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Old July 18th, 2011, 03:30 PM   #1 (permalink)
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Default Spurious Battery Temperature Warning

I have two batteries for my SGS2. One is the original battery and the other an after market one I bought on eBay. I have been using both for a few weeks without any problems until today.

When I swapped out my after market battery for my Samsung one, I get what appears to be a battery temperature warning. Before the phone was switched on, the display alternates between the large battery icon in the centre of the screen with 5 white dots below it and a battery icon with a yellow triangle with an exclamation mark inside it with a thermometer icon overlaid.

I have never seen this before but it appears to be a battery temperature warning. The battery was stone cold (or at least room temperature) and the phone was at normal operating temperature, which, in my case, is again barely above room temperature. Neither is even warm let alone hot.

Turning on the phone with this flashing is difficult and the only reliable way I can do it is to boot into CWM and reboot.

Has anyone else seen this? Does anyone have any idea what's wrong with it?

BTW My after market battery continues to behave perfectly normally as it always has.

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Old July 18th, 2011, 04:28 PM   #2 (permalink)
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Hi,
I have a 3 week old s2 with a factory battery fitted. I had the same problem this morning, the phone was cold no signs of heat.

Cheers Jay
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Old July 18th, 2011, 06:02 PM   #3 (permalink)
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I'm going to phone O2 and ask them to send me a new battery. With any luck they won't mess about and will just send me one.
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Old July 19th, 2011, 02:06 AM   #4 (permalink)
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I tried again this morning and all's well.

I have no idea what caused this but if it doesn't recur, I shall forget about it and think myself lucky.
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Old July 19th, 2011, 02:24 AM   #5 (permalink)
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I put mine on charge last night, it seems that it isn't charging when the symbols are flashing on the screen.
I had to do a reset to get it to turn on.
Any ideas?

Cheers Jay
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Old July 19th, 2011, 05:16 AM   #6 (permalink)
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Originally Posted by lotus49 View Post
I tried again this morning and all's well.

I have no idea what caused this but if it doesn't recur, I shall forget about it and think myself lucky.
Mine did exactly this about 2 months ago. I've had no issues since and the symbol hasn't reappeared..

Hope this helps?
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Old July 19th, 2011, 02:45 PM   #7 (permalink)
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I get this and its a pain in the butt to get the phone back online. I find knocking out the battery and then putting it in works sometimes.
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Old July 19th, 2011, 03:51 PM   #8 (permalink)
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I get this and its a pain in the butt to get the phone back online. I find knocking out the battery and then putting it in works sometimes.
I did try that several times without success.

Although my phone wouldn't boot normally, I was able to start CWM (my phone is rooted) and rebooting from there worked OK.

I'll keep my fingers crossed but since this has happened to several people, I'm wondering if it's a bug rather than a defective battery. We shall see...
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Old July 20th, 2011, 11:14 AM   #9 (permalink)
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My sgs2 is doing the same thing, it also makes the charger connected beep at various different points through out the day even though the charger is nowhere near the phone. The phone is being returned to O2 tomorrow for a swap.
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Old July 21st, 2011, 06:02 AM   #10 (permalink)
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Mine is starting to do this... less than a week old. Just tried charging at work, it charges for a few seconds then vibrates saying "charging paused, battery temperature too hot/cold to resume charging" or something along those lines
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Old July 21st, 2011, 07:51 AM   #11 (permalink)
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If you have rooted your phone and can access CWM then it's fairly easy to get this working temporarily at least.

I boot into CWM (Home button + volume up + power button) and then select Reboot (top menu item) and press the Home button again. That way it boots up fine and behaves (or did in my case) perfectly normally until you turn it off again.

While my phone was showing the warning, I tried about 30 times to boot by just pressing the power button and it only worked once. Doing what I suggest above worked every time.

It's odd that no-one had reported this until I asked my question but now several people are having the same bug.

My firmware is KE2 and the phone is on O2 in the UK, what about others with this problem?
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Old July 26th, 2011, 02:52 AM   #12 (permalink)
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Same thing over here!

The phone seems to work normal, but when turned off battery warning with thermometer icon flashing.
My phone is also rooted.

One weird thing I'm also experiencing is I can't turn off USB debugging mode.
It says:USB is connected. Remove the cable.
Maybe you have the same problem and it's related?

