Develop Bugs

Battery and GPRS connection queston

***EDIT***
Turns out it was a bad battery.
***END EDIT***
SO, I have an sx66 that will connect with little to no problem when the battery is above %50... but as soon as the battery hits that %50 (or below) mark, all bets are off, and it keeps telling me that the answering modem keeps disconnecting, or is unavailable. But, as soon as I plug it into a charger, viola, I can connect and keep going.
I'm assuming there is a setting somewhere in the registry that has to do something with something. I could understand the battery being wayyyy down, and the phone just not having the juice to connect, but this is very consistent. I also can't find any relevant posts concerning this issue.
please help.

do you have a voltage multimeter? because this sounds alot like the problems my BA have that nobody gave me any input on.
when the phone was on hte charger, i couold make calls and **** noproblem. however, when i took it off? dead. instantly, it dropped all cell reception.
i figured it was the battery, so iswapped it out. and it SEEMS to have resovled itself.
so my opinion is, swap out the battery and give that a shot. its very likely thats the problem.
if it doesnt help, try flashing it with WM5 and setting it up. that may give us some insight as to if its hardware or software.

I'm gonna go with it's a bad(ish) battery. I noticed the other evening, and again tonight (paying attention) that the battery was registering %49, but the whole unit kept cutting off as follows: do some stuff, close all with pocket nav, turn off the screen, and into my pocket. Pull it out, 5 minutes later and turn it on - to the boot screen. do whatever, turn off the screen, back in my pocket. 5 minutes later, same problem. I think the battery is registering it's capacity wrong? I'll look to see how to re calibrate.

boot screen being what, the screen alignment or what?
btu yeah. it sounds like the battery. that or the blueangels have really inconsistent radios.

tmo splash screen with the rom radio and ext rom numbers....

ass i thought this was hte otherthread lmfao.
and yeah. that same **** happend to me when i first got my imate. it's the battery.

Tried to recalibrate. not good.
I tried to cover that pin like it says in the wiki (universal's battery problem) and put the battery back in... the device wouldn't power on, so i pulled the battery and tape, and now the unit boots and all, but won't find service. at all.
Gonna try the newest radio stack, and see if that helps.

Upgrade to 1.15 saved the radio. It works now.

ohgood., you had me worried, i think its sad i care about your ba almost as much as mine.
butyeha. you should do a SD backup, theres a section in the wiki wiht the commands. then dump it with dd as an image to your pc, so incase you do **** something up you can flash from SD. of course if its a actual brick, it wont help but its a decent insurance policy.

Gotta say, God has smiled upon my cell phone situation(s).
I had to use a ****ty frankenrazr (built from parts of others) for like 2 years, and it was a phone/txtr, and that's it.
I guess for my patience, I have been rewarded with bounty... A BA, now with a camera, aluminum case, sync cables, new speaker, an a pen stylus, for about $45, and just two days ago I got a universal for some old fujitsu touchsceen computers and a little cash - about $150 in all.... Awsome

i have same problem with my MDA III from tmobile
i dont have any SD but i"ll buy 2GB
i have orginal microsoft 2003 softwere installed and i got the phone like gift
when is it charging everything works fine (wifi,gprs) but when i put out phone from USB CHARGER and go to wifi,gprs,night mode for camera or similar
IT JUST FLASHES-BLACK AND IT TURNS OFF

YEah, got a new battery, and it still cuts off at 42%. Eh...

[Q] Note 8.0 won't start... period. May be hard bricked.

A while back i used to "try" to root stuff. I sucked at it BAD. Anyway, I have a Galaxy Note 8.0 (GT-N5110) that I had rooted to a certain point (very superficial) and I just kept it the way it was, that way I could use Multi-window for any app. This morning I unplug my tab from the charger only to be disappointed that it will not turn on. Ive tried different power outlets, different cables, different base chargers, even the whole "power+vol_up+home" thing... nothing. I never updated the tab when Kitkat came through the pipeline. Im freaking out that a new major update automatically happened overnight or something. Im sorry to trouble you all, but does anyone have suggestions? Since it's rooted I can't take it to Samsung or Best Buy. Honestly if I could just get it back to stock, that would be awesome, but im more concerned about getting it to simply turn on. Any Ideas?

If your device is rooted you won't get an OTA update so that could not be the problem. You can try to unplug battery (mus open the device)"and see what happened. Maybe your battery is faulty or someting else.

