-P7500 using Tapatalk 4
eushaun99 said:
Are you on 3.2 or 4.0.4?
Sent from my GT-P7500 using Tapatalk 4
Click to expand...
Click to collapse
Hi im on 4.0.4
Thanks
Interesting...I have no idea what to do..
Can you try booting into bootloader? Hold power down + power button.
Sent from my GT-P7500 using Tapatalk 4
eushaun99 said:
Interesting...I have no idea what to do..
Can you try booting into bootloader? Hold power down + power button.
Sent from my GT-P7500 using Tapatalk 4
Click to expand...
Click to collapse
That didnt work it seems totally dead but i have read a lot about it online. Will a download jig work?
Thanks for your help matey
I don't know what's that lol. Sorry but I can't help you with it. Given that you're stock and unrooted, you might wanna send it to Samsung to fix it.
Sent from my GT-P7500 using Tapatalk 4
eushaun99 said:
I don't know what's that lol. Sorry but I can't help you with it. Given that you're stock and unrooted, you might wanna send it to Samsung to fix it.
Sent from my GT-P7500 using Tapatalk 4
Click to expand...
Click to collapse
No worrys i think ill change the battery or something haha. Iv got no warranty. A downliad jig forces your device in to download mode to be used with Odin lol
If you find anything else let me know matey i appreciate your help
All depends on what the "deadness " is......
Could be dead dead, or could be screen dead in which case stuff is happening but you can't see anything happening.
If you have already had device connected to a computer that has the appropriate drivers installed (talking windows here) open device manager on the computer then connect the tab and see what, if anything happens and might be detected... That would show tab is working but you cannot see it... If nothing happens immediately once it's plugged in, take a fairly long press on power button and see if anything is detected then. A long press on power button (15 sec+) would put tab in apx mode which actually shows nothing on screen but again device manager would show it (this is used for nv flash). At least this way you'll know if it's dead dead or "just" something else...
Btw eushaun99 is a great and helpful dude here and has my respect but I think he gave you a bum steer via a typo with his button pressing...I think he meant press power button and volume down for boatloader, not "power and power" as he wrote, so that is worth a try also... Am I ok with that eushaun99?
sent from my still superb Google I/O 7510 (xda hd)
stinky73 said:
All depends on what the "deadness " is......
Could be dead dead, or could be screen dead in which case stuff is happening but you can't see anything happening.
If you have already had device connected to a computer that has the appropriate drivers installed (talking windows here) open device manager on the computer then connect the tab and see what, if anything happens and might be detected... That would show tab is working but you cannot see it... If nothing happens immediately once it's plugged in, take a fairly long press on power button and see if anything is detected then. A long press on power button (15 sec+) would put tab in apx mode which actually shows nothing on screen but again device manager would show it (this is used for nv flash). At least this way you'll know if it's dead dead or "just" something else...
Btw eushaun99 is a great and helpful dude here and has my respect but I think he gave you a bum steer via a typo with his button pressing...I think he meant press power button and volume down for boatloader, not "power and power" as he wrote, so that is worth a try also... Am I ok with that eushaun99?
sent from my still superb Google I/O 7510 (xda hd)
Click to expand...
Click to collapse
Thanks, you are also a very helpful person on the Q&A section and definitely have my respect as well. Unfortunately, I can't help this guy so it would be very kind of you to take over from here.
You're right, its volume down, not power down. Oops
Sent from my GT-P7500 using Tapatalk HD
I have same issue too. My GT7500 starts only if I warm it till >45°C using a hairdryer or putting it under the sun (here in Italy very hot). But it's only for a normal boot, not in case of reboot when it goes all fine.
Inviato dal mio GT-P7500 usando Tapatalk 4
5p10ng3r said:
I have same issue too. My GT7500 starts only if I warm it till >45°C using a hairdryer or putting it under the sun (here in Italy very hot). But it's only for a normal boot, not in case of reboot when it goes all fine.
Inviato dal mio GT-P7500 usando Tapatalk 4
Click to expand...
Click to collapse
That sounds to me like the battery is tired, very tired and needs some help to produce current required, or a faulty connection somewhere. Once the tab is running the whole unit would tend to self heat so will reboot ok. Most fails are the opposite and are heating faults which is why someone came up with freezing sprays to track down which circuit comes back to life when cooled. Have you noticed any reduction of time that battery lasts between charges ?
Ciao
sent from my still superb Google I/O 7510 (xda hd)
No, it didn't change. This thing lasts since november and it's very annoying 'cause I have to pay much attention to not shut my tab off, elseway I have to get the hairdryer again and so on...
Inviato dal mio GT-P7500 usando Tapatalk 4
What does it do/not do when it doesn't start? Blank screen? Nothing? Bootloop? Freezes?
sent from my still superb Google I/O 7510 (xda hd)
Nothing at all. I keep the power button while warming the tab and when it decides it's enough it starts with the normal boot screen (samsung galaxy tab etc.)
Inviato dal mio GT-P7500 usando Tapatalk 4
stinky73 said:
All depends on what the "deadness " is......
Could be dead dead, or could be screen dead in which case stuff is happening but you can't see anything happening.
If you have already had device connected to a computer that has the appropriate drivers installed (talking windows here) open device manager on the computer then connect the tab and see what, if anything happens and might be detected... That would show tab is working but you cannot see it... If nothing happens immediately once it's plugged in, take a fairly long press on power button and see if anything is detected then. A long press on power button (15 sec+) would put tab in apx mode which actually shows nothing on screen but again device manager would show it (this is used for nv flash). At least this way you'll know if it's dead dead or "just" something else...
Btw eushaun99 is a great and helpful dude here and has my respect but I think he gave you a bum steer via a typo with his button pressing...I think he meant press power button and volume down for boatloader, not "power and power" as he wrote, so that is worth a try also... Am I ok with that eushaun99?
sent from my still superb Google I/O 7510 (xda hd)
Click to expand...
Click to collapse
Thanks for your help matey and thank you everyone else who's helped iv now sorted it :laugh: :highfive: cheers guys. I had to remove the screen to get to the motherboard then unplug the battery and pop it back in again charged it for 30mins and it sprung to life I have now flashed cm10.2 unofficial build that should sort it only problem was a destroyed the adhesive so I had to buy a load more but hey I should be happy it was nothing like a bead board etc thanks again :silly:
jmar8124 said:
Thanks for your help matey and thank you everyone else who's helped iv now sorted it :laugh: :highfive: cheers guys. I had to remove the screen to get to the motherboard then unplug the battery and pop it back in again charged it for 30mins and it sprung to life I have now flashed cm10.2 unofficial build that should sort it only problem was a destroyed the adhesive so I had to buy a load more but hey I should be happy it was nothing like a bead board etc thanks again :silly:
Click to expand...
Click to collapse
Brilliant!! That's a far quicker way than normal where people drain the battery by taping down the power button to drain battery to achieve reset.... :highfive:
jmar8124 said:
Thanks for your help matey and thank you everyone else who's helped iv now sorted it :laugh: :highfive: cheers guys. I had to remove the screen to get to the motherboard then unplug the battery and pop it back in again charged it for 30mins and it sprung to life I have now flashed cm10.2 unofficial build that should sort it only problem was a destroyed the adhesive so I had to buy a load more but hey I should be happy it was nothing like a bead board etc thanks again :silly:
Click to expand...
Click to collapse
Great!!
I'm too afraid of breaking my tab to remove the battery but maybe I'd have to.
Inviato dal mio GT-P7500 usando Tapatalk 4