BTW thanks for the workaround for starting the phone!

I'm curious what the causes may be...
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Old July 29th, 2011, 02:29 AM   #13 (permalink)
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Are there other people with this problem?
Someone who has a solution or something for it?

Shall it be my battery, or is there a problem with the firmware or something?
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Old July 29th, 2011, 05:19 PM   #14 (permalink)
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I'm the OP and this hasn't happened again to me. I have been using the Samsung battery regularly since the problem arose 11 days ago and I haven't had any further problems.

It's a rather strange problem but since it's gone away in my case, I have stopped worrying. Perhaps your phone will just magically start working again like mine did.
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Old July 31st, 2011, 03:02 PM   #15 (permalink)
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Quote:
Originally Posted by tom.geypens View Post
Same thing over here!

The phone seems to work normal, but when turned off battery warning with thermometer icon flashing.
My phone is also rooted.

One weird thing I'm also experiencing is I can't turn off USB debugging mode.
It says:USB is connected. Remove the cable.
Maybe you have the same problem and it's related?

BTW thanks for the workaround for starting the phone!

I'm curious what the causes may be...
I'm suffering from exactly the same problem with the battery and temp sign and the USB problems you have.

I can't find anyway around it and much googling hasn't found any results.

My phones is on a Vodafone business tariff, so I'm going to back it up and then get an exchange, as it's just too irritating now.

Oh and I have hard reset to see if it went away and it never.

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Old August 4th, 2011, 01:00 PM   #16 (permalink)
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Same here with startup temperature warning.

1. If I shut down the phone its starts again with battery icon and temp alarm.
2. If I remove the battery for a while and put it back, the phone starts with above. So there is no way to have the phone shutdown with the battery connected.
3. With Restart from Service menu, the phone starts but wants to start sync MTP Connection. No way to see the main screen or program just the big sync screen.
4. After a lot of testing I don't know how but I get back to the main screen and try to change usb debugging but I get the message: USB is connected. Remove the cable.
5. Have tried to do a factory reset, change ROM's / Kernel without any success. Orginal, Stock, CM7, VillainROM
6. Have removed the battery over the night but same problem.

I hope someone found a solution soon.
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Old August 4th, 2011, 01:25 PM   #17 (permalink)
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Have you guys tried wiping the battery statistics or using a calibration tool? Check this unrelated thread on XDA that describes both.

[Q] cant wipe battery stats - xda-developers
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Old August 4th, 2011, 01:27 PM   #18 (permalink)
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Have you guys tried wiping the battery statistics or using a calibration tool? Check this unrelated thread on XDA that describes both.

[Q] cant wipe battery stats - xda-developers
I Have, without success
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Old August 4th, 2011, 02:27 PM   #19 (permalink)
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My phone was also doing this as above, and it wouldn't turn off. It would switch off and turn back on. I rang Samsung and they said to take it to a Samsung service centre. They had it 2 days and said they could not repair it, it's got to be sent away, that was 17 days ago not happy. The phone was about 2 weeks old.
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Old August 4th, 2011, 02:27 PM   #20 (permalink)
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It's worth pointing out that this appears to be related to the battery not the phone.

I have two batteries and the after market one always worked fine. It was only the Samsung one that caused a problem. If you have a friend with the same phone, try swapping batteries and see what happens.

In any event, replacing the battery should be enough I think (although I haven't done any testing as my phone stopped doing this the day after it first happened and hasn't done it since).
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Old August 4th, 2011, 03:02 PM   #21 (permalink)
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Quote:
Originally Posted by lotus49 View Post
It's worth pointing out that this appears to be related to the battery not the phone.

I have two batteries and the after market one always worked fine. It was only the Samsung one that caused a problem. If you have a friend with the same phone, try swapping batteries and see what happens.

In any event, replacing the battery should be enough I think (although I haven't done any testing as my phone stopped doing this the day after it first happened and hasn't done it since).
With your bad battery did you have problem with MTP Connection / USB start syncronize without any cable attached directly after startup?
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Old August 4th, 2011, 06:12 PM   #22 (permalink)
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Quote:
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With your bad battery did you have problem with MTP Connection / USB start syncronize without any cable attached directly after startup?
Fortunately not.
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Old August 8th, 2011, 08:07 AM   #23 (permalink)
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For the moment my phone is OK without temperature and usb problem.
I was thinking to go to the store for service today but when I put the battery back again. Tada

This is how I solved it.