K... I appreciate it Ill take a look. But, lets say I actually open it (without making things worse), how do I determine if the battery is in fact faulty? If it is, can I get a replacement? preferably an official samsung one.
EDIT:
Scratch that. Sry, Im just always scared of doin stuff, so I always feel like I have to ask the question, but I'll look it up. Im confident at least this should be easy enough for me to do Thank you again.

The problem with this device is you cannot pull out the battery easily. Maybe after that steps it boots up again.

Battery removal wasn't bad... now I'm just waiting for a new one (ordered on ebay, crossing fingers hoping it was legit). What did you mean "after that steps it boots up agin."? Will the tablet boot up without the battery if it's plugged in or something?

varxtis said:
Battery removal wasn't bad... now I'm just waiting for a new one (ordered on ebay, crossing fingers hoping it was legit). What did you mean "after that steps it boots up agin."? Will the tablet boot up without the battery if it's plugged in or something?
Click to expand...
Click to collapse
Wow, that suck. sorry for you man. For now, try to plug the tablet to a computer and while device manager opened and see if there is change. If the change say "qhsusb" or something along that line and not your model number . . . changing battery wont do anything because it's already hard bricked. if not, finger cross.

varxtis said:
What did you mean "after that steps it boots up agin."? Will the tablet boot up without the battery if it's plugged in or something?
Click to expand...
Click to collapse
No. But sometimes after this step and reconnecting the battery the device boots up. Also a battery calibration is done.

I tried plugging in the tablet to the computer with the old battery and then without any battery. Neither one prompted anything in the device manager. Today I got the new battery (assuming its legit and in good condition) in the mail. I plugged it in, and nothing. Plugged the tablet with the new battery to the wall charger, nothing. Plugged the tablet with the new battery to the computer while running device manager, nothing.
I'm going assume that the new battery is dead and let it stay connected to the wall charger for 8+ hrs, and see if there are any changes.
I just really don't understand what the deal is and why this would randomly happen. Ive never had problems with the firmware or anything. I have felt like there was an issue with the battery being that it doesn't seem to be keeping much of a charge... but for it to just Hard Brick like this seems so out of the blue. Can anyone provide me with additional suggestions please?

Maybe I'll ask it this way...
Is there any way to test if the batteries are food? That way I can at least determine if the tablet is in fact hard bricked or just bad batteries.

Might not be what you want to hear, but if different cables, chargers and batteries don't work, then maybe there was a power surge overnight while the device was plugged into the wall that took out the device (I once lost a computer that way and now I only use surge suppressors (note that not all power bars are proper surge protectors! See here: http://en.wikipedia.org/wiki/Surge_protector ) that are UL 1449 certified with a low clamping voltage and high energy absorption rating as a minimum; the fancier ones can even tell you if your wall outlet has a grounding problem). Or your tablet's USB port is broken, but that doesn't make sense based on what you've said thus far. Or you're just super-unlucky and all of your replacement parts are also faulty (it could happen). Either way, I've got my fingers crossed for you!
In the meantime, a multimeter would be able to tell if the batteries hold a charge, and whether or not power flows to the device when the battery is attached or the device is plugged into the wall or computer.
Just make sure you read up on how to use one first so you don't accidentally electrocute yourself:
https://learn.sparkfun.com/tutorials/how-to-use-a-multimeter

rtiangha said:
In the meantime, a multimeter would be able to tell if the batteries hold a charge, and whether or not power flows to the device when the battery is attached or the device is plugged into the wall or computer.
Just make sure you read up on how to use one first so you don't accidentally electrocute yourself:
Click to expand...
Click to collapse
Ill definitely be looking into this option in depth tomorrow, and deeply appreciate it. At least it's something. T_T I don't want my tablet going to electro grave. This sucks so bad. This has been a month from hell
First my printer decides its time to start printing crooked over a couple of months, getting so bad that it jams up a few weeks ago, requiring me to get a new printer, which has been a fiasco in and of itself that still hasnt been resolved. Ive gone through 4 printers in one week, all of them different model printers, all from HP, and each and every one of them defective.
Then my laptops video card tweaks out because of installing Splashtop Stream, which starts a domino effect requiring me to do a factory reset on the laptop.
Then my Tablet just decides to kill over.
Then my Microsoft Arc mouse decides it doesn't the want to wheel to work requiring me to purchase a new one, and when I receive it, the cover for the battery compartment is missing and the wheel click is defective. It took 2 and a half weeks to resolve
Then I get bronchitis.
all in less than a month.

