Develop Bugs

Empty DHD not charging, not powering on, no led.

Hello people
A couple of hours ago, my phone shut down due to empty battery. I came home, plugged it in and booted it, all was fine. At about 60% I shut it off and went to have lunch, when I came back and tried to turn it on, I couldn't.
Led was orange at the time, I unplugged the power cord but the led stayed on! I removed the battery to be able to reboot it, but when I re-inserted it I still wouldn't boot.
Now no matter how I try to charge it, led stays off like it's not charging. Tried various different cables/chargers, the same. Tried to plug it to the charger without battery but no led flashed. Tried to boot without sim/sd card, still the same.
Any ideas?
My battery has never been changed (for a year now) and has had a bunch of full drains. Could this be a dead battery? :/

Well seems the phone is fried... I tried two more official batteries and no go...

Sorry to hear it. I thought that at first when I read your thread but I thought because I am not the most experienced person here, there might be some kind of fix.
HTC will most likely if not certainly replace this handset for you, seeing as it just happened out of the blue.

Well I certainly hope so, problem is I suspect it's an import (from another European country) and local HTC service generally does not do well with European imports.
Anyway I'll give it a try, meanwhile I'm getting a sensation soon

I have a similar problem.
I'm lucky that my girlfriend has the same handset as I do, the I could compare the phone abnormal behavior tho that of her properly working phone.
The first thing I've noticed, after a while when the charger was attached, was that the phone is very hot and that the battery keeps draining out in a surprisingly high rate.
After a while I've noticed that even when the phone is turned off it wont recharge. Sometimes the Orange LED is on when recharging while it is off, and the LED stays on for a few seconds after removing the charger, as if it was still charging. Note that the affects of connecting the charger to the phone, are mainly the ones listed below (not necessarily altogether)
* The phone indicates as if it recharges.
* Going to an infinite loop of rebooting and crashing.
* Getting hot when power supply is plugged, or at any time when the phone is turned on.
Ultimately the battery was empty, and the only way I had to keep using the phone (mostly to diagnose the symptoms listed here) was to swap the battery with the one of my girlfriend's device, and charge my battery in her device while using her's. That's the place to mention that the battery works just fine and that the phone is draining any battery, no matter what.
I took it apart to have a closer look at the source of all of the heat emitted while the phone is turned on, and it seem to come from the motherboard itself.
That's all I have.
The worst thing is that a friend of mine who helped me opening it up broke the pcb of the volume keys. Now I checked and It turns out that that pcb is actually part of the flex cable, which sort of extension of the motherboard and is mainly the second most important piece of hardware of all the phone parts (not that there are so many). If I would be able to expose the conductors inside the flat cable I might be able to solder an alternative volume pad I'll make out of old some miniature switches I have. The cable is very thin. any Ideas of how to expose the relevant conductors without ripping the cable apart?

Just a (late) update:
It's been almost two years, I had given the phone to a close friend of mine after a couple of weeks since writing the first post, just in case he could resurrect it, nothing.
Then, a couple of months down the road, the phone suddenly woke up! He tried to connect it with the charger, after months of not being able to charge or boot it up and somehow it worked. And it has been working flawlessly ever since.
I just got it back to give to my girlfriend until her sensation is fixed, flashing Viper now
In case something like this happens to any of you, don't give up!

[Q] Galaxy Nexus Charging Problem Backlight Keeps Coming On

I am REALLY unhappy with this phone. Aside from the poor signal and other issues well known to the Nexus, I now have a phone that has a charging problem. Sometimes when I plug the phone in, it does not recognize that it is plugged in and will not charge. This is not an issue in itself, because if I unplug and plug back in a few times it will eventually charge. The big problem is when it is NOT plugged in. The phone will often switch between charging and not charging on the battery indicator.... even though it is NOT plugged in.
I read up on this and found that... shocker.. this is just one more issue plaguing Nexus owners. The real problem for me is that everytime the phone switches from thinking it is charging to not charging, about every two seconds mostly, the screen comes on. This results in the screen constantly going on an off and the battery draining extremely fast. It is 8:17 am, and I unplugged the phone at 6:40 this morning. In less than an hour and a half, the battery has fallen to 38% and I have not used the phone at all today. It is sitting on my desk, flashing like a disco club.
I have searched but have only found an option to keep the phone ON while charging. Is there an option or app available that will prevent the screen from lighting everytime it thinks I have plugged it in to charge? I am rooted, so any option known would be helpful.
I cannot wait to throw this thing in the garbage, but I am not happy with any of the other options currently available. I like the look of the Galaxy S3 but the Gnex has left a bad taste in my mouth for Samsung... it was my first Samsung phone and I'm not sure if I should judge the product line on all the problems I have had with this phone. I loved the HTC Incredible it just got a little old.
Can anyone help me with this problem... please! It is now at 30% since I typed the last few lines. I can sit and watch this thing draining like a bathtub.
Jim

