Database Users

[Q] Battery going bad?

I was originally running PA3.98. A few months back my son dropped my tablet while it was charging, it ended up landing on the cable and split the micro-usb end away from the plastic support.
Since then it seems my battery had been draining much faster than usual.
I installed better battery stats, and at the time it appeared to me to be a game my son and I played often (Arc Redux) which left an orphaned media server process and caused the drain.
I installed m-kernel and did the suggested trickster tweaks. This brought some new life into my tablet, but the screen on time was still extremely low, like 48 minutes of screen before I had to charge. Online game or not, wifi and sync on or not. Something was messed up.
But before I could figure it out completely, my son messed my tablet again. He pulled the charging cable out by the cord not by the thick part on the end of the plug, and this was an older cord too, a little jenky. And I mean he pulled it out. I didn't see directly what happened but the end of the usb cord was split open and the micro part of it was "missing." Later my son "found" the micro end. I had to threaten him with never using my tablet again before he admitted he was the one that pulled it out, quick and fast, by yanking on the cord and not by carefully pulling it out by the thick end.
But now... my tablet was not booting past the PA splash screen. Luckily I could get to TWRP. Dirty flash didn't fix the bootloop. I couldn't do a NAND, nor could I backup to my PC over ADB, even though my PC saw the tablet, the backups were 0bytes. So I am pretty sure by him pulling the cord out like that it had to have shorted and corrupted my memory.
I ended up needing to do a fresh clean install, and this time I went with SlimKat. I also had to take the back cover off the tablet and bend the usb charging port back in, it was split open a little and no cable would fit snugly in there.
Fresh flash well and my tablet was working again.
But the battery life was/is still atrocious. Can't get much more than an hour of screen time. Regardless of if I am playing an online game, an offline game, reading an e-book or whatever. Something was still wrong, and on a clean install.
And even more curious, it was now reporting what appear to be random battery percentages. Meaning it will go from 75% to 50% and back, randomly. I installed better battery stats, disable critical shutdown (x-posed), trickster mod (and m-kernel a67) and some others I cannot remember off the top of my head. Greenify pro.
I "fully" charged it overnight 2 nights ago. My plan was to let it drain on standby (wifi and sync off) with minimal use until it died. And I was peeking, periodically, to see if anything strange was happening.
And I came across this....
Does anyone know if I just need to fully charge it and then let it completely discharge with no safe shutdown a couple of times to calibrate the battery correctly? Or is it worse, is it more likely that my battery is going bad and needs to be replaced?

Really? Nobody has any comment on my screenshots?
Take a close look, peeps.
It went from ~20% to ~40% without me charging it.
It climbed earlier too, from ~60% to about 70%.
Seriously, nobody else's nexus has ever done this?
I am at a loss and I was hoping some nice people here could help brainstorm what is going on.

From your original post, if there was damage to the USB port on your tablet the battery may be shorting out on one of the contacts. That could cause random fluctuation in the battery level and longer charging times.

riggerman0421 said:
From your original post, if there was damage to the USB port on your tablet the battery may be shorting out on one of the contacts. That could cause random fluctuation in the battery level and longer charging times.
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TY for the response.
I thought that may be part of the issue. It does seem like it charges slower.
It may just be my selective memory but I do not remember ever seeing the battery percent jump around when it is charging. Since the last clean flash it has only jumped upward. I've not seen it jump to a lower percentage but it has been doing random battery low shut downs. Anywhere from 30% to 2% battery remaining, no low warning, just shutting down.
I just hope it is something I can deal with.
______
I took the back off the tablet and cleaned all of the contacts at the charging port. -- I had to bend the port back into place, it looked like it was bent slightly open. I used my lighted magnifying glass to look at the leads and they are all fine as far as I can tell, no shorts on the contacts at least.
The battery is seated snug. The battery plug is in flush, I reseated it anyway.

Battery percentage doesnt increase

My Micromax phone(Yureka Plus) has been having a few charging problems lately. First let me list the problems that i have seen, and diagnose it as much as i can on my end.
The battery shows the charging indicator but the percentage doesn't always increase.
When I pull the battery the percentage changes at times-increases or decreases,but this doesn't always happen.
The phone sometimes refuses to charge entirely, and it takes multiple tries to get it to do so.
Also very rarely the after switching off the phone and charging it, the screen suddenly starts flickering blue-and only can be fixed by pulling the battery(Happened twice so far)
It shows particular resistance to increase in charge,especially beyond the 70% range-its practically impossible to get it to 100%
When I connect it to a laptop,it does get recognized and i am able to access the files on it(However there seemed to be problems when using an OTG, cant confirm ATM)
When using the phone while charging it either discharges or remains at the same percentage,usually the former.
Its not a software issue as i havent updated the phone in the past month, and the problems began about 2 weeks ago
I have changed cables,power sources and tried to recalibrate the battery-none of them worked.
The problem may or may not be connected with the following-The day before the issue started i was cleaning the phone using water.
I did find some amount of water in the case, but it hardly was enough and none of it seemed to be there near any electrical components
I cleaned the usb port,battery connectors, pins,and did a visual inspection, nothing seemed out of place.
The water damage indicator of the phone seems to be normal.
However the battery does spin-only on one end though...it doesn't spin on the other end.
Thus i am not sure if its a sign of battery damage or just how its manufactured...I think that swelling should be universal and not discriminate between sides.
Unfortunately i will not be able to give the phone for repair/buy stuff as i am out of town for about a week
Is it just a bad battery or something more serious? Like a problem in the logic board or something?

