Galaxy s2 charging port problem - Galaxy S II Q&A, Help & Troubleshooting

For the last week now when ever I charge the phone and unplug it it is still showing as charging do I just need to factory reset the phone or is the phone in need of repair cheers
Sent from my GT-I9100 using XDA Premium App

also when pulling battery and re inserting i get a yellow triangle with exclamation mark and a temp gage what does that mean ?

I have a similar problem.
No matter what charger I use, the phone randomly switches between charging and non-charging state.
Is this a problem with software or the port.
Just to clarify, I can hold the phone upside down, hanging from the charging cable, or wiggle the charger and it will continue to charge. The above error is just random. This leads me to believe it is a software or battery problem.

well after flashing back to o2 ke7 all is well again so must of been software related

Mine makes the plug and unplug sound randomly, sometimes it wakes me up at night and its not plugged in.
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NIK516 said:
Mine makes the plug and unplug sound randomly, sometimes it wakes me up at night and its not plugged in.
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Click to expand...
Click to collapse
It wants you to play with it.

NIK516 said:
Mine makes the plug and unplug sound randomly, sometimes it wakes me up at night and its not plugged in.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
This happens to mine too. I'm on the stock unbranded firmware and haven't rooted our updated. This problem randomly appeared about a month ago.

I've just started seeing this problem now in the past few days.
When I unplug the charger, either the battery charging icon stays on, or the "Battery full, unplug charger" notification stays there.
The big problem is if I turn off the phone. After shutdown, the screen stays on showing two different icons (changes between them every few seconds). One icon is a battery half full or so, the other is an empty battery with a yellow triangle and a icon of a thermometer next to it.
When this happens, I can't turn on the phone. The only way I can turn on the phone when this happens is to plug in the charger, start up, then remove the charger again.
I'm on rooted KG2, XWKDD kernel. Bit worried about this, I'll try another ROM & kernel but I don't think it's software related?

It is discussed in this thread:
http://forum.xda-developers.com/showthread.php?t=1132588
Summary:
http://forum.xda-developers.com/showpost.php?p=15924419&postcount=13
Cleaning USB port and in some times bending USB PCB downwards solves the problem.

plazzTT said:
I've just started seeing this problem now in the past few days.
When I unplug the charger, either the battery charging icon stays on, or the "Battery full, unplug charger" notification stays there.
The big problem is if I turn off the phone. After shutdown, the screen stays on showing two different icons (changes between them every few seconds). One icon is a battery half full or so, the other is an empty battery with a yellow triangle and a icon of a thermometer next to it.
When this happens, I can't turn on the phone. The only way I can turn on the phone when this happens is to plug in the charger, start up, then remove the charger again.
I'm on rooted KG2, XWKDD kernel. Bit worried about this, I'll try another ROM & kernel but I don't think it's software related?
Click to expand...
Click to collapse
thats exactly the problem i had its started doing it again but only when i have an unnofficial battery in the sg2 its fine on the sammy one as stated i bent the usb slightly down and even the unofficial battery seems to be playing nice

deffo a problem with the spare battery when its in it keeps going to usb mode and off and showing charging when samsung battery in its fine

Galaxy s2 car mode and charging port issue - resolved
HI,
I have been facing this issue with my galaxy s2.(When i have created samsung account and install Darky ROM 2 - XXKH3 ROM)
Issue:
1)Activation of CARD mode - automatically.
2)Charging automatically- though charger is not connected
3)Enabling the voice mode - automatically.
4)Battery draining problem.
5)auto handsfree speaker enabling
Solution:
There are two solution for the above problems:
1)Assume its not related to hardware (My case), i have wipe all the data(Using Darky Rom 2 tool), problem seems to occur even then.
I have updated the ROM to XXKG3_ODEXED. - that totally solved the problem.
I m using my S2 now for a week...no issue.
2)Assume its related to Hardware issue, (in some case's), you can clean the charging port by using thinner( nail polish remover - easy to get and cheap).
First u have to remove the battery, (preferably in direct sun light), use cotton to soak thinner, apply it on inner side of the port. keep the phone as it is for 20 minutes.(30 would be great).
Insert the battery, power on the phone.....problem solved.
I have tested it on 2 S2's, one with software problem and one with hardware issue.
Hope that will help....
__________________________________
Darshan - Napster
Samsung Galaxy s2
Darky ROM XXKG3_ODXED
Kernel: superCore1.4
Asus transformer B80 (Suck it - or leave it)

