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Charging issues hd2

This is my 2nd phone....Im having an issue with charging. I plug my phone into be charged using my an HTC charger and the light that indicates that the phone is charging blinks from orange to green. When this happens the phone isn't charging. Any1 having the same issue or has any advice HELP PLEASE!!!

I think my wife's phone had the same issue. It would look like it was charging, was supposedly charging, yet it would shut off and die in the middle of the night. Or would be dead by noon, even though she hadnt really used it.
Tmo replaced her battery and she hasnt had an issue since.

That's the thing I've gotten a replacement battery and a replacement phone and Im still having the same issue....I shouldn't want to throw my phone @ the site of it...

kbryant2095 said:
That's the thing I've gotten a replacement battery and a replacement phone and Im still having the same issue....I shouldn't want to throw my phone @ the site of it...
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Does the little LED blink from green-orange even on the new phone? When you see that, it's the phone telling you there's a hardware issue with charging...either a bad batt or a bad charging circuit. Get the phone replaced. Make sure you demonstrate to tmobile the exact symptoms, and test the replacement as soon as you get it.

[Q] Red light of death and it's consequences

The way the story goes:
My girlfriend drops her N4.
The screen breaks and I replace it.
About two weeks pass and she gets the red light of death.
I do some homework, read few threads, watch few videos and try everything I found before I take device apart again.
Try pushing all the buttons I read about, while plugging the charger, while unplugging and standing on one foot and singing "Mary Had a Little Lamb" and other voodoo. No success.
Taking the back cover off and unplugging the battery. Connecting it back, closing the N4, try to power it up but no signs of life.
Suddenly I realize the device is very hot. VERY hot. I start taking it apart again, unplug the battery and let it cool. After that I plug the battery back again leave the back cover of, to check if the powering up process made it so hot. Well, no. After about 15 seconds I begin to feel the heat.
I decide to blame the battery from my own N4. I take my own N4 apart, try to get the battery out, but while doing it I damage the battery and it starts smoking. So now my device is officially dead too. My N4 battery goes to the trash and I think "whatever... I'll try her battery on mine.". I plug it in and the N4 stays cold for few minutes, I close the back door and it powers up flawlessly and now runs for few hours.
Since I she bought the N4 in the US she had no warranty here where we live, so that's the reason I changed the screen myself which voids any chances for RMA even if could figure a way to get it back the the US.
Meanwhile I ordered a new battery for myself.
Do you guys think it the logic board that's dead (If so, should I replace it?)? Maybe other part that just does short circuit? Maybe the battery got f***ed during the screen replacement and it just took time to kill the entire phone with overcharge or something? Any other ideas I didn't lay my mind on?
Thanks in advance for your replies!

dndcb said:
The way the story goes:
My girlfriend drops her N4.
The screen breaks and I replace it.
About two weeks pass and she gets the red light of death.
I do some homework, read few threads, watch few videos and try everything I found before I take device apart again.
Try pushing all the buttons I read about, while plugging the charger, while unplugging and standing on one foot and singing "Mary Had a Little Lamb" and other voodoo. No success.
Taking the back cover off and unplugging the battery. Connecting it back, closing the N4, try to power it up but no signs of life.
Suddenly I realize the device is very hot. VERY hot. I start taking it apart again, unplug the battery and let it cool. After that I plug the battery back again leave the back cover of, to check if the powering up process made it so hot. Well, no. After about 15 seconds I begin to feel the heat.
I decide to blame the battery from my own N4. I take my own N4 apart, try to get the battery out, but while doing it I damage the battery and it starts smoking. So now my device is officially dead too. My N4 battery goes to the trash and I think "whatever... I'll try her battery on mine.". I plug it in and the N4 stays cold for few minutes, I close the back door and it powers up flawlessly and now runs for few hours.
Since I she bought the N4 in the US she had no warranty here where we live, so that's the reason I changed the screen myself which voids any chances for RMA even if could figure a way to get it back the the US.
Meanwhile I ordered a new battery for myself.
Do you guys think it the logic board that's dead (If so, should I replace it?)? Maybe other part that just does short circuit? Maybe the battery got f***ed during the screen replacement and it just took time to kill the entire phone with overcharge or something? Any other ideas I didn't lay my mind on?
Thanks in advance for your replies!
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so judging from your experiences it is not a dead battery that causes the red light of death problem?
i am wondering because i too have red light of death on my 2nd batch nexus 4 (ordered 11/27/12, delivered december 13 2012) and i too took it apart and removed battery for charging, this did nothing but i have a new nexus 4 coming from rma and i would like to swap the batteries and see if that will help because i would like to wipe the phone im sending back but idk if thats possible