Alright, ya... it's dead. Oh well. Here's me trying to make the most of it: are there any places that buy bricked tabs? I figure the parts have to have some sort of salvage value.... maybe.

You can't go to a Samsung service shop? They might not fix it under warranty, but I assume they'll have a look at it and give you an estimation? I feel for you, we all have had these awful weeks... I soft bricked my pad, my computer started to play up, my other computer decided it wanted to die after years of hard work and not skipping a beat, my son got the flu, the missus was on her monthly(grumpy wife..take cover), and when I took a break from it all on the toilet I found that we had run out of paper! To make matters worse, my favorite football team lost from a second division team.. This all happened in one single day! So chin up, it might take a week, but when all it's fixed again you'll experience deep appreciation for the things you have taken for granted.... (xda fixed my tablet, time fixed my wife)
Sent from my GT-N5100 using XDA Free mobile app

Sry for delayed response.
Im very very doubtful that Samsung will help. I have two more... ideas, before I go to Samsung. Non-invasive of coarse, wouldn't want to make matters worse.
K, So first off I took the tablet with extra battery to a tech place in the area that said the batteries are fine, but when they put a multimeter to the motherboard nothing came back. Basically its dead according to them. There's one more shop in the area I want to get a second opinion from. Next, does anyone know anything about an app called "Splashtop Stream"? I'm a fond user of Splashtop to control/view my computer straight my tablet, but when I installed "Splashtop Stream" to use the tablet as an extended screen (not just a cloned second screen), my tablet and both computers I tried it with did NOT like it. I immediately uninstalled it, but it dawned on me that it was just a matter of days later that my Tablet died. I hate to grasp at straws, but if an app like that is too resource intensive, I'm okay with seeing a connection that it fried my tablet. I can't just ask Splashtop "Hey, does your app fry motherboards", so I need a way of researching legitimate known problems. I can't afford a $400 tablet right now.
The reason why I'm using Samsung as a last resort is because it's outside my warranty time, and the moment they know that I did even the simple fast-mod on it, they'll slap it down and won't help. There no custom boot or Roms on it.
With all this said, any suggestions anyone?

misternagoya said:
You can't go to a Samsung service shop? They might not fix it under warranty, but I assume they'll have a look at it and give you an estimation? I feel for you, we all have had these awful weeks... I soft bricked my pad, my computer started to play up, my other computer decided it wanted to die after years of hard work and not skipping a beat, my son got the flu, the missus was on her monthly(grumpy wife..take cover), and when I took a break from it all on the toilet I found that we had run out of paper! To make matters worse, my favorite football team lost from a second division team.. This all happened in one single day! So chin up, it might take a week, but when all it's fixed again you'll experience deep appreciation for the things you have taken for granted.... (xda fixed my tablet, time fixed my wife)
Sent from my GT-N5100 using XDA Free mobile app
Click to expand...
Click to collapse
O_O That does suck!! Sry man.

varxtis said:
Sry for delayed response.
Im very very doubtful that Samsung will help. I have two more... ideas, before I go to Samsung. Non-invasive of coarse, wouldn't want to make matters worse.
K, So first off I took the tablet with extra battery to a tech place in the area that said the batteries are fine, but when they put a multimeter to the motherboard nothing came back. Basically its dead according to them. There's one more shop in the area I want to get a second opinion from. Next, does anyone know anything about an app called "Splashtop Stream"? I'm a fond user of Splashtop to control/view my computer straight my tablet, but when I installed "Splashtop Stream" to use the tablet as an extended screen (not just a cloned second screen), my tablet and both computers I tried it with did NOT like it. I immediately uninstalled it, but it dawned on me that it was just a matter of days later that my Tablet died. I hate to grasp at straws, but if an app like that is too resource intensive, I'm okay with seeing a connection that it fried my tablet. I can't just ask Splashtop "Hey, does your app fry motherboards", so I need a way of researching legitimate known problems. I can't afford a $400 tablet right now.
The reason why I'm using Samsung as a last resort is because it's outside my warranty time, and the moment they know that I did even the simple fast-mod on it, they'll slap it down and won't help. There no custom boot or Roms on it.
With all this said, any suggestions anyone?
Click to expand...
Click to collapse
I randomly bumped here and I'm no expert, but if your tablet's motherboard is indeed dead, I believe there is absolutely no way they can tell that the device got rooted at some point. You did not "hard brick" it, that's a whole other thing, or at least so I've learned in my not-very-long experience. "Hard brick" should be the result of flashing a kernel made some other device, which definitely is not your case. Moreover, that does not kill the motherboard, it just makes anything unbootable: it's a software problem, so it can actually be detected. You had a hardware failure that most likely completely wiped any proof that you have ever modified your device, so the only problem that you might have, I think, is them telling you that they take no responsibility for what your power outlet has done to the device, but they shouldn't be able to detect any modification that you have made. In my opinion technical support is worth trying.