I don't think I ever faced this problem .. However , cleaning the usb port may help

Thanks! Had the same problem and cleaning the port and moving the contacts towards the display with a toothpick worked for me!

treble4 said:
also when pulling battery and re inserting i get a yellow triangle with exclamation mark and a temp gage what does that mean ?
Click to expand...
Click to collapse
Hello, i had the similar error. I had to send the phone to Samsung. Let see what happens....

same problem here..100 % same issue...what to do...this is pathetic

Same problem here, just after a month of having the phone started the problems. The five problems darshangkolhe said, but also: auto power-on of the phone when I switch it off, and what it is more annoying, it is very difficult to get detected by Kies when it is plugged to the PC. Sometimes it only starts charging and others nothing, not even charging the phone.
I am very dissapointed with Samsung, I have paid 500€ for what was supposed to be one of the best phones, but just after a month of use it is going crazy!!
I am bringing it to the Samsung´s technical support this week.

Take a toothbrush and brush the Micro-USB port vigorously. Fixed.
Having the same problem, fixed doing the above. This phone was awesome. But it just looks so much like its a big rush job with all the bugs that were there. The screen coloring. Now the USB-port.
Meh.. wondering about that 5 phone..

Thanks prodygee, but I´ve already tried with a cotton bud with a bit of alcohol and no luck. I will try to get my phone fixed by the technical support or replaced.
I can not think about the 5 phone, I have spent 500€ not even 2 months ago, so for me another phone is not affordable.
I just want my Galaxy S2 to work as expected, it is not a low-cost mobile!

mine has been fine since, but today it has started doing it again so its booked in for repair at CPW,technician states he has all the parts so will do it while i wait

Related

Galaxy S2 don't turn off but reboot!help!

