Hi everyone,
I'm really hoping someone can help me.
I have a Samsung galaxy tab s2 8inch. It is the SM-T710.
It was working fine playing music on a Bluetooth speaker system then the battery died.
Tried to charge it and it was acting funny, said it was charging then got to one or two percent and i attempted to power on while the device is on charge and it powered on then turned off within a few seconds.
Let the tablet charge for a while now and its not really going up and the screen has gone off and its not turning on and i now notice its getting really hot at the bottom part of the screen slightly above the home button.
Removed the charger and left it for one hour, then came back and tried with a different new genuine Samsung charger and cable, and still getting extremely hot within a few 5 - 10 seconds just above the home button.
Unplugged it and left it till the next day and attempted to charge it again same thing.
I though it could be either: A faulty battery or A faulty Micro USB charging port flex (possibly short circuiting).
Now Ive opened up the whole device and taken apart every item on the mother board following a tear down video on YouTube.
I then connected a brand new genuine battery to the board and removed the old one, and the device was still overheating however this time i could pin point the exact source of heat on the motherboard which i will circle on an image but cant attach to this post as i need ten posts.
The images are on my public google drive but i cannot share the links here any ideas?
I then thought the micro USB charging port flex is causing a short circuit and so i completely disconnected that and the overheating problem still occurred.
Then i disconnected each and every component one by one and still the same thing on the motherboard keeps overheating excessively within seconds of connecting the battery to the motherboard.
Now Ive completely removed the motherboard from the frame and Ive connected the battery to it and same overheating issue.
Now Ive reconnected just the micro USB charging port back to the motherboard and attempted to plug a charging cable into the port and exactly the same thing still overheating excessively.
I really do not want to replace my motherboard simply because of the data on the device etc.
Can someone please tell me what the red circled item is in my image so i know what is overheating!
Could it be the CPU?
Is there ANY other way to replace JUST that part, even in china? Can anyone advise or help me?
Many thanks to the people who patiently read this and helped.
Kaiser
London, UK
+1
I guess the motherboard got corrupted
First off, do not boot up an almost empty device. Second, it is entirely normal that the bottom area (charging port, home button etc) gets hot while charging. It will fade after the battery got some essential energy. Third, do not deplete the battery completely, if possible. In the long run it may damage the longevity of the battery.
Was there ever a solution to this issue? I'm having the same problem.
Related
hi, new member here.
bought my tilt on 10/4/07. has been flawless since that time.
used the nav quite a bit during a road trip, used a cig lighter usb charger.
got home and my battery was at roughly 40%.
put it on the charger at night went to sleep. in morning disconnected it at 8 am. shortly after i arrived at work i got the critical battery low chime. checked and it had like 7% battery life.
figured i didnt plug it in right, or it got knocked loose some how and didnt get charged.
put it in flight mode to minimize battery usage. left work at 2 30 pm (4% battery life) and put it on the car charger. got home and put it on the HTC supplied wall charger. light turned amber, so i assumed it was charging.
checked an hour later and turned phone on, it said 0%, and immediately died. left it on the charger for a few hours and the light was still amber, turned it back on and again 0% and phone immediately died and did a soft reset on its own. i turned the phone off and left it on the ac charger, took out the sim card and put it in an old blackberry to use while the battery was charging.
its been on the ac wall charger for the last several hours, i checked and the phone is totally dead, cannot turn it on, and the LED at the top is now RED.
what is the problem here? why wont this thing charge?
thanks in advance, i have alot of critical info on this device and any help would be greatly appreciated.
i cannot hard reset because i cannot turn the flippign thing on....
Does it charge when you connect it to your computer? If it does, then your charger is toast. If not, then it's probably the phone itself.
I'd try a different charger first. If that makes no difference then a different battery. If that still does not make any difference then time to exchange it.
Lidberg said:
Does it charge when you connect it to your computer? If it does, then your charger is toast. If not, then it's probably the phone itself.
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Click to collapse
connected to either the computer or the wall charger, the LED thats normally amber when charging, and green when charged, remains red.
I had something very similar happen to my wizard.
And as weird as it sounds, the only fix was to charge the battery in a friends wizard on his charger. I'd check the battery if possible.