Awesome!! Thank you so much!

varxtis said:
Awesome!! Thank you so much!
Click to expand...
Click to collapse
You're welcome, good luck!

Just thought Id let everyone know that I managed to get Samsung to compromise on the matter since the Tablet is only 5 months past warranty (1yr 5mnths since purchase). So, not much longer and hopefully Ill have a tablet that works yet again.

tab gets flickering screen and reboots

I dropped by tablet battery down once and now every so often the screen flickers with vertical lines and this is followed by loss of network and the thing reboots.
I've read this to be a battery problem.
Warranty is still active but I've rooted it and my Knox counter has gone up.
What do you think XDA? Just get a replacement battery?

NightShadow02 said:
I dropped by tablet battery down once and now every so often the screen flickers with vertical lines and this is followed by loss of network and the thing reboots.
I've read this to be a battery problem.
Warranty is still active but I've rooted it and my Knox counter has gone up.
What do you think XDA? Just get a replacement battery?
Click to expand...
Click to collapse
If you have the ability, since it was dropped, I would open it and make sure connection is tight to battery and screen. Then if it still acts up, get a battery. Several people had battery issues out of the box. All it turned out to be for a few was a loose connection.

i was thinking about that but i'm afraid of voiding warranty. do i even still have warranty? due to the knox?

flhthemi said:
If you have the ability, since it was dropped, I would open it and make sure connection is tight to battery and screen. Then if it still acts up, get a battery. Several people had battery issues out of the box. All it turned out to be for a few was a loose connection.
Click to expand...
Click to collapse
Well ive opened it up and tightened everything i can see and it seems to work ok for a while, when the charge gets to around 20-30%, the tablet flickers, all mobile connections are lost and 75% of the time, reboots.
So i went ahead and got a new battery. Now this was worse kinda. At random moments, like unlocking the screen, or replying to a message, or maybe just a high cpu load event, the tablet just turns off and is unable to be powered back on without first connecting it to a power supply like a wall charger or a power bank.
The time and date will be reset once its back on and ill have to wait a few minutes before the auto network time setting kicks in before i can use something like whatsapp.
Anyone got any clue what might be causing this problem? Thanks in advance, helpful xdarians.

NightShadow02 said:
Well ive opened it up and tightened everything i can see and it seems to work ok for a while, when the charge gets to around 20-30%, the tablet flickers, all mobile connections are lost and 75% of the time, reboots.
So i went ahead and got a new battery. Now this was worse kinda. At random moments, like unlocking the screen, or replying to a message, or maybe just a high cpu load event, the tablet just turns off and is unable to be powered back on without first connecting it to a power supply like a wall charger or a power bank.
The time and date will be reset once its back on and ill have to wait a few minutes before the auto network time setting kicks in before i can use something like whatsapp.
Anyone got any clue what might be causing this problem? Thanks in advance, helpful xdarians.
Click to expand...
Click to collapse
I'm not by any means an expert or repairman of any kind, just so you know. I'm thinking maybe a loose connection at the terminals on the board the battery connects to or if they use a separate board for the battery to connect to and then to the main board it may be somewhere along in there. Maybe a loose wire going into the tab that connects to the prongs. It sure sounds like something isn't making a good connection. Sounds like a load gets put on it and it and that bad connection can't handle the load.
Might just be you're going to have to send it off...

You may be right. Sounds like a particular connection which does higher load or something. Once i put the tablet in power save mode, the symptoms never reappeared. I dont notice a drastic slowdown in the tablet either. Probably am prolonging the inevitable.