hello...i hope that someone can help me....when i try to turn off the device,it shut down and after few seconds reboot?why?
also simetime the phone don't turn on and on screen i see a green battery with a thermo....someon can help me?
Did you find the answer to this? i am sending my SGS2 back for replacement. i have the same errors plus the following.
Phone selects speaker rather than earpiece as default for incoming/outgoing calls
Phone on ocasions randomly starts Kies and Voice commands even if there is no physical contact with the phone
sometimes the phone defaults back to a launcher i have never seen before (it is not touchwiz) and i have no idea how to launch it without it doing it automatically.
The faults you mentioned can be bypassed with a battery pull but they are annoying, I didn't have these problems until i upgraded my firmware through Kies to KE7.
I have an O2 branded device.
woody_2k said:
Did you find the answer to this? i am sending my SGS2 back for replacement. i have the same errors plus the following.
Phone selects speaker rather than earpiece as default for incoming/outgoing calls
Phone on ocasions randomly starts Kies and Voice commands even if there is no physical contact with the phone
sometimes the phone defaults back to a launcher i have never seen before (it is not touchwiz) and i have no idea how to launch it without it doing it automatically.
The faults you mentioned can be bypassed with a battery pull but they are annoying, I didn't have these problems until i upgraded my firmware through Kies to KE7.
I have an O2 branded device.
Click to expand...
Click to collapse
same issues to me... I'm trying to fix it flashing a stock rom without good results yet In the meantime I'm waiting for a USB jig from ebay before to send it to technical service
I have a I9100M(BELL) flashed with cognition 1.32 with same problem.
Randomly my phone will:
-go into driving mode
-answer calls in speaker phone mode
-start alarm clock
-think its charging when the cable is not plugged in
-Reboot it self/turn it self on when its off
-wont connect to computer or charge even when cable is plugged in.
I need to send it in for repairs what should i flash? there is no bell branded firmwares or roms.
jinxedsoul said:
I have a I9100M(BELL) flashed with cognition 1.32 with same problem.
Randomly my phone will:
-go into driving mode
-answer calls in speaker phone mode
-start alarm clock
-think its charging when the cable is not plugged in
-Reboot it self/turn it self on when its off
-wont connect to computer or charge even when cable is plugged in.
I need to send it in for repairs what should i flash? there is no bell branded firmwares or roms.
Click to expand...
Click to collapse
Exactly the same to me
How do you flash congnition? just over the stock rom with odin?
did you flash modem?
Absolutely same here, since coming from CM7 to VillainRom.
Never had that before.
I´m waiting and watching it and your results!
Thanks for this thread.
That's why I don't root the phone..it works fine.
---
- Sent from my iPad using Tapatalk
pachi72 said:
That's why I don't root the phone..it works fine.
---
- Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
This has nothing to do with root access.
I cannot believe that any problem related just because you have access to your system.
Back to topic, flashed back to cm but problem persists.
It's getting really bad near to flashing stock and bring it back to change device if someone knows what it is could be helpful.
I also have this problem. I think it has something to do with the usb port.
Because sometimes it just scans for media, or it thinks it is charging. Really weird! Then i just put in the charger and it stops for a while. Turning off will just reboot the device. And removing battery and plugging it back it also just reboots the phone.
I hope it is not hardware related...
I was looking for help for a problem I have but this seems to cover most of the problems I'm having.
Mine has recently started going into a strange mode after shutting it down. I get the battery charging symbol alternating with the "battery overheating" symbol.
The only way to stop it is to remove the battery for at least a couple of hours (if you put it straight back in it automaticly starts up and goes back to flashing the battery warnings) or pressing Power, Vol+ and Home and choosing Reboot.
I have also noticed its very slow to respond to plugging the charger in or out. It doesn't always wake-up and bleep when the charger is put in and it stays showing its charging for some time after the charger has been removed.
I was told that the charger should be removed as soon as charging is compleated but surely overnight is the only time we have available to charge these phones!
Depending on the custom rom or kernel you are using, it might not support off mode charging.
To avoid having a "problem" with charging the phone in off mode, some developers decided to make the phone boot up when the phone is been charged when the phone is off.
Going back to an official stock ROM fixes this problem.
cyanogen mod 7 said:
cm_galaxys2_full-23.zip (2011-08-15 08:48:18)