ae1990 said:
so judging from your experiences it is not a dead battery that causes the red light of death problem?
i am wondering because i too have red light of death on my 2nd batch nexus 4 (ordered 11/27/12, delivered december 13 2012) and i too took it apart and removed battery for charging, this did nothing but i have a new nexus 4 coming from rma and i would like to swap the batteries and see if that will help because i would like to wipe the phone im sending back but idk if thats possible
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I ended up getting a used motherboard from ebay for about 100$ and replacing it. Still works like a charm.
But I can't promise you anything, since it may be any other part that causes a short circuit and burns it. I just took my chance.
For me unfortunately the RMA wasn't an option.

[Q] Phone Won't Charge - Gets Extremely Hot When I Try

So all this happened sometime during the night of 7/1 & morning of 7/2. I noticed when my alarm went off on my phone, my phone was EXTREMELY HOT. Very uncomfortable to the touch. However the battery was at 100%. Not really thinking anything of it, I used it as normal and when bedtime rolled around, I plugged it back in the stock cable & charger. No "beep" indicating it's charging. No change to the battery icon. I started troubleshooting and testing it with different cables/different charger combinations. My phone would not charge at all but everytime I connected a charger to it while it was turned on, it started getting very hot.
I eventually just turned the phone off and attempted to charge it again. When it's off, it won't charge (but won't overheat).
I did notice that when I used another charger (that had an LED indicator of when it was charging), it would completely go off when I plugged my GS4 to it.
I'e never used any other charger with my GS4.
Any ideas WTF is going on?

Faluzure said:
So all this happened sometime during the night of 7/1 & morning of 7/2. I noticed when my alarm went off on my phone, my phone was EXTREMELY HOT. Very uncomfortable to the touch. However the battery was at 100%. Not really thinking anything of it, I used it as normal and when bedtime rolled around, I plugged it back in the stock cable & charger. No "beep" indicating it's charging. No change to the battery icon. I started troubleshooting and testing it with different cables/different charger combinations. My phone would not charge at all but everytime I connected a charger to it while it was turned on, it started getting very hot.
I eventually just turned the phone off and attempted to charge it again. When it's off, it won't charge (but won't overheat).
I did notice that when I used another charger (that had an LED indicator of when it was charging), it would completely go off when I plugged my GS4 to it.
I'e never used any other charger with my GS4.
Any ideas WTF is going on?
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Can you give us any insight on the phone such as any custom flashes or possible root permissions to apps that might affect the battery?
Most likely than not the battery might be fault, I highly doubt it would be anything else unless it's flashes with a certain kernel or rom that might have a bug or two.

L1qu1d said:
Can you give us any insight on the phone such as any custom flashes or possible root permissions to apps that might affect the battery?
Most likely than not the battery might be fault, I highly doubt it would be anything else unless it's flashes with a certain kernel or rom that might have a bug or two.
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Oh. Sorry about that. This phone is as stock as it gets. Nothing custom about it.
I talked to AT&T Chat this morning and they said they think it's the battery. I've never really heard of a battery preventing a charge problem, but that's what they told me it was.
The crappy part is, they are sending me a battery first (and if that doesn't work), they told me to call them back to have the phone replaced. What's worse is if it isn't a battery problem, I'm out a phone for the entire weekend until Monday or Tuesday.

Faluzure said:
Oh. Sorry about that. This phone is as stock as it gets. Nothing custom about it.
I talked to AT&T Chat this morning and they said they think it's the battery. I've never really heard of a battery preventing a charge problem, but that's what they told me it was.
The crappy part is, they are sending me a battery first (and if that doesn't work), they told me to call them back to have the phone replaced. What's worse is if it isn't a battery problem, I'm out a phone for the entire weekend until Monday or Tuesday.
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I think in most cases (i don't know AT&T) they send you a replacement and ask you to ship your phone into the box your new phone came in.
Either way I would think that it is the battery especially with your phone overheating while charging Of courses there are cases where the plug or cord is at fault so you might want to give those options a try as well.