Same Symptoms
NightShadow02 said:
You may be right. Sounds like a particular connection which does higher load or something. Once i put the tablet in power save mode, the symptoms never reappeared. I dont notice a drastic slowdown in the tablet either. Probably am prolonging the inevitable.
Click to expand...
Click to collapse
I am facing exactly same issue what you have described and am in same situation, have tripped Knox on my Tab S 8.4.
I can see that you have been able to suppress the behavior by putting it to Power Saving mode. Have you experienced flicker and reboot since then? I am planning to take it to Samsung store not sure if they will honor warranty, did you tried that?

misrasandeep said:
I am facing exactly same issue what you have described and am in same situation, have tripped Knox on my Tab S 8.4.
I can see that you have been able to suppress the behavior by putting it to Power Saving mode. Have you experienced flicker and reboot since then? I am planning to take it to Samsung store not sure if they will honor warranty, did you tried that?
Click to expand...
Click to collapse
nope, ever since the Power Saving mode solution, it hasnt flickered and rebooted yet. and my warranty was expired by that point so i didnt bring it to the shop. no noticable reduction in performance so far

possible battery connector
NightShadow02 said:
Well ive opened it up and tightened everything i can see and it seems to work ok for a while, when the charge gets to around 20-30%, the tablet flickers, all mobile connections are lost and 75% of the time, reboots.
So i went ahead and got a new battery. Now this was worse kinda. At random moments, like unlocking the screen, or replying to a message, or maybe just a high cpu load event, the tablet just turns off and is unable to be powered back on without first connecting it to a power supply like a wall charger or a power bank.
The time and date will be reset once its back on and ill have to wait a few minutes before the auto network time setting kicks in before i can use something like whatsapp.
Anyone got any clue what might be causing this problem? Thanks in advance, helpful xdarians.
Click to expand...
Click to collapse
I have seen this problems on 2 tablets 10.5 and 8.4 the connector where battery is connected on motherboard gets loose which causes reboots and flicker
Solution in my case was resoldering that connector again

i had the same problem, opened up my tablet, just disconnected the battery, cleaned the contacts, pushed it back, made sure its nice and snug, put it all back together and now battery doesn't drain as fast, no more flickers and reboots!

hmm. i'll have to give it a try. you think this may be something to do with condensation?

Sorry for the bump, but I'm having this issue as well on my S 8.4. Custom ROM. The thing with me is that it's not consistent. One day, it will do it a few times; others, no issues whatsoever. I'll try the suggested if it gets progressively worse.

Hey guys,
Unfortunately our home's tablet (Tab s 8.4 Wifi) has the same problem.
It never did weird whatshowever, but when I flashed a custom rom (which went perfectly smooth actually) the screen flashes and the tablet reboots sometimes.
Now it weird that this never happened before and only when I flashed a custom rom it began showing this behaviour.
I am affraid of opening this tablet, and I guess because of the custom rom there is no warranty left anymore (or can this be bypassed by some terminal trick?)
Also I question myself if this is not a software issue, and that it can be fixed with software or so?
Thanks for answering!

My Fix
Hey Guys!
I might have some surprising news to tell about this "issue".
I saw some unboxing video's and saw at what place the battery connector was placed. It was some sort of a 'push to click' system.
So what I did was the following:
I pushed the tablet at the place of the battery connector. I tried this at various places until I heard a *click*.
Now I don't have this issue anymore. Jay!
I hope this will help you too!

I started to have the same issue on a Tab Pro 12.2, presumably after the battery has lost considerable amount of its energy. Normally I remember this tablet to have a dazzling 10+ hours of usage time. Just after some serious usage time of more than 2 years this issue started, along with increasing temperature and finally reboot. From time to time Android gave a warning message about overheating. From time to time charge values drop big values at a time. From 45 to 20 or 80 to 50. Seems arbitrary. This was happening even when I was on stock, then I switched to some Android 6 stock port from some other tablet. Still the same.
I believe the battery needs replacement. (That's obvious after 18 months, I just mean blinking is related to this) Hope I can find a high quality one cause there are several garbage batteries.