try changing the usb port on the phone
http://www.ifixit.com/Guide/Repairi...zon-LTE-Micro-USB-Charge-Port-Main-Mic/9641/1

I had this issue caused by water damage quite recently - it was in my pocket during some absolutely unprecedented rain here in the UK, and although it seemed I could charge it without problems, when it was off the charger it'd be confused and flash on and off as you say. I just threw it in some rice and took it out at midnight, problem solved (whether the rice was actually responsible for solving it, I have no idea). Has your phone been used in the rain or anything like that, or been in the pocket of clothes that aren't very 'rainproof' during rain? Could be it.

Is it the charger? I had a bad car charger that did the same thing. If not, I would contact Samsung and see what they can do for you.
Sent from my GSM Galaxy Nexus using Tapatalk 2

I read about the water damage being a possible culprit but I cannot remember it getting wet anytime recently. It is not the charger, it does the same thing with two different chargers and the car charger. It does actually charge, thats not the problem. The problem is when I am away from the charger the screen just comes on all the time and the battery is drained rapidly. It has been having issues for a week or two now but just recently started having the problem when not actually plugged in.
Someone just needs to make an app with an option NOT to turn on the touchscreen when first plugged in.
Jim

calaski8123 said:
I read about the water damage being a possible culprit but I cannot remember it getting wet anytime recently. It is not the charger, it does the same thing with two different chargers and the car charger. It does actually charge, thats not the problem. The problem is when I am away from the charger the screen just comes on all the time and the battery is drained rapidly. It has been having issues for a week or two now but just recently started having the problem when not actually plugged in.
Someone just needs to make an app with an option NOT to turn on the touchscreen when first plugged in.
Jim
Click to expand...
Click to collapse
Have you been able to fix your issue? I've had zero issues with my Galaxy Nexus for months, and now I'm having the same problem you describe. Initially I thought it was the ROM, but last Sunday I noticed that the phone will simply not sleep without being charged. The USB port appeared to be bent downward, so I used a tiny flat head screwdriver to raise the port. This seemed to fix the issue for a few minutes, but then the phone kept waking up. It's murdering my battery, and I'd like to fix this situation. The problem seems to be intermittent, and occasionally it will work for hours at a time. This leads me to believe that the problem could be internal.
I'm wondering if you tried anything else? I don't have a problem replacing the USB port myself because it seems like an easy and cheap fix. I'm not a novice when it comes to repairing phones, but I'd rather not open the device quite yet.
The new part is $8.00 shipped, and the seller is in the US. You can't go wrong. I will report back once I fix the problem.

Not really, the problem just sort of went away a week ago... I'm getting the Galaxy S3 end of October so I'm not going to replace the USB port. I messed around with the usb thing too, bent it with a knife so it wasnt touching anything. I also tried cleaning the contacts and blowing it out with air... not sure if any of these things helped or not. Like I said if I made it worse didnt matter as I'm getting GS3 soon. So for now its working but not sure why or how or how long...
Jim