Could be the battery. Know any place or anyone that will let you try a charged battery? If not, you might have to go in to an AT&T store.
i think i got it working. did some reading/browsing...
took a usb wire and cut the mini usb head off. dissected it and found the the red and black charging wires. took out the battery and held the leads to teh battery while the other end was plugged into a USB/AC adapter wall charger from a old blackberry. after manually charging the battery for several minutes, i put the battery back in the phone and the phone started up. now it seems to be charging off the wall charger and the led is now amber from red.
thanks for all your help/suggestions.
well it worked briefly. the amber light has gone back to red and it seems that the battery is not charging.
dont know what happened to my perfectly functioning phone.
tiltyoself said:
well it worked briefly. the amber light has gone back to red and it seems that the battery is not charging.
dont know what happened to my perfectly functioning phone.
Click to expand...
Click to collapse
Repeat this proceedure but this time do not turn the phone on, just plug it in to the wall charger once you have zapped the battery again.
Turning your phone on probably just caused the already recovering battery to die whiles it is trying to take on a charge.
It is mentioned quite a lot on the boards that Li-Ion Batteries do not like being over disscharged and there is usually a little protection circuit in the battery to provent complete disscharging although this circuit may be on board the phone. Completely disscharging a Li-Ion cell will kill it stone dead and it will need replacing.
When you took the battery out and so called jump started it with your flying leads, this possibly reset the little protection circuit in the battery so it can now take on a charge. I feel that once you turned on the phone, this was to much for the already depleted cell to take and possibly re-tripped its inbuilt circuit.
If you do manage to recover you cell, in future it is good practice not to let the battery go below about 25%. Li-ion cells are generally happy being top off regularly.
I hope this helps buddy
Do let us know!
Cheers
C.
thanks, that was very helpful.
ive tried defibrillating this battery out of the dead several more times to no avail.
ill try it one more time when i get home from work, if its a no go i will go to teh att core store. the phone is 6 weeks old, dont know what they can do for me if the battery is toast...
That Sucks! I hope they'll give you a new battery.
tiltyoself said:
thanks, that was very helpful.
ive tried defibrillating this battery out of the dead several more times to no avail.
ill try it one more time when i get home from work, if its a no go i will go to teh att core store. the phone is 6 weeks old, dont know what they can do for me if the battery is toast...
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Click to collapse
I had exactly the same problem with my battery. It came on though after a day. Although the battery life after this happened went down to 10hrs max on standby. I sent the phone back and got a new one and now all is fine.
This is a problem that affects almost all makes of phone. There are three (main) causes of the problem:
1.
The battery charge drops too low to allow the charging circuit to recognise a battery is even in place (red no charge light stays lit)
possible solution:
http://forum.xda-developers.com/show...22&postcount=6
(in the end very similar in the end to the USB wire used in post above)
2.
A faulty battery (but if you can charge it using a cut usb cable or using a couple of AA batteries this may not be a faulty battery.
3.
A faulty charger OR a charger not delivering 5v at 1000mA as the OEM one does. Many chargers that are used for other phones or generic chargers only deliver 500mA. This is not enough when your battery drops very low. (these chargers are OK for occasional use but I do not advise using them regularly particularly if the no-charge syndrome has shown itself)
4.
A faulty USB connection on the phone. I have now seen a couple of reports where the fine wire connections in the phones USB port have become bent out of place.
Number 4 above is at least possible for the OP as it seems the battery will charge using a cut USB cable but not when either the PC USB cable or mains charger is connected. A USB port on the phone with a a bent internal contact would explain what's happening.
A previous poster was able with a needle or similar to bend the contact back into place.
Mike
i had the same problem with my phone.
put it in the charger overnight and woke up in the morning and couldnt turn on the phone with blinking red light. I don't know if my battery was over-drained though. I went to AT&T and was playing around with their charger and new battery and somehow the so-called dead battery started working again. They changed the SIM card on my phone there and then i haven't been able to use the phone since. I've changed the network to GSM instead of Auto setting under Phone Options which allows us to make calls; but now I can't connect to 3G network.
Charging thru mini usb
My phone started to exhibit similar problems...plugged in but no charging of the battery. I finally realized that my mini usb connection on the phone has been compromised (bent, distorted=not functioning properly) Now I have to prop the mini usb connection up at a slight angle to engage the charge. I think the plastic/metallic connector on the phone is somewhat fragile ...I had similar issues with my hermes.
called customer support.
they are sending me a new phone and battery.
how do i know its not a refurbished one? any clues?
before u send out your defect phone, have u check if your phone's mini-USB connector has bent or misaligned pins?
yeah all the connectors visually are fine.
Hi,
First off, I have a non rooted, stock Galaxy note. It's not modded in any way.
The problem started occurring yesterday, all was just fine before. Since then, it won't charge no matter what USB cable or charger I use.