Save Note 7 from exploding, untill replace

Save Note7 from potential exploding!
1. "Inportant" Disable fast charging under battery settings ( there is toggle to turn off)
2. Use OEM wall charger with OEM cable
3. Before charging phone close all active aplications and clear cashe
4. Before charging turn off wifi, bluetoth,nfc etc..
5.DO NOT CHARGE phone ubder pillow or in bad
Hope this tips help you guys and me

Perhaps we should also all be taking acupuncture and subscribing to new age homeopathy therapies? :silly:
If the battery wants to 'go bang' it will, no options will change that fact.

i'll just take my chances ?
Sent from my SM-N930F using Tapatalk

I think switching off fast charging would make a difference. Ad for the rest? Not sure.

radioraheem2 said:
I think switching off fast charging would make a difference. Ad for the rest? Not sure.
Click to expand...
Click to collapse
It doesn't, otherwise we would have been advised to turn it off by Samsung before the handset is replaced. Or a software update disabling the feature would have been pushed.

alltaken123 said:
It doesn't, otherwise we would have been advised to turn it off by Samsung before the handset is replaced. Or a software update disabling the feature would have been pushed.
Click to expand...
Click to collapse
Samsung didn't say a word what to do untill replace, but if you read about fast charging, there says " your device will charge quickly but may become hot"

It's got nothing to do with fast charging, it's a fault in the battery that will heat up and catch fire if you're fast charging or not....
http://www.samsung.com/uk/news/local/uk-statement-regarding-galaxy-note7
Sent from my SM-N930F using Tapatalk

Ardianow1 said:
Samsung didn't say a word what to do untill replace, but if you read about fast charging, there says " your device will charge quickly but may become hot"
Click to expand...
Click to collapse
See the post above mine

bottom line dont do anything that cause the phone to get too hot for long period of time.

Kansatsusha said:
bottom line dont do anything that cause the phone to get too hot for long period of time.
Click to expand...
Click to collapse
I think a lot of people are concluding that heat is the issue and will create the battery problem. I can't see any evidence that heat causes the battery fault to occur.

Well exploding battery will cause heat.... sooo XD... There probably many other component that cause it but anyone willing to force the note7"C4" to explode?

its a battery fault - the battery cells which are affecting the units are drawing too much power from the mains which in turn heats the battery past limit. i've had mine for about 4 days in the UK and three have told me "no recall or safety instructions have been given by company"
and samsung support have said "none of the problems has occured in the UK so you are fine to use and if it gets hot close all apps and place phone in cool place away from direct sunlight"
but samsung did say they were replacing phones. left details and call back will be in 7days
was on hold for 1 hour waiting for them to answer. might be quicker popping into a samsung store and asking about it.
but if people in UK need a piece of mind and wants to ring samsung the phone number to use is 0330 726 1000 *****THIS IS FOR UK RESIDENTS ONLY*****

remix754 said:
its a battery fault - the battery cells which are affecting the units are drawing too much power from the mains which in turn heats the battery past limit. i've had mine for about 4 days in the UK and three have told me "no recall or safety instructions have been given by company"
and samsung support have said "none of the problems has occured in the UK so you are fine to use and if it gets hot close all apps and place phone in cool place away from direct sunlight"
but samsung did say they were replacing phones. left details and call back will be in 7days
was on hold for 1 hour waiting for them to answer. might be quicker popping into a samsung store and asking about it.
but if people in UK need a piece of mind and wants to ring samsung the phone number to use is 0330 726 1000 *****THIS IS FOR UK RESIDENTS ONLY*****
Click to expand...
Click to collapse
I got a phone call from O2 earlier offering me to return the phone for a full refund or a partial refund with a different handset.
the option they didn't advise was to hold onto the phone and they will replace them when they get the new stock, they said this has been the most popular option with the majority of people opting for it, but they also said should the phone show any signs of the problem (getting hot when charging or swelling) I can take the phone in at any time for a refund.
chances are 3 just doesn't have all the info yet, but the recall is every phone, Samsung is probably still communicating with suppliers so it is likely a case of the firms are still learning then they will have to work out how to pass on the information to those affected.

I would have to say it's fast charging...or generic adapters. Because I used the original cable with a generic adapter and after charging for some time, the phone was extremely hot. As in ive never felt any phone become that hot. This was maybe in the first few days I got the phone. I saw fast charging was on so I turned that off.
I stopped using that particular adapter as well (which works for all our other Samsung and apple phones and pads) ... And it never became hot again.
I use another non branded adapter with a non Samsung cable in the office to charge and it doesn't get hot there. Doesn't get hot with my non branded car charger as well.
So my guess is it's the fast charging option. Or just that particular adapter. But so far... Fast charging off... With different adapters and cables.. And it's working fine.. And cool