calaski8123 said:
I am REALLY unhappy with this phone. Aside from the poor signal and other issues well known to the Nexus, I now have a phone that has a charging problem. Sometimes when I plug the phone in, it does not recognize that it is plugged in and will not charge. This is not an issue in itself, because if I unplug and plug back in a few times it will eventually charge. The big problem is when it is NOT plugged in. The phone will often switch between charging and not charging on the battery indicator.... even though it is NOT plugged in.
I read up on this and found that... shocker.. this is just one more issue plaguing Nexus owners. The real problem for me is that everytime the phone switches from thinking it is charging to not charging, about every two seconds mostly, the screen comes on. This results in the screen constantly going on an off and the battery draining extremely fast. It is 8:17 am, and I unplugged the phone at 6:40 this morning. In less than an hour and a half, the battery has fallen to 38% and I have not used the phone at all today. It is sitting on my desk, flashing like a disco club.
I have searched but have only found an option to keep the phone ON while charging. Is there an option or app available that will prevent the screen from lighting everytime it thinks I have plugged it in to charge? I am rooted, so any option known would be helpful.
I cannot wait to throw this thing in the garbage, but I am not happy with any of the other options currently available. I like the look of the Galaxy S3 but the Gnex has left a bad taste in my mouth for Samsung... it was my first Samsung phone and I'm not sure if I should judge the product line on all the problems I have had with this phone. I loved the HTC Incredible it just got a little old.
Can anyone help me with this problem... please! It is now at 30% since I typed the last few lines. I can sit and watch this thing draining like a bathtub.
Jim
Click to expand...
Click to collapse
I've got the exact same issues, it's ruining my battery life. Has anyone found a fix for this yet?

Its a physical problem. You need to replace the charging port, or get new phone like me.

calaski8123 said:
Its a physical problem. You need to replace the charging port, or get new phone like me.
Click to expand...
Click to collapse
@calaski8123 -> how would I replace the charging port? Should I contact samsung/google?? I have the exact same issue being discussed here and its driving me nuts. And I got this phone just a couple months ago so getting a new phone is not a solution...
best,
-Nripesh

If its new I'd take it back under warranty. If not, you can buy the parts on ebay and other sites... Search the Forums here, there are details. You can also search Youtube for a guide. Samsung probably would fix but it would cost much more.
Mine is better, but not sure what fixed it. The battery still doesn't last but half a day so I'm still getting the S3 in week or so.
Jim

Gnex Charging Issue
Hi all! Yes, I am another one of the unfortunate owners of a Gnex with this issue. I wanted to send out a reply to everyone that says to replace the USB charging port. I just had mine replaced, and it did not fix the problem. I have also tried different batteries, and I have read where some people are fixing this by *** gently *** bending the USB connector up ( toward the screen ). That also did not fix my problem. A few days ago I installed AOKP 4.2.1, and that was ineffective as well. I am stumped. My Samsung Fascinate was a very good phone, but the Gnex is really making me wonder if I ever want another Samsung. Has anyone found a solution for this? Unfortunately for me, I bought mine used and don't have the option of returning to Verizon for help. Thanks!

Galaxy Nexus Won't Charge

Hey Guys,
Over the last year or so I've had intermittent charging issues with my Galaxy Nexus. About 4 months ago is when it first started happening, the phone would either not charge or only charge when it is turned off. Somehow the issue was resolved through tons of troubleshooting, I'm not even sure what fixed it or why it started working again.
Same thing happened about 2 weeks ago, except this time it won't charge at all. Then 2 days later all of a sudden started charging again. Now it's happening again today, I have no idea what is going on or why this handset won't charge properly. The phone won't turn on with just the charger in and the battery out either.
I've tried various chargers including the OEM charger, I've tried up to 6 different chargers and 7 seperate micro-USB B cords. Nothing. I've tried a brand new battery that a friend bought for his phone before he threw it in and no results.
At this point I think it's the USB charger board, however I'm not sure why it would not work and then work again. Does anyone have any ideas or any solutions? I've read thousands of threads on this, from this forum and many others and have gone through some ridiculous troubleshooting methods.
SCH-I515 Korean Version.
Seriously, anyhelp is appreciated.

As of now, all of a sudden it will charge while it's off. But only to about 4% then it just stops charging. It will not charge while it is on at all.

Because it's getting worse and worse?
Relock bootloader, and return it in for warranty, if you can. I'm afraid there's not much help if you already checked for damage to the USB port.
sent from my Google Galaxy Nexus

hi
had the same problem until a few minutes ago.
received my usb/charging flex part today and changed it just before to post here.
took me like 20 min, really easy to do, everything works perfectly and i also took time to clean up a bit the phone inside of some dirts and change the housing i bought with the flex part.
As my screen is under protection since the beginning (4 months old), and that i recently bought a 2000mah battery, well i have to say that i have a new phone ready to handle the new year easily!
operation is easy and you will find plenty of videos on youtube showing how to change the usb flex (7€/$ , +/-) so pretty cheap.
Good luck

Why not buy an external battery charger and a spare battery?
Sent from my Galaxy Nexus using xda app-developers app

I'd get a replacement daughterboard and switch it out yourself. It's easy dude, just like a previous poster already said. I just did it myself, took me all of 20 minutes and cost me $10. ifixit.com has a step by step direction sheet, if you have any questions feel free to contact me about it.