1) Phone on
- I plug the charger to the phone : nothing. The phone doesn't register being connected to the OEM wall-charger.
- I connect the phone using the OEM USB cable to my computer (tryed 3 different computers) : Nothing.
I also tried another charger and several USB cables : no luck.
2) Phone off
- I plug the charger / I connect my phone to a computer using USB cable : the phone boot up and doesn't charge the battery.
Any thought ?
Thx in advance.
Try using some compressed air to clean out the usb port on the Galaxy Note. I had a similar issue with an iPhone once and there ended up being a piece of lint stuck on 1 of the contacts which made it unable to charge. Could be the case with your phone. Other than that contact Samsung and see what they can do for you.
Thx for the advice.
I'll try that out and call over Samsung.
Try factory reset if that could help..
Sent from my GT-N7000 using XDA App
Update:
I tried a micro USB Host Cable (OTG Cable) and it's working fine : recognized and plugged in USB stick is working fine.
Also, I tried a factory reset after backuping my data. All went fine but sadly the problem is still there : no charging.
More update:
After two days, It started working again as if it never happened.
Still wondering what might have caused it
Might be the dust that settled on the battery pins and the contacts on your phone.. happens some times .. glad its back to work.. poor thing..
Amande said:
More update:
After two days, It started working again as if it never happened.
Still wondering what might have caused it
Click to expand...
Click to collapse
Happened to me too! It wouldn't charge until I turned off the phone. It worked after I cleaned the phone and usb cable's metal parts--sorry no correct jargon for this--with rubbing alcohol. Make sure there's no lint left from the cleaning.
Yup, had this. On charge with stock charger in the mains. Battery dropping fast, back (top) getting warm. I turned the screen off, left it for 5 mins. Looked again, it was 2% less!
Reboot fixed it.
There did not seem to be any rogue program using the CPU, but I now have a meter and a better logger to examine this if it occurs again. I assume the system got into a loop somewhere, although the phone was normally responsive.
holgalee said:
Happened to me too! It wouldn't charge until I turned off the phone. It worked after I cleaned the phone and usb cable's metal parts--sorry no correct jargon for this--with rubbing alcohol. Make sure there's no lint left from the cleaning.
Click to expand...
Click to collapse
Happening to my phone as well right now. I was worried that the battery is dying so I got a spare online. But it doesn't make sense that its charging and know that it is on one state and not the other.
I panicked so I replaced Rocket Rom with Cassie's. It's still doing this.
Have you guys checked if there is a weird smell from your battery? I thought that was something to look at but dont all batteries smell like that?
galaxy note is experiencing the same hardware problems as galaxy s2 phones. I am very pissed off at samsung. I bought a new galaxy note in dominican republic and after one month of delicate use the phone developed charging problems. Drive mode would start automatically or the phone would shut off all by itself and a battery removal reset would turn the phone on again. then finally, the phone would stay in charging mode even after the usb charge cable is removed. the phone would discharge quickly and then would not turn on. I finally gave the phone to repair dept at claro phone company. they would not fix it and are just showing me a middle finger. Now I guess, I would have to learn to change the charging port myself. After seeing galaxy s2 videos, I see many ribbon contacts would get corroded and need to be cleaned frequently. Many phones were just less than 2 months old and had so much corrosion on the contacts. this is bad design and I think the high current draw for a dual core phone of that huge screen size is causing all kinds of electrical corrosion on the contacts inside the phone. this sucks majorly as I loved the phone when I had it working fine. Now I think I have bought a problem with my saved cash. I will try to repair my own phone soon as I get it back from the repair dept.
My Galaxy Note is doing a similar thing. Not all the same symptoms, but a few similarities.
The other night, when the charger was plugged in the phone kept changing it's mind whether it was plugged in or not - probably every few seconds I was getting the chime it makes when you plug the phone in. I eventually managed to charge the phone by turning it off, removing the battery, replacing it, plugging the charger in, waiting for it to start charging, then turning it on.
Today my phone was trying to tell me it was charging when it wasn't even plugged in to anything!
As with the above post, my phone has been getting hot occasionally and the drive mode has started by itself a few times.
I've used three chargers and four cables.
I'll be taking it along to where I bought it from later on today.
Battery not charging
G Note Battery is not charging .. same problem as of 1st post.
Changed usb cables, chargers, thru PC, laptop, direct wall, cleaning etc
Every thing fails. one month old set ?
OMG, glad to know I'm not the only one. Bought a Galaxy Note from a brazilian network provider (VIVO) and after 1 week of usage I'm experiencing the same problems as you guys.