L1qu1d said:
I think in most cases (i don't know AT&T) they send you a replacement and ask you to ship your phone into the box your new phone came in.
Either way I would think that it is the battery especially with your phone overheating while charging Of courses there are cases where the plug or cord is at fault so you might want to give those options a try as well.
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I might want to try that option (get a new phone) despite them sending me a battery first. I'll call them back.
My phone has about 15% left (I turned it off after I realized I couldn't charge it for troubleshooting purposes). I notice now that the phone gets really warm (around the camera flash) when on. This is without it being plugged in and only turned on.
I've tried 2 other chargers (A Griffin and a Belkin that I use for my other phones for work) and none of them charge my GS4. When I plug it into my Motorola Droid Razr (work phone), it charges that just fine. This is really frustrating. Any other weekend would be fine, but it's the freaking 4th of July weekend and I won't have a phone for the entire holiday.
Thanks man, going to call AT&T to see if I can sweet talk the rep to just send me a new phone. The battery is scheduled to come Friday, so maybe they can ship the phone that quickly.

Faluzure said:
I might want to try that option (get a new phone) despite them sending me a battery first. I'll call them back.
My phone has about 15% left (I turned it off after I realized I couldn't charge it for troubleshooting purposes). I notice now that the phone gets really warm (around the camera flash) when on. This is without it being plugged in and only turned on.
I've tried 2 other chargers (A Griffin and a Belkin that I use for my other phones for work) and none of them charge my GS4. When I plug it into my Motorola Droid Razr (work phone), it charges that just fine. This is really frustrating. Any other weekend would be fine, but it's the freaking 4th of July weekend and I won't have a phone for the entire holiday.
Thanks man, going to call AT&T to see if I can sweet talk the rep to just send me a new phone. The battery is scheduled to come Friday, so maybe they can ship the phone that quickly.
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I'm not the biggest tech guy when it comes to phones but I think around the flash area is where the battery connectors are (where they make contact with the phone), so that might result in it getting warm. Although with you not charging it it can still be the battery being faulty.
I would call them back and try to exchange the full phone just to be on the safe side. I still think it is the battery but if your under warranty why let it go to waste?

This happened to me with an HTC Sensation back in 2011. They sent me another battery and it still did this. This could be a common defect among logic boards. Anyway, I get a warranty replacement right away. In your case, it won't matter what rom your using, it will always do this.

L1qu1d said:
I'm not the biggest tech guy when it comes to phones but I think around the flash area is where the battery connectors are (where they make contact with the phone), so that might result in it getting warm. Although with you not charging it it can still be the battery being faulty.
I would call them back and try to exchange the full phone just to be on the safe side. I still think it is the battery but if your under warranty why let it go to waste?
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MattMJB0188 said:
This happened to me with an HTC Sensation back in 2011. They sent me another battery and it still did this. This could be a common defect among logic boards. Anyway, I get a warranty replacement right away. In your case, it won't matter what rom your using, it will always do this.
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Thanks guys. I did what you said on Wednesday and AT&T is sending me another phone. Should arrive sometime today. My phone's been off for 3 days now. But with about 10% charge left, I'm curious about something.
Do you have suggestions on how I can make a backup/copy my settings from my old phone to the new one? Remember, my port isn't working. So not sure if this is even possible.

Faluzure said:
Thanks guys. I did what you said on Wednesday and AT&T is sending me another phone. Should arrive sometime today. My phone's been off for 3 days now. But with about 10% charge left, I'm curious about something.
Do you have suggestions on how I can make a backup/copy my settings from my old phone to the new one? Remember, my port isn't working. So not sure if this is even possible.
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Click to collapse
Best bet would prob be to see if you can get an app quick that backs up everything onto the SD card and swap the SD cards when the phone arrives. Or manually back up what you can to SD (pictures, songs etc) using apps like ES manager etc

PLEASE! Im experiencing same issue with my phone, any solution?

I purchased a defective sgh-i747m (Canadian version of the s4) and, when I connect the phone to as charger, the area where the charging cable connects to the motherboard gets extremely hot. When I try to boot the phone with a good battery, the Samsung logo appears, then the phone turns off. Can't seem to get the phone to charge the battery without getting really hot. Only solution I found was changing the motheboard.

i just got this problem today and a bad time because im leaving in a week, but i decide to leave with out a battery for a couple days see if that does anything

New battery issues: can't calibrate, only boots via bootloader, won't complete reboot