Try the following:
1.) Turn off your phone.
2.) Get a flat head screwdriver (small one)
3.) Push the flat connector inside the microusb port up. (It often gets bent downwards because it's so thin compared to other phones...)
4.) Boot into the bootloader
5.) Hit volume down until restart bootloader appears. Press power button.
6.) Start phone manually.

farshad525hou said:
Try the following:
1.) Turn off your phone.
2.) Get a flat head screwdriver (small one)
3.) Push the flat connector inside the microusb port up. (It often gets bent downwards because it's so thin compared to other phones...)
4.) Boot into the bootloader
5.) Hit volume down until restart bootloader appears. Press power button.
6.) Start phone manually.
Click to expand...
Click to collapse
i dont know why, but this fixed it for me, for a short while. now the charging is intermittent and seems to come and go as it pleases.

Hi,
I had the same problem of ghost charging, it started with phone not charging when connected to charger and then randomly showing charging...
Now discovered it causes vbus_tuna_otg wake lock, resulting in high system usage in settings> battery and not letting phone go to deep sleep, causing battery drain.
Sent from my Galaxy Nexus using Tapatalk 2

Same Problem
I've come into the same problem with my Galaxy Nexus as well. If my phone is turned on, my phone will recognize that a charger is plugged in but the battery will not charge at all. If the phone is off and plugged in, the charging screen won't appear. I've tried multiple chargers and cords, 2 different batteries, and even replaced the micro usb and board, but the problem hasn't changed at all. I've managed to charge my batteries with an external charger but would like to get my phone back to normal working condition. Does anyone think that changing the actual motherboard itself might solve the problem?

Sayword said:
I've come into the same problem with my Galaxy Nexus as well. If my phone is turned on, my phone will recognize that a charger is plugged in but the battery will not charge at all. If the phone is off and plugged in, the charging screen won't appear. I've tried multiple chargers and cords, 2 different batteries, and even replaced the micro usb and board, but the problem hasn't changed at all. I've managed to charge my batteries with an external charger but would like to get my phone back to normal working condition. Does anyone think that changing the actual motherboard itself might solve the problem?
Click to expand...
Click to collapse
I had this problem before, using something small and flat to push the charging connector off the housing will work for awhile. The pin in the charging port is bent down and is very thin it's easy to lift up just use a tiny bit of force to lift it up. The pin touching the housing is causing a short and that is causing your no charge while it's on and mine even went as far as draining my battery very quickly. I did research and found alot of people having this issue on the gnex. I eventually had to turn mine in for replacement, no problems since. Hopefully yours is still under warranty or you can buy the peice that is broken and replace yourself, there is a post above saying what to do for that.

Looks like my phone developed this problem. It sometimes won't charge be it via my pogo dock or USB cord. It seems to start taking a charge after I pop out the battery and then put it back in. I'm going to order another battery and see if that is the problem.

Thank yoiu!!
solved my problem!! I am in your debt

popping the battery out just worked for me too
hlaalu said:
Looks like my phone developed this problem. It sometimes won't charge be it via my pogo dock or USB cord. It seems to start taking a charge after I pop out the battery and then put it back in. I'm going to order another battery and see if that is the problem.
Click to expand...
Click to collapse
I just did the remove battery trick as well and it worked. I just noticed my battery not charging yesterday but figured it was because I was trying to use a different charging in my dad's car. got to work where i left my normal charger and no luck.

thefayeride said:
I just did the remove battery trick as well and it worked. I just noticed my battery not charging yesterday but figured it was because I was trying to use a different charging in my dad's car. got to work where i left my normal charger and no luck.
Click to expand...
Click to collapse
That's good, I tried it a few times but the issue still pops up. To be fair though, I've had this phone and battery since launch day... Almost three years old. I ordered a new battery so hopefully I won't have the issue anymore... And I won't be surprised if my battery life is a little better too.
Sent from my Nexus 10 using Tapatalk 2

hlaalu said:
That's good, I tried it a few times but the issue still pops up. To be fair though, I've had this phone and battery since launch day... Almost three years old. I ordered a new battery so hopefully I won't have the issue anymore... And I won't be surprised if my battery life is a little better too.
Sent from my Nexus 10 using Tapatalk 2
Click to expand...
Click to collapse
The Galaxy Nexus is nowhere near three years old. Your phone would be 18 months old if you had it since launch.
Sent from my Nexus 7 using Tapatalk HD