[Q] Power button not working when powered down

Hello, I am having problems with my Atrix since I bought it.
It works great, but sometimes it powers down by its own, and then it takes many tries at the power button to get it running back again.
This also happens when I power it down, and sometimes when I connect the USB cable.
I have to repeatedly press the power button until it powers back on. I like the phone, and I really need it, so I would like to know what I can do.
Thanks
Did you try with another battery?
Yes I did, I actually have another Atrix and both batteries work well with that one
Same problem here.
Well I have the same problem with my Atrix too. Hope someone help us
Sounds like a hardware issie, when the phone shut down itself, it is hot?
What happens if when it powers off, you remove the battery, wait about a minute and try again?
Enviado desde mi MB860 usando Tapatalk 2
andresrivas said:
Sounds like a hardware issie, when the phone shut down itself, it is hot?
What happens if when it powers off, you remove the battery, wait about a minute and try again?
Enviado desde mi MB860 usando Tapatalk 2
Click to expand...
Click to collapse
I dismantled the Atrix and found nothing, when I was putting it back together, I tried to power it on to be sure nothing was left unpluged. And it powered immediately. When I finished arming it again, the problem returned, so I assume it has to do with a bad contact.
Anyhow, I ended selling it, and buying another one.

S3 Not Charging (No USB connectivity)

Hey guys, I've posted this on CM's forum, but I got no answer, so I came here to beg for help.
This is not just another charging issue where the battery doesn't charge to full. I'm desperate and I couldn't find anything that remotely relates to what's happening to me.
My phone doesn't charge. I may plug the USB from the computer or directly from the power outlet, absolutely nothing happens.
This problem started when I was on CM 10.1 and tried a 10.2 nightly, I don't remember which, but if it's relevant I may figure it out. Then, the phone started having a weird behaviour where it randomly started getting into Car Mode. I read elsewhere to try and freeze the Car Mode app, but I couldn't find it anywhere. Anyways, when this happened, the phone stopped charging. I tried other cables, other computers, other phones with my cables but I couldn't find the source of the problem. Even when powered off it wouldn't charge. Eventually the battery drained completely and then I was finally able to charge it. For a while, the phone worked perfectly, until it all started again...
Eventually I gave up the nightly and downgraded back to 10.1 and the problem stopped. But, recently there was the release of CM 10.2 M1 and I tried my luck and upgraded. My phone was damn perfect! The update was marvellous! Until, a few days ago, that god damned Car Mode went on again. And even weirder, I wasn't able to turn the phone off!!! Whenever I tried, it simply rebooted, never staying off. I tried removing the battery and putting it back on, but the phone would immediately switch on again. When the problem starts, sometimes I'm able to get some connectivity from USB but then it toggles the connection lots and lots of time. Through one night, that popup in Windows that tells that a new driver was connected appears about 30, 40 times... it's really annoying.
I then remember an issue I had with the battery of my late Motorola Milestone where I had to delete the battery_stats.bin, but what was my surprise when I got into the /data folder and it was empty! I tried searching for the file with ES Explorer but it isn't anywhere.
Right now my battery is now completely drained, but I'm not able to charge the phone anymore. I had to swap batteries with a friend of mine and he's charging my battery with his phone while I'm using his...
So I beg for your help. I can only charge my phone after the battery gets completely drained. Oftenly, when I go to sleep, there's still a few percents left and I have to do stuff to drain it to zero.
If there's any logs you may need, please ask. I love it, but I'm almost giving up on this phone.
UPDATE: I connected it to a friend's USB and it's now charging... go figure!
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
No need to go figure a search would have revealed the answer USB Cable .
JJEgan said:
Your question has been posted multiple times . Forum rules require you to search before posting .
Google <<< I9300 your search terms > xda
No need to go figure a search would have revealed the answer USB Cable .
Click to expand...
Click to collapse
I have searched and I have only found issues concerning battery drain or battery issues. There was nothing like what is happening to me, that's why I thought it was worth asking.
The problem is not that simple. I have tested my phone with different cables and other phones with my cables. The cables are not the problem. Also not a battery issue, since my battery works in different phones.
The only thing I can come up with is a problem, maybe bad contact in my phone's plug. But this theory may not be accurate since the problem is intermittent.
Intermitent misbehaviour too
fjcaetano said:
I have searched and I have only found issues concerning battery drain or battery issues. There was nothing like what is happening to me, that's why I thought it was worth asking.
The problem is not that simple. I have tested my phone with different cables and other phones with my cables. The cables are not the problem. Also not a battery issue, since my battery works in different phones.
The only thing I can come up with is a problem, maybe bad contact in my phone's plug. But this theory may not be accurate since the problem is intermittent.
Click to expand...
Click to collapse
I have the same problem. It works fine for some time and suddenly the car mode starts switching on and of, the screen rotates and then refuses to be charged. I tried the provided power source with the original USB cable, the laptop with another thicker USB cable. I opted to let the phone connected to the original charger all night. After several hours the flash awaken me. It was firing at random. Then I pressed the home button, the all grey battery appeared, and suddenly it started charging and the green level started up.
This is the second time it happens. The only thing that I notice afterwards is that windows 7 stopped recognizing the phone. I am not able anymore to send files with the thick USB cable nor the original USB cable provided. I changed the drivers (the 1.5.14.0), removed an reinstalled the previous KIES version. I think this may be hardware related. My phone has a valid warranty so I plan to send it to Samsung to be checked.
greetings
I have the same problem too. I'm going to send it to samsung.
Enviado desde mi GT-I9300 mediante Tapatalk
Solved, almost
Wow, I'd installed the omnirom, archirom, the last version 2.3.2, selected the option to install the mk6 modem and the USB started to work again with Windows 7,so it's a software related thing. I'd restored a 4.3 backup, andyrom, and it doesn't work again.
Enviado desde mi GT-I9300 mediante Tapatalk
8-( i'd tried reinstalling archirom, but it doesn't work.
Enviado desde mi GT-I9300 mediante Tapatalk
Anyone know anything about this?
Enviado desde mi GT-I9300 mediante Tapatalk
Clear microUSB port with thin brush, change charger cable or adapter, give one more chance to your phone
GT-I9300 cihazımdan Tapatalk kullanılarak gönderildi
Thanks, I'd cleaned again with no luck. It's weird because the charge works perfectly.
Enviado desde mi GT-I9300 mediante Tapatalk
s3
Hi,
I have similar problem regard to charging, it took unusual duration to full charge a phone (like over 10hrs). when on AC charged, it reflected on the battery page as usb charging, why? I understood if it recognized as AC charging the amphere will be higher like 1A, when on usb charging only able to get 460mA.
Anyone changed their charging port due this problem? Will it help? I tried swapping few chargers and cables, still slow.