Removed the battery
Move the simcard to another phone because is a business phonenumber.
Let the phone rest without battery for 3 days.
I tried with one night first without any success.

Might be worth a try for you?
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Old August 11th, 2011, 05:06 PM   #24 (permalink)
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Hi,

I have this phone myself, bought it back in May.

Yesterday, I was unlucky enough to drop my phone on the floor in a small puddle of water, which got into the USB port. I quickly picked it up, turned the phone off, opened the back cover, took out the battery and wiped everything off, then I used pressurized air to further blow any water inside out of it. Then I did something I perhaps should not: I put the battery in short after to try and start it, and then I got the same warning display as you describe here with the temperature icon next to it. I have a stock phone, not rooted or anything.

It did not want to start on battery power alone, it was just stuck at displaying the battery with the yellow warning icon and temperature icon, alternating. Tried a soft-reset and a hard-reset without any luck.

I then tried to plug a charger in to start it, it did actually start, but the first thing it did was to start the MTP sync application stating it was connected. It did this every time I started the phone using charger (both wall and PC USB cable). I plugged the charger out, the MTP application remained on screen saying it was connected. Also noticing the battery icon showing it was still charging, after I unplugged it. It took 15-20 seconds before the battery icon updated and showing it was not charging, but the MTP application remained on screen saying it was connected. I hit the home button to close it, tried to enable Mass Storage Device mode but it said the phone was connected (even through it obviously wasn't), and that I had to unplug it to continue.

Plugging the USB cable from the PC to the device did not work either. Well, I got the USB connected sound from Windows, but nothing happened (it did not show up as a device). I use KIES for updating firmware, it also did not detect it. It did detect it when I connected it later, but it just hung at "Connecting" with the spinning icon next to it.

After trying different methods to make it work, even doing factory reset, I attempted to restore my latest backup done through Kies (which worked the one single time it did connect after all this happened). I got an error message, after seeing everything got a nice green V, saying an error occurred. Checking my phone, everything was actually restored. But my battery indicator app did not wanna play ball with the battery, it wasn't measuring battery usage and the on-battery-timer wasn't ticking.

I took out the battery and left my phone opened with the battery next to it over night, next day same thing happened.

Since I work in a big-brand electronics store, I took a brand new battery from an exhibition model in our store, which I know was working, and the same thing happened. I also tried the charger from the exhibition model, it always started the same way and ran MTP upon boot.

This means it was not the battery. For double-checking, I tried a brand new battery right out of an unopened box, this also did not work - I also tried the charger from this, no difference in result. The problem was with the phone. Yes, it was dipped in water, and yes, I should've left it drying over night even though I managed to force every drop of water out of it.

I also saw that when I managed to start the phone after the incident while it was connected to a charger, my battery indicator app showed that the battery was giving overvoltage (3.91-4.13 volts). Temperature was perfectly fine however.

I can't say for sure if the contact with the water caused this, even though it most likely is, but this is the exact same problem as the rest are stating to have here.

End of the line, I just had to send it in for a check and possible repairs.

Hope any of this may help or give some clue to the others.
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Old August 14th, 2011, 02:16 PM   #25 (permalink)
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My problem starts again after few days

My daughter also purchased a galaxy s2 and I tried her battery and the temperature warning and problems with usb was gone.
Tried to change back to the old battery and the phone started up normally even with this battery. The problem recurred, however, later but was again fixed with her ​​battery. The only thing that will not be fixed is that the phone automatically starts directly when the battery is put in and you can not turn off the phone completely. It starts up automatically after it vibrated after shutdown.
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Old August 16th, 2011, 10:04 AM   #26 (permalink)
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Same problem here,

One day I put my phone to charge, and after a few minutes, i heard the USB connection noise, well, I didn't care about it.... but when I looked at the phone, i saw the screen was on, with a clock screensaver I've never seen before, then i find out that the phone was in Dock Station mode, I thought it might be a software bug, so I restarted the phone but then the phone was in MTP / charging mode (without any cable attached).

In MTP mode i couldn't do anything with the phone, it kept trying to sync.... after a few restarts, the phone was working again, but then i noticed that the phone was continually charging the battery (again without any cables), and the battery went from 100% to 15% in about 5 hours.