Excuse me, two years. According to Samsung their lithium batteries have a life of about 500 cycles. So my point is still valid, my battery is probably just on it's way out. I'll find out for sure when my new one comes tomorrow.
Sent from my Nexus 10 using Tapatalk 2

Yeah, since battery life hasn't exactly been the strong point of the GN and some of us had to go though a complete cycle daily, I suspect a lot of folks are going to be seeing more and more issues. Not too long ago, I had a battery that failed in such a way that it would randomly crash the phone and had to be pulled in order to allow a reboot. I would've suspected anything but the battery in that case.
Sent from my SCH-I545 using Tapatalk 2

farshad525hou said:
Try the following:
1.) Turn off your phone.
2.) Get a flat head screwdriver (small one)
3.) Push the flat connector inside the microusb port up. (It often gets bent downwards because it's so thin compared to other phones...)
4.) Boot into the bootloader
5.) Hit volume down until restart bootloader appears. Press power button.
6.) Start phone manually.
Click to expand...
Click to collapse
This kind of worked for me, but the "boot into bootloader and restart it" killed my phone, don't know why. After a lot of a hassle i got it on, with 2% left, again not charging...tried to repush the connector towards the center and now i cant get my charger into the phone, maybe overbend it...what to do?...

I have a strange problem, my Gnex does not charge the battery, first i thought that it was the battery so, I tested the battery on other phone and it charged just fine, and then i ordered the usb/charging assemble from ebay and replaced on my gnex, and still not charging the battery, but when i connect the phone to the pc it recognize it immediately, but still won't charge the battery, anybody has an idea of what my problem is?? and how can i solve it?
Please help!!!

Galaxy S3 (Telus - Canada) Charging Problems

Hi all,
I am hoping you can help. I am having a problem with my Galaxy S3 and I am trying to figure out what the problem is and how to solve it. Around the time of the 4.3 update I started noticing that my battery started to drain very quickly. Initially I just assumed that there was an issue with one of the apps or something in the 4.3 update causing the problem. I then started to notice that my battery would not charge past 51%. Here is the list of things I have tried to fix the issue:
- Different chargers and USB cables. I have tried charging from different power sources in my house and at work, also using my car charger and other peoples chargers that have a S3 that have had no issues.
- I have tried 2 other batteries which I purchased new, one official Samsung Battery and a 3rd party long life battery
- I have done a factory restore multiple times on the phone and also tried rooting and installing a custom ROM to eliminate software.
- I have checked the micro USB port for dust or lint and tried my best to clean out the connection. I haven't been to rough with it because I am worried about breaking the connection.
- I have tried charging the phone without the otter box on and I was worried that might be causing the charger not to go in completely and give a bad connection.
I have GSam installed and when the phone reaches 51% and you look to see the time till charge it always says - Calculating please come back later.
At no point when I have the usb cable in for charging does the charging light go off. Even after the battery hits 51% the charging light stays on but does not charge past that point.
If I leave the phone charging overnight I wake up in the morning and it says 100%, but as soon as I remove the charger it immediately drops back down to 51%. The outcome is the same with all the batteries I have, the only difference is the amount it charges up to. It seems to range from 48% to 51%. I have also tried charging with the unit off and on and can not get it past 51% on any of the batteries.
Any ideas or advice would be greatly appreciated!

I am having an issue myself with charging my S3. I ran into the same problem as you initially and ended up using ODIN to go back to stock. That fixed the drain/charging issue. However now mine wont stay connected. I believe the charging/USB port is going on it. I saw a lot of Samsung phones on Ebay with the same problem so it must be an issue with them. IDK if that could be your problem as well. I tried calling AT&T for a warranty replacement but they wanted me to pay the insurance premium ($200) for a phone that came out in 2012! The S5 will be out soon, they're nuts if they think I'll pay that now for a S3. The only way for me to get a full charge over night is to plug in my phone, then put my high school yearbook on the charger to apply pressure until the green light goes on. It sounds funny and honestly it is, but I'm cheap and don't want to pay the $200 until it's actually dead or I get my tax refund HAHA but then I'll probably just get an upgrade.
I was thinking of buying an extra battery with a external charger to see if that would help. Maybe if you get the external charger, charge it up then put it in your phone it will charge all the way.