Hi all, first time poster.
My Nexus 4 has been displaying behaving wacky. I've tried searching a ton, but can't find any posts with this collection of symptoms. Here's the story, please bear with me.
Two days ago I replaced the battery, left it charging all night, next morning it still would not boot. Every time I would just get the flashing red light. The only way it would boot was if I held volume down + power for 15 seconds, at which point inserting the micro USB cable would get the bootloader up. From there I could boot to android, but it would turn off as soon as I unplugged.
Charging it wirelessly made the battery hold charge, but still it would only boot if I did the 15-seconds-then-cable trick and chose "start" from the bootloader, or help volume Up +power. Simply holding the power button makes the phone vibrate three times and then show the flashing red light.
Once in Android, it would charge via USB and wireless. Debugging, etc. was also working. But if turned off, charging via USB gives the red light, and charging wirelessly doesn't show the white charging icon. Once back in Android, the battery indicator is all over the place, from 98% to 80% to 64%, back to 80%.I've tried calibrating, running the battery down and charging to full, but no change.
Now, every time I send a reboot command, from Android, fastboot, adb, bootloader, recovery, anywhere, the phone turns off but doesn't boot. I have to boot it manually.
At this point I went back to stock, using factory image (flash-all), and even during this I had to boot manually every time the script was <waiting for device>.
After a few more wipes and roms, I settled on Chroma (stock kernel, radio).
The system is running fine, but all the issues explained above persist.
Any ideas getting the battery to read properly? And what's with it only booting via bootloader or volume up + power. How about charging while off?
Thanks in advance for your help.

Sounds like the battery is defective or something went wrong during the battery replacement.
The red light flashing when connected to a charger indicates that the battery is fully discharged.

audit13 said:
Sounds like the battery is defective or something went wrong during the battery replacement.
The red light flashing when connected to a charger indicates that the battery is fully discharged.
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Thanks for the reply.
The phone charges (seemingly) normally when it's on, USB or wireless. But even at full battery, if I try to charge it via USB (computer or wall), I get the flashing light and no charge. Wireless works.
What could have gone wrong during replacement to cause this? Me actually messing up the hardware, shorting something?
My only option now seems to be buying another battery and testing whether it behaves differently.

Does the old battery work at all? If it does, you could try putting back the old battery.
Where did you get the replacement? I know that new oem replacement batteries are very difficult to obtain.

The old battery was totally shot. I bought the new one off of Amazon, but yeah total crap shoot if it's any good until you install it.
I'm just trying to rule out possible firmware and software issues before I gamble on another one.
So you think a dud battery could cause all of this stuff, from charging to booting issues?

Yup, I think it's is the battery. According to many people, the batteries on Amazon are not oem.

audit13 said:
Yup, I think it's is the battery. According to many people, the batteries on Amazon are not oem.
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So, I'm just going to return this one and try to get a legit OEM.
For those on the same boat as me: I contacted LG United States and they directed me to https://www.encompass.com/ for parts.
They were not able to find the battery based on phone information, so I gave them the code printed on the actual battery I removed, EAC61898601 LLL. The battery cost US$28 plus $8 shipping (not the $9 I paid on Amazon). It's currently on a 5-day back order, not terrible I suppose.
I'll update here when I've re-replaced the battery.

Hi @dreamsignals. Did you receive and install the battery? How did it go?
I'm at the point where I need a new battery too, and I'm hoping you found the real deal and the install went well.

witnit said:
Hi @dreamsignals. Did you receive and install the battery? How did it go?
I'm at the point where I need a new battery too, and I'm hoping you found the real deal and the install went well.
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Still waiting for it to arrive. There seems to have been a delay. I'll update here.

dreamsignals said:
Still waiting for it to arrive. There seems to have been a delay. I'll update here.
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Sounds good. Finding and obtaining a legit battery for this phone is a bit of a monumental feat. Seems like installing it is the easy part in comparison

witnit said:
Sounds good. Finding and obtaining a legit battery for this phone is a bit of a monumental feat. Seems like installing it is the easy part in comparison
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It seems you were totally right. I've got nowhere closer to getting a new battery that actually works. All dead-ends so far...

dreamsignals said:
It seems you were totally right. I've got nowhere closer to getting a new battery that actually works. All dead-ends so far...
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Much appreciated for the update. I haven't found a place to buy a battery yet either that I feel would be the real deal. Will report here if I do.