Enable power off charging (LPM) (android_device_samsung_galaxys2)
Click to expand...
Click to collapse
As for Cyanogen, since built 23, you can charge the phone when it is in the "off" state. Please wipe out your userdata partition before flashing. Do not restore from a previous backup.
I fixed my reboot problem (rebooting instead of turning off) by letting the battery drain all the way so it couldn't boot anymore. Tried turning it on to see if it really doesn't go on anymore. After that I plugged in the charger and I got the charging-symbol and it did not turn on so I kept it charging overnight while turned off and in the morning it was finished and turned it on.
I also cleaned the usb-port on the phone with a toothpick. It had alot of dust stuck in it which I couldn't see. After that no more problems...for now. They haven't returned for 2 days now.
WoollyBully said:
I was looking for help for a problem I have but this seems to cover most of the problems I'm having.
Mine has recently started going into a strange mode after shutting it down. I get the battery charging symbol alternating with the "battery overheating" symbol.
The only way to stop it is to remove the battery for at least a couple of hours (if you put it straight back in it automaticly starts up and goes back to flashing the battery warnings) or pressing Power, Vol+ and Home and choosing Reboot.
I have also noticed its very slow to respond to plugging the charger in or out. It doesn't always wake-up and bleep when the charger is put in and it stays showing its charging for some time after the charger has been removed.
I was told that the charger should be removed as soon as charging is compleated but surely overnight is the only time we have available to charge these phones!
Click to expand...
Click to collapse
What kernel and rom are you using? I have not seen the battery overheating symbol on the sgs2.
No, there is no need to remove the phone from charger, when the phone gets to what is considered full, the battery will stop charging by itself.
Are you using the original samsung charger that came with the phone, or are you using a after market charger? Most of these USB chargers do not send a signal on the data lines. When using these chargers, the phone becomes laggy and unresponsive, there is also a delay to register anything on the touch screen. Stay away from these chargers.
For lithium batteries just charge it whenever you feel like it. Lithium batteries have a few thousand deep charge cycles, meaning if you use up all the power, then charge it,you use 1 deep charge cycle. However, if you use the micro cycles for charging, you can charge the batteries a few million times. Leaving the battery on empty for too long will damage the lithium battery.
Can any one confirm if this is a hardware or software issue as i now have the problem when i try and switch the phone off it will just reboot?
The Same issue occurs in my sgs2
hi everybody,
i just got my sgs2 ten days ago
everything seems good at first
then i realized screen standby lock lag problem, there exist a lag between 1 second to 2.5 seconds.
i ignore that due to it cannot be named as a problem, it seems like a bad characteristic
then yesterday , i have faced with another problem
after i have docked the phone to the original vehicle dock kit,
phone cannot be closed via power button , i hold it 1.5 seconds then chose turn off among list, phone looks like to be turned off then after a little while it just vibrates and reboots. That is phone cannot be turned off, it s somehow turn itself on again.
Whats the reason of this problem ?
In another forum one faced with the same problem said that it turned out to be normal when the battery is erased but the problem is occured again after docking.
micro usb connector
I droped my phone in the water, got it alive again, but with all the error(overheat battery symbol, no stable usb connection, reboot when i power off, 100% charged not going away) replaced the micro usb connector with a new one.
Some problems are gone but i still can't connect to pc (kies, debug etc), poweroff problem still happen sometime.
Conclusion: It is not only the usb part of the phone that are causing this problem.
But I do belive its a hardware problem.
Have you phone maybe got to much to drink too..
usb port???
I've recently been experiencing the same problem
When I turned off my phone it switched on again!
And removing battery and plugging it back it also just reboots the phone.
Sometimes the USB connector and charger are confused
Do solved the problem by changing the USB port?
plz help me
Thank you in advance for helping me
This is definately a hardware issue. Clean the usb connector, failing that it will need replacing
On Behalf of SamsungCarla:
"Hello,
Samsung takes all product related issues seriously. We invite the customer to contact us so that they can examine the phone to determine the cause of this incident. If you send us your name, phone number, phone IMEI, where the product was purchased, and email address to [email protected], we will contact you to see how we can help.
Sincerely,
SamsungCarla
Samsung Support"