My phone will only charge when it is powered off and USB connection does not work anymore (even in download mode). Before the problem onset, I noticed some MTP connection and SD Card rescanning without connecting to the PC.
Did a factory reset and got no results. Downloaded Odin Mobile and flashed stock rom and the problem persists.
Has anyone found a fix or the cause for this?
Thanks!
Missing my old Galaxy S...
Strange! After a full night charge, now I can unplug and plug the battery and continue charging from where I stop without turning it off.
I can now get beeps when connecting to PC. It show MTP-Inicialization in the Note screen but I have no access to to Note partitions in Windoes Explorer.
Update: One more strange thing just happened now.
Went to college and left it charging. When I came back at night, tried to connect the Note to the PC and everything is working ok now.
What?!?! Now I'm confused. How can I send it to warranty now? I think I'll have to wait a couple more days.
issue as well
That is my 3rd galaxy note, first one screen cracked, second dont ask me why it was not modified at all but it was so sluggish and froxze all the time, my 3rd one it is rooted device and i have similar issue...I am thinking is it because i was charging it from my wife's htc one phone? I thought they would have the same pins...anyway it is doomed, i tried so many chargers and problem not solved
ok i can comfirm to everyone that i have fixed the problem by buying contact cleaner spray and sprayed inside the usb and beautiful all back to normal!
Nooo..
Have a charging problem as well :/ It detects the charging cable and shows the battery icon with the circle about to charge. But it just turns off before it starts charging, turns on shows the icon again, turns off, turns on, shows the battery icon and so on. I have tried with two different chargers. For me i looks like the voltage is too low? Maybe the battery needs a jumpstart? I'll just leave it in the charger and see what happens. Suggestions welcome
Edit: It's just two weeks old, damn it. Last night I used it untill the battery was empty. That is why I think the voltage is so low it doesnt accept charge.
Edit2: Fixed! Puh! I was right. Battery needed a higher mah to start the charging. Leaving the post as it is for future reference.
same problem here, however it charges from my laptop... how strange?
My replacement battery (looks the exact same, may be a generic product, though) worked fine for a few days, but then the phone started saying: "Battery can't charge right now," and the batter level just stayed the same with the cable connected. I tried various cables and adapters; the situation didn't change. I read that maybe a missing temperature sensor could be the issue. Does anybody have experience related to the issue?
rex_vitis said:
My replacement battery (looks the exact same, may be a generic product, though) worked fine for a few days, but then the phone started saying: "Battery can't charge right now," and the batter level just stayed the same with the cable connected. I tried various cables and adapters; the situation didn't change. I read that maybe a missing temperature sensor could be the issue. Does anybody have experience related to the issue?
Click to expand...
Click to collapse
Same trouble here! Did you solve it?
Luis Augustus said:
Same trouble here! Did you solve it?
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Click to collapse
Battery and rom are probably not the problem, i've solved this with replacement of USB C charging port in the phone.
I repeated the process with the same battery, and I haven't had problems in over a year. just took it out, put it back in, and that settled it.
why you replaced the battery, battery dead ?
what are the symptoms ?
because my phone is restarting itself , while charging it shows 90 percent and so on, its on when charger plugged in and if unplug it will stay on for few min and if i open app or camera it start reboot
I've had the same problem
I've replaced battery with an aliexpress one but after some charges problem came back and I think the problem was about I was charging my phone with the wrong charger (was using the Aukey QC3.0), so I've started to charge my phone only with the genuine charger but with another USB-C cable because the genuine one sucks.
After using the genuine charger the problem never came back and I left the genuine battery on It.
I've noticed that the USB-C port on my phone miss the original standard measures of height and width of the hole, so when I plug the cable It plays a little in the port and this is the cause I don't use the genuine cable.
Guy guys guys...
The answer is simple ^^ (ok not really )
Clean your USB C charging port of your phone... that fixed 3 to 4 times my charging issues, sadly after I had bought several cables /batteries...
So first think you must do before checking any other thing... is getting all the crap that the USB C charging entry point has after so many years/months of usage... it gets quite dirty.
Hi,
I was using my phone until my battery completely died then when I finally plugged it was so low that it couldn't turn on so it kept restarting
for infinity amount of times, then it got even worse now it doesn't even do that it just show some battery icon with red color as low and some plug in the center of it that keeps flashing for couple of seconds and turn on and keeps repeating if I plug it in or press power button but no matter for how long I'll leave it plugged nothing will happen...