witnit said:
Much appreciated for the update. I haven't found a place to buy a battery yet either that I feel would be the real deal. Will report here if I do.
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Believe or not, the OEM I ordered the battery from back in November called me a couple of weeks back to say they finally had it in stock. Alas, it got lost on the way and never arrived. Waiting for a second shipment now. It's like a bad drawn-out joke, ha.
Anyways, it's back in stock if anybody is looking. I can't yet give feedback on whether it works. https://www.encompassparts.com/item/10742494/LG/EAC61898601/Rechargeable_Battery,lithium_P

dreamsignals said:
Believe or not, the OEM I ordered the battery from back in November called me a couple of weeks back to say they finally had it in stock. Alas, it got lost on the way and never arrived. Waiting for a second shipment now. It's like a bad drawn-out joke, ha.
Anyways, it's back in stock if anybody is looking. I can't yet give feedback on whether it works. https://www.encompassparts.com/item/10742494/LG/EAC61898601/Rechargeable_Battery,lithium_P
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We'll all be retirement age by the time these batteries arrive ; )

Maybe pin 2 battery connector broken. What is the battery temperature in ampere app ? When pin 2 broken not showing correct percentage and battery temperature. If can't read battery temperature or percentage correctly, phone can only boot via bootloader. Posibble you broken battery connector jack motherboard phone when disconnecting old battery. Or it's problem only new battery (inside battery or battery connector flex cable). Try to push battery connector by finger and hold, if percentage showing ok, you are broken pin 2 on motherboard phone and must been repair by professional. Watch this video
https://www.youtube.com/watch?v=ssOsIbk8R-c

having the same problem with a battery I just got replaced. Wish I read here before installing a new one
Didn't knew that Nexus detects where is an original battery or not. I guess it's not. Damn....

dreamsignals said:
Believe or not, the OEM I ordered the battery from back in November called me a couple of weeks back to say they finally had it in stock. Alas, it got lost on the way and never arrived. Waiting for a second shipment now. It's like a bad drawn-out joke, ha.
Anyways, it's back in stock if anybody is looking. I can't yet give feedback on whether it works. https://www.encompassparts.com/item/10742494/LG/EAC61898601/Rechargeable_Battery,lithium_P
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Click to collapse
Sorry to revive an old thread,
Did you ever recieve the battery? How is it? What's the date code on it?
I wonder if these batteries are re manufactured or pulled from recycled phones.

Won't turn on, no lights, but warms up when plugged in.

As the title says, Phone won't turn on. There are no led lights at all. It does get warm after being plugged in for a little. I had jrkruse's hybrid_bra1 stock safetynet samsungpay...... rom on it. It was rooted. Very minimal processes running. I actually had basically everything stopped and greenify on. Phone was around 40% battery. I plugged it into charger, took my dog outside, showered real fast, washed a few dishes, then came back in to room within 15 minutes to my phone being dead and hot. It's never got this hot before even while rooted and plugged in with this rom on it. I have never had it get that hot. Was just formatted the day before and really bare but, that is what happened.
A couple battery apps I had put the batteries remaining life capacity at around 60%. It held a charge poorly. Even for 60% capacity it felt weak, considering how little I did on it lately. I am thinking the battery may have took a crap but unsure because it warms up when it is plugged in. I plan on getting a battery soon since they are inexpensive and replace it to try it out.
Just wondering if anyone here has any experience with this and can offer any advice.
Thank you in advance.
(I looked for a min or two for similar posts but didn't find much. Will gladly take down if someone can point me the way)

You say your battery was already outworn, It may have died. I think you should try with a new battery, Or take it to a technician who can test the phone's hardware to see if there is anything else broken
i've only had one similar case with an s3, which would turn of at random % of battery. But when plugged turned on. I replaced the battery and it worked fine then

Maxissc said:
You say your battery was already outworn, It may have died. I think you should try with a new battery, Or take it to a technician who can test the phone's hardware to see if there is anything else broken
i've only had one similar case with an s3, which would turn of at random % of battery. But when plugged turned on. I replaced the battery and it worked fine then
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I really do hope that is what's wrong. I just ordered a battery. Thanks for the reply. I also got some little tools and battery door adhesive sticker. Wish me luck!
funny story....
The mic in my Nubia Red Magic broke and I sent that back to hong kong for repairs like 20 days ago. Before the Red Magic, I used this galaxy s7 edge my friend gave me. I gave it back when I got the Red Magic and told him to sell it or something. Not much later, decided to buy it back off of him for $200 to give to my mother. She loved it. I had the gs7 edge with me exploring prepaid provider options for my mom when the Red Magic mic broke. So then I decided to borrow the edge from her till my phone got back and few days later I break this one too..
I feel naked without a phone for so long haha