[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

[Q] Galaxy s 2 Battery/USB Problem?

So.. I have googled the crap out of this problem and seen loads of issues raised, but nothing solved.
I am coming from a Dell Streak and grabbed me a galaxy s 2 from craigslist a couple months back.
It has been running fine and I have tried a few roms/kernels and a few days ago I got the following error:
When charged to 100%, I get the notification to unplug, when I do, it sticks. No big deal but even when the phone battery has dropped to around 80% it stays.
It does not go into MTP mode or think it is plugged in via USB. Although, before this problem originated, the phone continuously vibrated between charging and not, when not plugged in.
I have calibrated the battery, tried a mixture of roms/kernels and I am now on unrooted stock. The problem still occurs and sometimes it does not recognise a USB connection, like today.
Probably worth mentioning that when turning on (and not plugged in) the phone does not turn right on, just boots into the battery screen and flashes between the battery charging and the overheating symbol.
Anyone got any ideas?
encima said:
So.. I have googled the crap out of this problem and seen loads of issues raised, but nothing solved.
I am coming from a Dell Streak and grabbed me a galaxy s 2 from craigslist a couple months back.
It has been running fine and I have tried a few roms/kernels and a few days ago I got the following error:
When charged to 100%, I get the notification to unplug, when I do, it sticks. No big deal but even when the phone battery has dropped to around 80% it stays.
It does not go into MTP mode or think it is plugged in via USB. Although, before this problem originated, the phone continuously vibrated between charging and not, when not plugged in.
I have calibrated the battery, tried a mixture of roms/kernels and I am now on unrooted stock. The problem still occurs and sometimes it does not recognise a USB connection, like today.
Probably worth mentioning that when turning on (and not plugged in) the phone does not turn right on, just boots into the battery screen and flashes between the battery charging and the overheating symbol.
Anyone got any ideas?
Click to expand...
Click to collapse
Turn off the phone and put it on charging. Once it beeps that its fully charged, quickly unplug the battery for 5-10 minutes. Should work and 'recalibrate' your battery
Sent from my GT-I9100 using XDA App
Thanks, giving a go now.
Do you need root to calibrate though? I am on stock firmware and not in front of a windows machine to use ODIN.
Vlad the Cat said:
Turn off the phone and put it on charging. Once it beeps that its fully charged, quickly unplug the battery for 5-10 minutes. Should work and 'recalibrate' your battery
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
OK, charged to 100% and got the full notification.
Left battery out for 10 mins and whacked it back in.
Turned on and it went to the overheating sign again.
Booted into the samsung recovery and I can boot into android from there.
Battery says it is as 88, cannot calibrate as I do not have root atm.
Any ideas?
encima said:
So.. I have googled the crap out of this problem and seen loads of issues raised, but nothing solved.
I am coming from a Dell Streak and grabbed me a galaxy s 2 from craigslist a couple months back.
It has been running fine and I have tried a few roms/kernels and a few days ago I got the following error:
When charged to 100%, I get the notification to unplug, when I do, it sticks. No big deal but even when the phone battery has dropped to around 80% it stays.
It does not go into MTP mode or think it is plugged in via USB. Although, before this problem originated, the phone continuously vibrated between charging and not, when not plugged in.
I have calibrated the battery, tried a mixture of roms/kernels and I am now on unrooted stock. The problem still occurs and sometimes it does not recognise a USB connection, like today.
Probably worth mentioning that when turning on (and not plugged in) the phone does not turn right on, just boots into the battery screen and flashes between the battery charging and the overheating symbol.
Anyone got any ideas?
Click to expand...
Click to collapse
i am actually having the exact same problem FYI im using exynos extreme rom 7.2 i think nt sure its getin worse before it used to detect usb mode somrtimes now it dosent!
encima said:
OK, charged to 100% and got the full notification.
Left battery out for 10 mins and whacked it back in.
Turned on and it went to the overheating sign again.
Booted into the samsung recovery and I can boot into android from there.
Battery says it is as 88, cannot calibrate as I do not have root atm.
Any ideas?
Click to expand...
Click to collapse
Get root and use the battery calibration tool from the market. The best idea so far. I suggest rooting with CF-Root, its fast and easy - its basically still your stock kernel but just with root.
If you really need the warranty or you'r scared of root you can install cf-root, calibrate the battery, then re-flash a stock kernel (unroot)
Sent from my GT-I9100 using XDA App
If i helped you, press thanks. Thanks.
Done and done.
Calibrated, even bought a new battery. Tried various other roms and appears to be an issue. Phone knows when USB is plugged in but does not seem to recognise the unplugging of the charger. And stays at 100% for a while before dropping down to like 80.
One thing to note is that this seemed to happen around the time of buying a dock for the samsung from Amazon, by Kidigi. I plugged the phone in to the dock without a USB cable connected to the dock and the dock LED lit up, making the phone think it was charging. Is this likely to have caused it/messed up the micro usb forever?
Thanks again guys!
well i think ive figured out what the problem was
Its due to overcharging or keeping the charger connected after battrey is full which has caused a hardware damage
im not sure if this is true but this is the closest explanation i can get the phone shows connected to charger even when diconnected only when i keep it connected for long time even after its battrey is full my usb connection has completely stopped working
---------- Post added at 01:56 PM ---------- Previous post was at 01:49 PM ----------
encima said:
Done and done.
Calibrated, even bought a new battery. Tried various other roms and appears to be an issue. Phone knows when USB is plugged in but does not seem to recognise the unplugging of the charger. And stays at 100% for a while before dropping down to like 80.
Thanks again guys!
Click to expand...
Click to collapse
well that the same problem with me when it shows connected to charger at 100% i restart it then the phone drops to ~80% battery although its 100% which makes the app battery monitor widget think i have a 1977mah battery while i have the standard 1650mah battery this must be the extra 20% which disappeared after the restart for me
I thought it may have been an overcharging problem, although no other phone I have owned has had this problem.
I let the battery charge all the way down (it stayed at 1% for about 3 hours) until it shut itself off. I left it on the side and it created a clicking noise, it was trying to turn the phone on as it knew the battery was in, even though it was depleted.
I plugged it in via USB to charge and it tried to turn on straight away. Shut it down and charged by plug until the 100% notification then turned on.
Still the same problem but one of my battery widgets warned that the battery was over voltage for a while before calming down.
If the phone cannot be off with the battery in, what could be causing that?
encima said:
If the phone cannot be off with the battery in, what could be causing that?
Click to expand...
Click to collapse
It has been known to be caused by a defective circuit board for the USB connector.
So, it needs a samsung return, I assume?
i have the same problem with overheating and usb plugged when there is nothing connected
i changed the usb port from the phone but it still having the problem!!!
i will try to put a new battery and see if it work and after post a reply