the problem is 100% in the battery, nothing else in the phone is at fault.
basically when they make a battery it is done with layers of material and a catalyst (acid or similar) inside the battery is compartmented, if 2 of these compartments manage to interact with each other due to a fault in the separator you get a runaway reaction, at best you get a bit swelling or a hot battery, worst case it goes critical and fails (goes pop)
if you have a phone with a faulty battery you can play it safe and turn off options such as fast charging, but the fact is if the battery is one of the few faulty batteries in the wild you are only delaying the inevitable.
the only way to protect the phone is to monitor it carefully while it is charging as if the battery is faulty no amount of changing settings will solve the problem as if that was the case they would have released emergency firmwares by now to minimise risk.
but even then when the phone gets warm it isn't always the battery, my battery normally sits around 30-35C (even while charging) but my phone sometimes feels warm but the problem is the CPU running some times at 50-60C making the phone feel warm and not the actual battery.

G3 Freezing, restarting into bootloop

I'm back again XDA. Even more G3 problems!
So since the last time I posted, I've replaced the board on my G3. Everything was great up until the SIM reader quit out. Switched to an HTC One M9 and boy is it terrible. So I use the G3 for music, games, etc. Didn't bother rooting or anything. Running VS9854BA. It's always on Airplane mode with WiFi enabled, I try not to let it overheat since the WiFi went to **** on my last board. And what do ya know, as I was typing up a comment on Facebook the thing just freezes up, makes some ****ed up screeching noise, and tries to restart. I get boot looped and notice a red and blue led. So I pull the battery, hold down the power for a bit and throw the battery back in. It boots up. A few minutes later the phone freezes and does the same thing. The battery level was around 80% on this battery. I try another OEM battery and it works fine for the rest of the night. However, the phone is now doing the same thing with that battery. I've only had issues with non official batteries in the past. For example, one battery I have will make the phone reboot after using the camera. Anyways, I'm iffy on purchasing a new battery. I don't want to pay $6-10 on a POS that was made in 2014. And I don't want to gamble on buying a $15-20 OEM battery from LG, as it may still be old and degraded; or won't even solve the problem. I tried contacting LG to see if I could get any insight, or to see if they are selling newer manufactured BL-53YH batteries and have yet to hear from them. I have noticed most people have issues with LG phones two months after their warranty ends. I was surprised to see the G3 last a few years and would like to get some more time out of it. If my 2011 galaxy nexus still works flawlessly, so should the G3. In the meantime I put a little noctua thermal paste on the EMMC and was baffled by the temperature decrease in cpu z. It still doesn't fix anything though. Any thoughts here? Should I gamble and buy the battery or is this hardware failure?
TLDR: LG devices may be time bombs and their support sucks.

There seems to be a lot of bootloop/battery issues this week. I hope device is not a "time bomb".
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n00dle24 said:
I'm back again XDA.... Should I gamble and buy the battery or is this hardware failure?
TLDR: LG devices may be time bombs and their support sucks.
Click to expand...
Click to collapse
"...as I was typing up a comment on Facebook..."
Maybe it's just the universe trying to tell you that Facebook sucks?
Kidding aside - it sounds like your phone is dying a slow death. Normally if you had just the restart issue I would suggest a new battery(even with the reboot at 80% - old batteries get weird), but with the sim issue combined with the screeching noise red/blue light reboot - which usually delivers a green screen kernel panic reboot - it sounds like the weirdness that occurs when a G3 dies.
If it were a bad battery I think it would just shut down, reboot to the LG logo, and then bootloop(that's what mine did when it failed); but failing G3 batteries do some weird things sometimes. To t-shoot a bad battery I guess you could try plugging the phone in and using it while charging to see if any troubles occur; if not, then invest in a battery. I can't say that is a fool proof way to check the battery though...the best way is always to replace it.
If it's (what is believed to be) a solder issue on the board - which a lot of G3 users have reported as the phone has aged - you can try the paper trick to create enough pressure on the chips to complete the solder connection or even using some heat to try and get some solder to reflow, but those are generally only temporary fixes...the issue usually comes back in time. It may be worth it to try the paper trick to help you troubleshoot your issues - if the trick fixes it briefly then you know it's a hardware issue and you can make a decision from there. If you have one of these solder issues it's just best to move on.
So flip a coin: replace the battery for @$20, or say eff-it and get a new phone; sounds like a tough decision...glad I'm not making it - yet.
*If you don't know what the paper trick is just search the G3 forums...screen flicker threads usually mention it and there are other threads out there too.