The next day I tried to turn the phone off, and i saw the temperature warning, and after trying to update, putting new rom, etc... I brought the phone to the shop, and they sent it to Samsung..... after 3 weeks the phone was back, with a new battery.... but when I came home, I putted the battery and the phone went on by it self, and after that, all my problems are back, the phone keeps charging it self, it keeps in MTP mode, I can't turn the phone off, because if I do, I get the battery temp. warning or it goes on again.

The Samsung service is very disappointing, i can't send my phone for another 3 weeks for reparation.... if they don't give me another new phone, I'll start a legal complaint against the phone shop and Samsung to get my money back, and i will buy another phone, no samsung for me anymore.
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Old August 19th, 2011, 04:02 AM   #27 (permalink)
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...Just had the same error on my few day old samsung galaxy s2.

It occurred after the phone shut down whilst running a prime number generator to max out the cpu (actually it maxed out one core of it I think, processor usage was reported at about 47%).

I was doing this to run out the last few percent of battery to properly condition it (run it out all the way and charge it to full a few times after purchase)

On plugging it in to a usb port, it displayed a battery temp. warning icon. I left it for about ten mins, pulled out the usb lead, removed the battery, put it back in after a minute or so and powered on the phone (with the usb lead out). As soon as the 'samgsung galaxy sII' logo began to fade, I plugged the usb lead back in.

No problems so far...
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Old August 19th, 2011, 02:48 PM   #28 (permalink)
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I set my S2 to charge and about 20 mins later i checked the battery level, and the back of the phone was very hot, 46c according to battery monitor widget pro, which i have had running since i bought my S2 , so i downloaded watchdog lite, and i found that webroot anti-virus was stuck using 48% of my cpu, and it was not a scan as that only takes a few second, it must have crashed or something, so i removed webroot and all is fine now.

So it could be an dodgy app stressing your cpu and causing it to overheat as you are charging your battery more heat giving you the battery warning.

So i will be leaving watchdog lite installed for now!
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Old August 19th, 2011, 03:53 PM   #29 (permalink)
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Quote:
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I set my S2 to charge and about 20 mins later i checked the battery level, and the back of the phone was very hot, 46c according to battery monitor widget pro, which i have had running since i bought my S2 , so i downloaded watchdog lite, and i found that webroot anti-virus was stuck using 48% of my cpu, and it was not a scan as that only takes a few second, it must have crashed or something, so i removed webroot and all is fine now.

So it could be an dodgy app stressing your cpu and causing it to overheat as you are charging your battery more heat giving you the battery warning.

So i will be leaving watchdog lite installed for now!
The Samsung widget AP News Mobile is another application that will hog CPU and cause EXCESSIVE battery usage and download traffic, even if not used! The only solution for this nasty app is use Titantium to freeze it. It cannot be un-installed on a rooted device!
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Old September 6th, 2011, 06:55 AM   #30 (permalink)
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Is there someone who as found a solution for this??

F.e. Does changing the battery fix the problem permanently?
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Old September 8th, 2011, 11:51 AM   #31 (permalink)
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Sad Battery temp warning

Hi everyone... I am facing same problem as mentioned above .. Please can anyone tell me the solution for this.. Should changing the battery solve this problem or its a hardware fault.. Plz reply and help me
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Old September 11th, 2011, 05:42 AM   #32 (permalink)
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Notsure Battery Change

I had the same problem. I took my phone to a Vodaphone store and they changed the battery. The phone started without any problems. I thought that phone was fixed. However the problem came back when I recharged the phone.

A few days later the problem had gone away on its own. The phone works ok at the moment.
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Old September 11th, 2011, 10:05 AM   #33 (permalink)
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I had this this morning - nearly *it myself at thought of phone being knackered.

MTP started off just repeatedly starting up and scanning mem card etc - just looping the MTP Initialising comment.

Then the battery temp came up and that really freaked me out - had me thinking KH3 firmware had done it.

Searched online and found comments saying that some apps have been known to cause the MTP thing after updating and clearing cache can help.
Only app updated literally 2 mins before this problem was QR reader which had installed itself to mem card.
Uninstalled this app and no more problems .