Thanks for the reply. I haven't had an issue with the charge light not coming on but I am starting to think it might be a calibration issue. Somehow the issue has changed slightly. It still says 53% when i take the charger out but sometimes the battery life will increase while it is not plugged in. I am assuming that it is reading the % wrong. I am in the same boat with sending it off to repair. They want $150 as a base cost and I am worried that it might turn out they say No Fault Found and I am back to square one, and $150 shorter. I know what you mean about the S5 coming out soon, so I might try and wait it out until my contract is almost up and upgrade to the S5.

No Power - Tab S Dead?

So I woke up this morning to find my Tab drained. I plugged it in for half an hour, then when I picked it up I noticed there was no charging indicator (the green liquid battery thing). So I thought maybe I didn't plug it in right. I reattached everything, tested the charger on another device, then plugged it back into the tab for about 2 hours...still no juice. I tried powering on and doing the reset thing. still nothing. I brought it to a Samsung service center and they said I have a faulty motherboard. Now I'm wondering how the hell that happened when I've been using this device for about 6 months (only 6 months) without any issues, no overheating or strange reboots or anything, and now just like that I have a motherboard issue? The kicker here is that they're charging 75% of the tablet price to fix it! What gives?! I purchased it from a non-samsung mall store so they said I can't claim warranty. I popped the back off and did the battery pull thing and tried to charge - still nothing. Did I buy a device that decided it was a lemon after 6 months light-moderate use?
Anyone else have this happen? It's never been dropped or anything and I was on stock firmware with nothing but root.

In the UK, If your tablet goes faulty in 12months your guarantee is with the place you bought it from, not Samsung.
John.

It's ALIVE! I thought I'd get a 2nd opinion on my Tab since the guys at the Samsung service center popped it open anyway. Went to a generic phone repair store, all they did was hook it up to this box thing, and it came back to life! The guy said something got corrupted and just re flashed everything to stock rooted. He charged me less than $20 and I have a working Tab again. Obviously the very first thing I did with my resurrected device was to call Samsung's hotline and report how this one service center was trying to scam me into buying a motherboard that cost nearly as much as what I paid for the thing brand new.

Some li-poly battery have an protection circuit built in, if the voltage falls below a certain level say 2.5volts per cell, it disables the battery, if you connect an meter to the battery you will get 0volts , you need an li-ion charger that passes an higher voltage that resets the battery and allows it to work again, I wonder if this is what happened.
http://batteryuniversity.com/learn/article/low_voltage_cut_off
John.

Did they connect via USB or to the motherboard?

@tinderbox could be...must have over-drained itself for some reason.
@ashyx I couldn't really see what he was doing since his work table was obstructed by a bunch of stuff and he had his back towards me, I just saw him grab this small black box, then minutes later he showed me that the tab was already powering on though couldn't get past samsung logo, then he went ahead and flashed to stock.

Reason I ask is I wonder if he used a jtag box to ressurect it by reflashing the bootloader.
If he did there must be jtag points on the board as it can't usually be done via USB.
Pity you didn't ask what he actually did as I'm intrigued now.
Did the box look like this: riff box

ashyx said:
Reason I ask is I wonder if he used a jtag box to ressurect it by reflashing the bootloader.
If he did there must be jtag points on the board as it can't usually be done via USB.
Pity you didn't ask what he actually did as I'm intrigued now.
Did the box look like this: riff box
Click to expand...
Click to collapse
Yes! but without the markings.:good:

pawces said:
Yes! but without the markings.:good:
Click to expand...
Click to collapse
Exactly the same or just similar?

yeah i think so... it had similar ports, though not sure about the outer shell of it... i think it was smooth all around with no ridges or anything, just a little black rectangular box.