Zombiebeaver said:
As the title says, Phone won't turn on. There are no led lights at all. It does get warm after being plugged in for a little. I had jrkruse's hybrid_bra1 stock safetynet samsungpay...... rom on it. It was rooted. Very minimal processes running. I actually had basically everything stopped and greenify on. Phone was around 40% battery. I plugged it into charger, took my dog outside, showered real fast, washed a few dishes, then came back in to room within 15 minutes to my phone being dead and hot. It's never got this hot before even while rooted and plugged in with this rom on it. I have never had it get that hot. Was just formatted the day before and really bare but, that is what happened.
A couple battery apps I had put the batteries remaining life capacity at around 60%. It held a charge poorly. Even for 60% capacity it felt weak, considering how little I did on it lately. I am thinking the battery may have took a crap but unsure because it warms up when it is plugged in. I plan on getting a battery soon since they are inexpensive and replace it to try it out.
Just wondering if anyone here has any experience with this and can offer any advice.
Thank you in advance.
(I looked for a min or two for similar posts but didn't find much. Will gladly take down if someone can point me the way)
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I have the same rom, with charging issues. I don't think its the rom causing it. The s7e are getting old and the batteries are taking a toll with the age. My phone will charge up to 81 at night and stay there. I get better results with wireless charging so i just top my phone off during the day with my wireless charger. There is a code to reset the battery's internal memory, if i find the link on how to do it I will post here for you.

Fear_The_Fluff said:
I have the same rom, with charging issues. I don't think its the rom causing it. The s7e are getting old and the batteries are taking a toll with the age. My phone will charge up to 81 at night and stay there. I get better results with wireless charging so i just top my phone off during the day with my wireless charger. There is a code to reset the battery's internal memory, if i find the link on how to do it I will post here for you.
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Thanks for reply and alright let me know if you find out. My phone had no problem charging to 100% Its just the 100% on the status bar wasnt 100% of the 3600 capacity from wear. My friend's also does the same thing as yours except his he cant charge more than like 24% haha. He just uses it as a plugged in music player in car.... I am getting battery in the mail tomorrow and will see what I can do.

Zombiebeaver said:
Thanks for reply and alright let me know if you find out. My phone had no problem charging to 100% Its just the 100% on the status bar wasnt 100% of the 3600 capacity from wear. My friend's also does the same thing as yours except his he cant charge more than like 24% haha. He just uses it as a plugged in music player in car.... I am getting battery in the mail tomorrow and will see what I can do.
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Try this: https://forum.xda-developers.com/showpost.php?p=74268596&postcount=4
I have not done it because it requires draining the battery and I never get around to doing that. Hopefully it will help you out. Good luck!

Fear_The_Fluff said:
Try this: https://forum.xda-developers.com/showpost.php?p=74268596&postcount=4
I have not done it because it requires draining the battery and I never get around to doing that. Hopefully it will help you out. Good luck!
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A little late, sorry. lol.
Thanks for suggestion, however, I may have worded my statement incorrectly. I meant to say that My phone would charge to 100% and the status bar displayed it as 100% but, the health and total capacity of the battery in mah was not the maximum 3600 or so due to simple wear and tare. It isn't apparent within any stock android feature however, battery monitoring apps like accubattery gather statistics after several charging sessions and estimate the current mah capacity. Mine was much lower than the default oem stated value of 3600. So my battery could be charged 100% but the 100% is really only 2400 mah lol. It was obvious either way by noticing that after my time using it and the previous owner's bad charging over night habits, that the battery was gradually needing charged more often lol..
I did read about the calibration method before when I was first looking into the battery issues. It seems it is more often done after a new battery is installed.
I screwed up a new battery install at the last second. I had to stop due the tiniest little round metal piece coming off from a very light swipe of my plastic spudger.
It was a very small wire connector piece. Unbelievably irritating. I didn't even finish because I doubt it would work properly. I beleive it is for the rf cable or something not sure. The red one on the left bottom side of the logicboard/motherboard whatever. There are three of them.
I took it apart and put it together a couple times prior to this and in a hurry it popped off and I couldnt find it. I couldnt find out the exact part name online so I could buy one and solder it back on. I did find a site/ supplier that has a plethora of them though. They are tiny coaxial connectors/pins. I didn't look through them all but there are 6,000 some listed under coaxial connectors (RF). https://www.digikey.com/products/en/connectors-interconnects/coaxial-connectors-rf/437?k=coaxial pin
I haven't gotten around to asking samsung or the digikeys support if they could help me find out which it is. They have different sizes and frequency ratings or speeds and such. The phone is packed away until I manage to figure out which pin to buy or if I pull 80$ or so out of my behind and buy a whole new motherboard logic board haha.