Don't know if it is conicidence or the cause of my problems but it's good now so I am sticking with it.
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Old September 11th, 2011, 05:38 PM   #34 (permalink)
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I've had this problem since yesterday, a few hours after I changed batteries (running in a spare). The new battery might just as well not be there - the phone is dead and plugging in the charger has no effect. The original battery, once inserted, causes the big battery icon/temperature warning most of the time. Occasionally it doesn't, but when I then start the phone the connection is odd (time and date, for example, don't update) and a single press on the side button turns the phone straight off rather than bring up the menu. We'll see what tomorrow brings.
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Old September 13th, 2011, 03:36 AM   #35 (permalink)
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Well I took the phone into the O2 shop yesterday. The tech guy played around a bit, eventually did a reset (I should have most stuff backed up) and the phone appeared to work normally. On switching off, however, we got the battery and temperature indicator. So O2 have sent the phone off to be repaired centrally, and I have a basic phone on loan in the meantime.
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Old September 16th, 2011, 02:54 PM   #36 (permalink)
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The phone seems to work normal, but when turned off battery warning with thermometer icon flashing.
My phone is also rooted.

One weird thing I'm also experiencing is I can't turn off USB debugging mode.
It says:USB is connected. Remove the cable.
Maybe you have the same problem and it's related?

BTW thanks for the workaround for starting the phone!

I'm curious what the causes may be...


3 have just contacted me and saying that it is water damage in the usb port with a 30 charge to get it fixed!! Water damage....no chance but we will see if it works on its return
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Old September 17th, 2011, 02:17 AM   #37 (permalink)
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My phone seems to have fixed it self.
I'm not rooted....had battery warning sunday, monday, tuesday and not had it since.
Strange!
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Old September 18th, 2011, 12:01 PM   #38 (permalink)
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Same problem here...
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Old September 19th, 2011, 11:03 AM   #39 (permalink)
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O2 had my Galaxy for just a couple of days, then returned it on Friday with a letter that said they'd found a fault (they didn't say what) which they had repaired. It seems to be working fine.
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Old September 25th, 2011, 10:08 PM   #40 (permalink)
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Experiencing the same symptoms, symbols of battery charging when "off" with no cables connected. Battery Temp fault on startup. MTP displayed when running.

Problem masked when external USB cable connected attached to PC.
Problem persists when external USB cable connected, no PC.

To me this can't be a software issue. I would guess that something in the USB interface is shorting or has gone open circuit?

I had unknowing connected left my device on charge overnight on my PC's USB3 port prior to this occurring, however this *should* have no effect.
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Old September 26th, 2011, 03:54 AM   #41 (permalink)
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I have noticed that the MTP things always starts when battery reaches 93% - nothing I can do to stop it, tried task manager killed all apps, cleared ram and rebooted - it just carries on waking up and initailising MTP every bloody day.

Eventually it just stops doing it by which time Battery is approx 80%.
I have no idea what is causing this or how to stop it.

Additional info -
Also noticed that when the MTP things starts messing up it resets the "time on battery" to zero.

I charged by wall last night, unplugged at 7am and just noticed time on battery is currently 9hr24m which ties up to when I had the MTP issue this morning.
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Old October 7th, 2011, 05:51 AM   #42 (permalink)
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Yes I had similar issue...
Phone stopped charging via charger, so tried new charger same issue then decided the USB connection may have been damaged when phone got pulled to floor by charger cable so sent off for new USB connector (5 ebay) in the mean time got new battery still not charging so got 3 new batteries + external charger all got just swap out batteries.

Got new USB port fitted all working again for 2 days then same as everyone flashing battery temp problem.

I have been able to get the phone working on occasions without knowing why
But now I think I know when why my one works on occasions....

When I reboot and hold down the Vol - then press Vol + the phone shows andriod pic and Downloading do not switch off target.......

at this point some times when I remove the battery and pop it back in it will boot,
The pattern is when the battery is about down to 12% it will boot up.....
So I think this is related to the power regulator or battery providing incorrect power.
My phone is straight now hacks or roots.
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Old October 7th, 2011, 06:00 AM   #43 (permalink)
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Just to remind that if anyone wants to do battery calibration, needs to be rooted.
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Old October 9th, 2011, 05:57 AM   #44 (permalink)
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Dropped my usb cable in the coffe, didnt dry it properly and then put it in my phone. Stupidly. After that i got the same prob as you guys
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Old October 20th, 2011, 06:04 AM   #45 (permalink)
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Hi
I have the same problem. It presented a weeks ago and then it went away.
But yesterday the phone got a little wet with some drops of water (and coincidentally, as far as I remember, was the same thing happened the first time) and now I have it again.