S2 thinks it is rechargin when it is not

Hi,
Yesterday when I took the phone off the charger normally, it started to indicate that it is being recharged, and a couple of seconds after it announces that it will no longer be charged and this same cycle continues and continues playing the annoying sound / message. I tried to fix it by removing the battery, but it did not help at all. I also tried to connect the phone to Kies but when Kies recognize it, the program crashes ...
So could someone please help me with this?
-Finnspirit
Finnspirit said:
Hi,
Yesterday when I took the phone off the charger normally, it started to indicate that it is being recharged, and a couple of seconds after it announces that it will no longer be charged and this same cycle continues and continues playing the annoying sound / message. I tried to fix it by removing the battery, but it did not help at all. I also tried to connect the phone to Kies but when Kies recognize it, the program crashes ...
So could someone please help me with this?
-Finnspirit
Click to expand...
Click to collapse
Did you try to blow some air in the usb port? As it may contain some dust that is leading your phone to notify you as if it is being charged...
sent with my homing pigeon
riro1612 said:
Did you try to blow some air in the usb port? As it may contain some dust that is leading your phone to notify you as if it is being charged...
sent with my homing pigeon
Click to expand...
Click to collapse
Didn't help But ty for advice.
Do wipe cache.
Sent from my GT-I9100 using xda premium
Hey,
I have been actually been having the same problem, it could:
1. bad charging brick
2. battery issue
3. kernel issue - i dont think its this one any more because i am still getting it on the stock leaked firmware.
4. usb charging board
i have tried flashing different roms / kernels and doesnt seem to be a cache / file issue since it happening before the phone boots. (charging screen)
if possible try another s2's battery in your phone... power off the phone and see if it auto starts or goes into charging screen. I have a spare battery and i dont seem to get the issue on that one. (still testing)
I also noticed i really only get the issue when i leave the phone charging for the night then wakeup. pull the charging cable and the phone doesn't register the disconnect and says its still charging. if i connect the usb to a laptop and connect and disconnect, it registers instantly.
i have looked for bent pins / dust.. depending on the better testing goes it may be the charging board that could be the issue.
good luck
astrialphantom said:
Hey,
I have been actually been having the same problem, it could:
1. bad charging brick
2. battery issue
3. kernel issue - i dont think its this one any more because i am still getting it on the stock leaked firmware.
4. usb charging board
i have tried flashing different roms / kernels and doesnt seem to be a cache / file issue since it happening before the phone boots. (charging screen)
if possible try another s2's battery in your phone... power off the phone and see if it auto starts or goes into charging screen. I have a spare battery and i dont seem to get the issue on that one. (still testing)
I also noticed i really only get the issue when i leave the phone charging for the night then wakeup. pull the charging cable and the phone doesn't register the disconnect and says its still charging. if i connect the usb to a laptop and connect and disconnect, it registers instantly.
i have looked for bent pins / dust.. depending on the better testing goes it may be the charging board that could be the issue.
good luck
Click to expand...
Click to collapse
I agree with you about the usb port problem. I also had a problem with the usb port, the battery icon was blinking all the time and the phone had a huge battery drain issue. All I could do is returning to stock, unrooting and bringing the phone to service center for repair.
sent with my homing pigeon