Any possible fix, thanks in advance.
P.S. It's such a BS tbh if it was so low why would it automatically try to switch on instead of waiting some time allowing the battery to charge at least 5%...
Same problem!
F-L-Y-E-R said:
Hi,
I was using my phone until my battery completely died then when I finally plugged it was so low that it couldn't turn on so it kept restarting
for infinity amount of times, then it got even worse now it doesn't even do that it just show some battery icon with red color as low and some plug in the center of it that keeps flashing for couple of seconds and turn on and keeps repeating if I plug it in or press power button but no matter for how long I'll leave it plugged nothing will happen...
Any possible fix, thanks in advance.
P.S. It's such a BS tbh if it was so low why would it automatically try to switch on instead of waiting some time allowing the battery to charge at least 5%...
Click to expand...
Click to collapse
Hey, F-L-Y-E-R, I have the same problem here.. Have you figured out what's the problem? Thank you for your help!
gigonjic.gigic said:
Hey, F-L-Y-E-R, I have the same problem here.. Have you figured out what's the problem? Thank you for your help!
Click to expand...
Click to collapse
Hi, I did. In my case it's faulty charging port (I don't know what happened to it) but it's still possible to charge the phone if you insert the cable the right way.
I randomly fixed it by trying to plug/unplug the cable and at some point that battery with the flashing plug changed color to green disappeared and became standard white battery which shows charging progress so basically you can live with that as it's only tricky when the battery is too low as long as you always keep the phone charged and don't let it die but I still wake up sometimes in the morning with my battery on the same % so it's not a permanent fix you will probably need to change the port... Even though by searching the internet people say it's related to the battery not properly being connected i.e. has lose contacts etc.
P.S. I use original charging cable, I thought the cable might be broken so bought an expensive one from Amazon but for some reason it doesn't work.
F-L-Y-E-R said:
Hi, I did. In my case it's faulty charging port (I don't know what happened to it) but it's still possible to charge the phone if you insert the cable the right way.
I randomly fixed it by trying to plug/unplug the cable and at some point that battery with the flashing plug changed color to green disappeared and became standard white battery which shows charging progress so basically you can live with that as it's only tricky when the battery is too low as long as you always keep the phone charged and don't let it die but I still wake up sometimes in the morning with my battery on the same % so it's not a permanent fix you will probably need to change the port... Even though by searching the internet people say it's related to the battery not properly being connected i.e. has lose contacts etc.
P.S. I use original charging cable, I thought the cable might be broken so bought an expensive one from Amazon but for some reason it doesn't work.
Click to expand...
Click to collapse
My brother's nokia 8 has this problem, too. One side of usb-c charges well (c > 2 Amperes), other side doesn't (c < 0.1 A). No problem on the cable, because it works well with my phone. I tried to clean the usb socket with alcohol and soft paper but no result.
Try a higher power charger
Dr. Slump said:
My brother's nokia 8 has this problem, too. One side of usb-c charges well (c > 2 Amperes), other side doesn't (c < 0.1 A). No problem on the cable, because it works well with my phone. I tried to clean the usb socket with alcohol and soft paper but no result.
Click to expand...
Click to collapse
My phone had this same issue and the work around was just getting a strong Note 8 Original charger, I connected it to the Nokia 8 and gave it some time and boom, All is well. weaker chargers no longer charge and will spoil your phone just get a strong charger
Hi guys,
I had to change both display incl. frame and battery because a barbell fell on my Mi9. This bent the phone at the place of the battery and completely destroyed the display.
I was able to repair the phone quickly, but unfortunatly I did not glue the new battery. Now I was mountain biking and due to the vibrations the battery was torn from the mainboard and parts of the battery cable got stuck in the connector. I had these parts removed carefully by a watchmaker and he assured me that the connerctor looks undamaged.
But now I have the problem that the phone won't start when I insert the old (minimally) bent battery. It does not respond to any input. Only when I charge it, the LED is blinking slowly and the MI Start logo appears for 1/4 second. This process is repeated continuously. The battery also warms up slightly, showing me that it is being charged and that the connection is basically established.
Can you detect a defect on the board by this error description or is this a "typical" battery problem? Or does this error description look familiar to you otherwise?
Thanks for all suggestions,
Mike
Well I'd say that will be a hard problem to diagnose without knowing what to look for, and I definitely don't know but what I'd suggest so you can rule out the battery problem is to try a different battery in the phone and see if you get the same response. If it works happy days problem solved. If not it is more than likely a main board problem or charging connector.