My redmi note 2 keep shut down itself.

I use the latest stable miui 8 OTA, but it always randomly power off itself, after I boot it, it won't boot up, shut down again at mi logo. If I plug in the charger and power on, it can boot and show 50-60%. I don't know if it's because of faulty hardware or battery or software. This never happen if I use miui 9, pls help
lucius100 said:
I use the latest stable miui 8 OTA, but it always randomly power off itself, after I boot it, it won't boot up, shut down again at mi logo. If I plug in the charger and power on, it can boot and show 50-60%. I don't know if it's because of faulty hardware or battery or software. This never happen if I use miui 9, pls help
Click to expand...
Click to collapse
I think the problem is the battery. If phone works ok while connected on the charger then its battery. Maeby it will help to clean contacts on the battery.
Sent from my Redmi Note 2 using Tapatalk
Isaks said:
I think the problem is the battery. If phone works ok while connected on the charger then its battery. Maeby it will help to clean contacts on the battery.
Sent from my Redmi Note 2 using Tapatalk
Click to expand...
Click to collapse
The problem is it never happens in miui 9, since it's an old phone, I think it's rather waste to replace the battery with new one, coz mobile accessories more expensive than the phone itself :crying:
lucius100 said:
The problem is it never happens in miui 9, since it's an old phone, I think it's rather waste to replace the battery with new one, coz mobile accessories more expensive than the phone itself :crying:
Click to expand...
Click to collapse
If it never happened in MIUI9 then this rules out hardware issue. I think in few weeks stable version of MIUI9 will roll out.
Sent from my Redmi Note 2 using Tapatalk
It's difficult to tell whether it is related to the battery or not since it can be intermittent. I have the same problem but multiple batteries to test. It happens far more often with one battery than the other. I think the intermittent shut downs is a common problem with the note 2 and it is related in some way to battery power supply.
Redmi 4
I bought this xiosmi phone a few months back and it worked fine initially but recently, it keeps switching off by itself. It takes about 2 minutes to reactivate it and thus us very annoying. Is there anything I can do to solve this problem?

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