[Q] Galaxy S2 wont charge, wont turn on but gets warm

My Galaxy S2 appeared to be working fine with no issues but during a charge one day, I noticed it had gone black and wouldn't turn on. I swapped out the battery and changed the charger (both taken from a different S2 that had no issues) and it didnt fix the issue.
The rundown:
Taking a different battery/charger that works with another S2 doesn't make any difference
Phone doesn't show the battery charger icon when plugged in
My PC doesn't recognise the phone when I plug it in via USB
The USB jig doesn't seem to help do anything
Tried removing the battery and keeping it out of the phone overnight, put it back in and still nothing
Tried removing the battery, plugging in the charger, waiting awhile, putting the battery back and straight away pressing power button - nothing
The only sign of life is that the phone gets warm around the camera area when left on charge.
Any ideas?
kmmc said:
My Galaxy S2 appeared to be working fine with no issues but during a charge one day, I noticed it had gone black and wouldn't turn on. I swapped out the battery and changed the charger (both taken from a different S2 that had no issues) and it didnt fix the issue.
The rundown:
Taking a different battery/charger that works with another S2 doesn't make any difference
Phone doesn't show the battery charger icon when plugged in
My PC doesn't recognise the phone when I plug it in via USB
The USB jig doesn't seem to help do anything
Tried removing the battery and keeping it out of the phone overnight, put it back in and still nothing
Tried removing the battery, plugging in the charger, waiting awhile, putting the battery back and straight away pressing power button - nothing
The only sign of life is that the phone gets warm around the camera area when left on charge.
Any ideas?
Click to expand...
Click to collapse
my phone doing the same Since like 6 hrs ago
did you tried to turn it on when you didn't has battery (low battary) ? or you got the recovery mode before your phone stopped turning on ? because mine did and i dont know what to do too
I think you have burned the logic board
kmmc said:
My Galaxy S2 appeared to be working fine with no issues but during a charge one day, I noticed it had gone black and wouldn't turn on. I swapped out the battery and changed the charger (both taken from a different S2 that had no issues) and it didnt fix the issue.
The rundown:
Taking a different battery/charger that works with another S2 doesn't make any difference
Phone doesn't show the battery charger icon when plugged in
My PC doesn't recognise the phone when I plug it in via USB
The USB jig doesn't seem to help do anything
Tried removing the battery and keeping it out of the phone overnight, put it back in and still nothing
Tried removing the battery, plugging in the charger, waiting awhile, putting the battery back and straight away pressing power button - nothing
The only sign of life is that the phone gets warm around the camera area when left on charge.
Any ideas?
Click to expand...
Click to collapse
What was your Android version?
kmmc said:
My Galaxy S2 appeared to be working fine with no issues but during a charge one day, I noticed it had gone black and wouldn't turn on. I swapped out the battery and changed the charger (both taken from a different S2 that had no issues) and it didnt fix the issue.
The rundown:
Taking a different battery/charger that works with another S2 doesn't make any difference
Phone doesn't show the battery charger icon when plugged in
My PC doesn't recognise the phone when I plug it in via USB
The USB jig doesn't seem to help do anything
Tried removing the battery and keeping it out of the phone overnight, put it back in and still nothing
Tried removing the battery, plugging in the charger, waiting awhile, putting the battery back and straight away pressing power button - nothing
The only sign of life is that the phone gets warm around the camera area when left on charge.
Any ideas?
Click to expand...
Click to collapse
If this is still relevant (the OP posted 2 months ago)......
Phone won't power on, no charging icon when charger plugged in, recovery and download modes inaccessible, usb jig doesn't help, phone getting warm by the camera......I remember my time on the S2 forum, and these are all (when combined) a classic sign of a HARD BRICK.......
HARD brick = HARDware brick
SOFT brick = SOFTware brick
SOFT brick......usually recoverable
HARD brick......start using your phone as a paperweight......
Sorry mate, but unless you're prepared to spend out on a new motherboard, you ain't fixing it.....
Sent from my rooted, debloated stocKK kn0x0 SM-G900F
Thanks Keith & all.. it was indeed a goner. An expert took a look at it and found that the cause of the issue was the EMMC chip where the data is stored. Unfortunately it is too tedious/complicated to replace due to how it is soldered to the board (requires specialised equipment etc) so it was a choice of replacing the entire board or bust. Just wasn't worth it for an older phone. I ended up buying a Xiaomi Mi4i to replace the S2 and have been pretty happy with it (save for a few software bugs now and then).
keithross39 said:
If this is still relevant (the OP posted 2 months ago)......
Phone won't power on, no charging icon when charger plugged in, recovery and download modes inaccessible, usb jig doesn't help, phone getting warm by the camera......I remember my time on the S2 forum, and these are all (when combined) a classic sign of a HARD BRICK.......
HARD brick = HARDware brick
SOFT brick = SOFTware brick
SOFT brick......usually recoverable
HARD brick......start using your phone as a paperweight......
Sorry mate, but unless you're prepared to spend out on a new motherboard, you ain't fixing it.....
Sent from my rooted, debloated stocKK kn0x0 SM-G900F
Click to expand...
Click to collapse

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