Sorry to revive an old topic, but i thought i'd do an update instead of start a new one. Tab S died again and I'm now convinced it's over-discharge, as I left it at about 20% and forgot to plug it in before going to bed. Woke up with the tab drained, not responding to any button combinations, not charging with any of my chargers that tested ok with other devices.
Instead of bringing it back to the technician, I thought I'd try mcguyvering the damn thing. I opened up the back, pried the battery terminals up off the board, lifted the battery out, and with a spliced USB cord hooked up to a powerbank, I gave the battery terminals a direct zap, inserting the exposed USB wires into the battery terminals. This took some trial and error as, I didn't know which wire was supposed to go where, but finally I saw the powerbank leds blink, indicating it was discharging into something. I held the wires in place for about 5-10 minutes, noticing some heat on the battery by then. I reinstalled the battery back into the tablet, closed everything up and tried charging again and...hey presto! the tab started charging. :victory: Let it charge for 2 hours and powered on like nothing happened.
disclaimer:
I don't recommend you defibrillate your device's battery unless you know exactly what you're doing and are fully aware of the risks. (I didn't know what I was doing at the time but I was so frustrated at that point I didn't mind if the battery blew up in my face.)

Mine just dead last night while CHARGING (turned off at 13%).....
And refused to turn on till now (still charging and both warm (charger + tab)...
I even plugged an ampere meter to really know if its drawing any or not (it is, at 5.2V 1.7A for 15mins)...
And still no luck
Samsung's device become more ****ty each generations..... Esp the battery...
This one is the replacement batt they gave me after 2mos of usage for infamous Tab S battery issue...

I saw a video on youtube, a guy had a dead 10.5" T1 he took the back off and connected an 1amp microusb charger pcb to connections directly to the battery under a piece a tape, I bought a couple of the microusb charger pcb`s from ebay for 0.42p each in case mine goes dead.
EDIT: I found the video.
https://www.youtube.com/watch?v=BRTgLGrzNz0
John.
pawces said:
Sorry to revive an old topic, but i thought i'd do an update instead of start a new one. Tab S died again and I'm now convinced it's over-discharge, as I left it at about 20% and forgot to plug it in before going to bed. Woke up with the tab drained, not responding to any button combinations, not charging with any of my chargers that tested ok with other devices.
Instead of bringing it back to the technician, I thought I'd try mcguyvering the damn thing. I opened up the back, pried the battery terminals up off the board, lifted the battery out, and with a spliced USB cord hooked up to a powerbank, I gave the battery terminals a direct zap, inserting the exposed USB wires into the battery terminals. This took some trial and error as, I didn't know which wire was supposed to go where, but finally I saw the powerbank leds blink, indicating it was discharging into something. I held the wires in place for about 5-10 minutes, noticing some heat on the battery by then. I reinstalled the battery back into the tablet, closed everything up and tried charging again and...hey presto! the tab started charging. :victory: Let it charge for 2 hours and powered on like nothing happened.
disclaimer:
I don't recommend you defibrillate your device's battery unless you know exactly what you're doing and are fully aware of the risks. (I didn't know what I was doing at the time but I was so frustrated at that point I didn't mind if the battery blew up in my face.)
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Crescendo Xenomorph said:
And still no luck
Samsung's device become more ****ty each generations..... Esp the battery...
This one is the replacement batt they gave me after 2mos of usage for infamous Tab S battery issue...
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Samsung tablets only have issue with battery connectors. The white connector with 6 wires has loose connection, the black connector soldered to mainboard has cracked solder joints. New battery won't solve problem if you don't fix these two flaws. Resolder the battery connector will fix most of problems: not charging, reboot, flickering, auto shutdown.
I posted more details in the threat: flickering screen.

so the problem is Samdung's QC....
anyway no more somedung, I switched to Xiaomi Mi Mix, still preordering from China.....

You have to watch these chinies owened tablet and phone manufactues, they have been found to come with built in spyware, sending copys of all your texts ect back to china, it`s been in the news that last few day`s
Lenovo notebooks had a spyware app and Lenovo had to issue insturctions on hot to remove it once it was found.
John.
Crescendo Xenomorph said:
so the problem is Samdung's QC....
anyway no more somedung, I switched to Xiaomi Mi Mix, still preordering from China.....
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That's OK, I can scan and remove all those spyware.
Still its better to have it properly supported with actual updates (older phone still got all UI + android update, hello MIUI 8).
Rather than using phone without proper software support....
Tab S - buggy and prolly the last MM update
Note 3 - useless LL update, very unstable, consider alpha
Note 8.0 - buggy last KK update, switched to CM13 and happy with it