I think that there is an hardware issue in the Usb port: it's probably very delicate and just some humidity or water short circuit it and makes all the mess.

I can confirm that it's not a battery issue, because I tried with two different batteries. And I can confirm that you can't switch on or off the "Usb debugging" mode, and that's a clear indication of the USB hw problem.

I'm going to send to assistance today. Unfortunately.
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Old October 21st, 2011, 07:53 AM   #46 (permalink)
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I'm also getting the same problems on my phone, started happening about 1 week ago. Was on charge over night, the following morning driving to work I noticed the phone beeping as if going on charge. Following this I get all the same issues as above, including the battery overheat issue. When this happens I cant turn the phone back on unless it is on charge.

Couple of things I've noticed, I get a over voltage error when charging, the issues only occur when the battery is 60-100% charged, once it drops below this all is well.

I will be taking it back to the shop next week, moving back to my iphone while it gets sorted.
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Old October 21st, 2011, 02:00 PM   #47 (permalink)
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Exclamation Samsung Galaxy S2 Battery Heat Warning

I had used 23hrs of standby and my phone gave be that auditory bleep that I had a low battery. then turned off. I plugged it in and kept talking then after a few mins the call was hung up on and I got the termerature alarm.
I unplugged the phone the battery and let it cool.

After it was cool I plugged it all back in and recharged the phone and then was able to use it.

What happens when the phone has low battery the phone battery generates more heat to squeeze more talk time out of the battery. This generates more heat. The battery is not as efficient when the lower meter reads low.

Always use a headset, its healthier, and keep the phone plugged in for long calls. your battery will last longer and you will not get the temperature alarm.

Infact having a temperature alarm is brilliant because it means this phone is very sophisticated and know how to protect itself.

The battery cools off very quickly and you can use your phone again.
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Old October 21st, 2011, 04:49 PM   #48 (permalink)
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Quote:
Originally Posted by pogostick76 View Post
The battery cools off very quickly and you can use your phone again.
If only it was that simple for everyone.
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Old October 24th, 2011, 04:11 AM   #49 (permalink)
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Confused Galaxy S2 battery overheat problems and turning itself on

HI everyone, I also seem to have your problem too. I got my Galaxy S2 about 5 months ago. It was working fine but when i woke up whilst it was charging, it showed the battery temp. warning. I turned the phone on and checked using a battery monitor, it was showing normal temperature.
Then, at the end of the day when the battery bar was empty, I tried to charge it except the charging sound wouldn't sound and it wouldn't charge. I turned the phone off and it just turned itself back on. I tried to plug the computer USB cable in but it wouldn't charge or go into MTP mode.
I turned the phone off with the USB cable attached and it turned itself on, but now it charges... But when I unplug it, in the notification bar, it says USB host connector connected.
I heard something about warranty for the battery being 6 months. I'll just take it to o2.
Anyone any idea why?
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Old October 27th, 2011, 04:11 AM   #50 (permalink)
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I've got the same issue with mine. I think it started occurring after I updated the ROM on it without the battery being at 100%. But these are my symptoms;
Symptoms;

When switched off and without a USB lead connected the phone display alternates between a battery level indicator (as if charging) and a temperature warning.
Plug a USB lead in to get past this and boot the phone normally

When switched on and you've received a 100% charged notification, rebooting the phone and checking the battery level again, shows the battery hasn't charged to 100%.
I'm trying to force mine up to 100% by rebooting every time it stops charging to charge it a bit more. This might get it over the hurdle eventually...

With no lead plugged in, trying to disable USB debugging mode (settings>applications>development) gives the error: "USB is connected. Remove the cable"
I've got no fix for this yet, except maybe flashing a clean ROM onto the device with the debugging mode already disabled

Thanks to a previous post in this thread, I'm monitoring the battery with Battery Monitor Widget (https://market.android.com/details?id=ccc71.bmw&hl=en) and have noticed the battery level jump sporadically up or down as if there is some kind of hardware monitor that doesn't correspond with the firmware monitor??? maybe??? (clutching at straws)
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