Empty Battery Experience

Hello
Yesterday, I drained the battery of my Yotaphone 2 completely, and it would not wake up again, not even when plugged in.
I think what happened is that it had difficulties with the charger, it would start charging for a bit, then stop, and soon start again. Overall, that must have drained the battery.
With the battery empty, the phone would not start, and therefore it would not charge the battery. It was just dead.
Luckily I managed to rescue it, but that was a bit more difficult than it should be. I had to open the case (which is luckily not too difficult, but a bit scary), and disconnect the battery. Then the phone would charge, and after reconnecting the battery, everything was going fine.
The phone is now completely charged and working fine again, but I will be careful not to completely drain it in the future.

I started to have the same problem. The phone would charge a little bit, turn on, then stop charging and turn off, charge a little bit.....
I managed to enter the recovery menu, charge the phone for sometime and reboot.
I made a factory reset but the problem still continues once the charge drops below 15% or so. It would say it is charging, chargers light turns on but the battery drains.

Maybe it also sort of problem that i experience... since it is dead for some time maybe reconnecting tha batt resurect it... but i have not got tools to open it - i will let it do by some sort of service points - even if it not fix it I also have broken YD201 for mobo swap.

No tools required - I just used my fingernails. If you want something slightly stronger, get a guitar pick. There are also proper tools with a handle etc.
At the end of the day, this seems to be a design problem with the charging circuit. Usually, it would wake up once you connect power, but it did not do that in my case.
Try to fix it sooner rather than later, otherwise the battery might need replacing.

A mix of mechanical and ROM questions

2018 may be late in the game to become a new owner of a OnePlus 2 phone. But here I am. My main phone at present remains a Samsung Note 4, and I'm trying to get a feel for how this old (but not as old as the Note 4) phone can be repaired. My issues are a mix of battery, possible circuit board, and other problems / eccentricities.
The phone was given to me non-working. I have a minor-league reputation for rescuing phones, so thought I'd try this one.
First, I had to get it up and going. Nothing worked initially. I wasn't delighted to find out the battery is only accessible after removing two covers and about 30 microscopic screws. I reset it by pulling the small "plug" at top center-right and the phone decided to allow me to boot. I immediately (per instructions I found elsewhere here) went to fastboot and wiped the cache.
I did manage to install TWRP and the latest (as of a few days back) version of Lineage 8.1. But then the problems began again. The phone would suddenly, after charging for a while (and reporting a battery that was nearly charged), shut down. No charging icon showed on the screen.
Fast foward. Today, I got a cheap knock-off battery in the mail. It intially worked and I got it nearly charged. But after more spontaneous reboots I noticed something odd; in TWRP, the battery said only 50% charged while in Lineage it said 97% charged. So once again I wiped the cache and this time the ART/Dalvik cache as well (pointless, but ya never know).
This did get the two percentage reports matching up. And initially it got the phone working again. But alas, once again, the phone started the shutting down.
Currently, I'm leaving it overnight to charge - if in fact it is charging (how does one tell)? If that doesn't work, I'm thinking about using Odin to totally reflash the original version of the operating system.
Any other ideas or input - including laughing at me for bothering with this - is permitted.
I will say that the engineering of this phone compared to the older Note 4 leaves the Note easily the winner; to take its battery out is a matter of 20 seconds. Really not impressed with my OnePlus experience so far...

Thought I'd update things. After spending a day on sites (here and on the official OnePlus community boards) I tried any number of fixes. I'm reasonably convinced the only way to somewhat consistently start my particular OnePlus 2 phone is to:
1. Open it up, thus voiding the warranty (hehehe.... by now that's void anyway).
2. Unplug the battery's small plug at upper right-center of battery (a fingernail works fine, but do make sure the phone isn't plugged in!)
3. *Leave the back off* or at best gingerly snap it on but without attaching the screws. (Every time I did so, even after extensively using the phone while it lay on my sofa's arm and rebooting it numerous successful times previous to replacing the screws, the phone refused to reboot.)
4. I also cleaned the usb c socket with a wood toothpick and was a little surprised at how dirty it was; I did the same in a minimal way to the battery contacts.
5. I found no real use to having the actual OnePlus charger; I used it a bit but my best results came from the Samsung charger and a new (though cheap) usb c cable I nabbed via ebay.
Today I did get the phone going and intentionally wiped Lineage and installed the latest (2017) version of the OnePlus2 official os. It went on fine. I rooted it, installed apps, and (as mentioned) repeatedly shut down and restarted the phone, which promptly restarted with only a 3 second lag. I did this 5 times because one thread I found suggested this was an official OnePlus suggestion. (I rolled my eyes but did it anyway.) Played with the phone a bit, then shut it down again and screwed the back on. As noted, the phone suddenly wouldn't turn on again.
In summary, I'm not sure if this phone can be meaningfully resurrected. If I knew where what may be a short in it was, I could possibly replace that part. But I have little idea and am not quite the geek enough to sort that out. I am guessing at a short because without the lid or screws, it wants to work. It wants to be a good phone for me and I'll keep toying with it for a while longer.
Any suggestions appreciated.

Third post is a question for others:
Has anyone else experienced their OnePlus 2 working fine *without* the back cover screwed on, but as soon as it was screwed on the phone stopped working and wouldn't start again? And, if so, did they ever sort out why?
I'm going to make this a separate discussion.

Hey. I experienced the same symptoms with a "official" replacement battery I found online. Random reboots over and over again until I couldn't even turn it one anymore.
TWRP was always showing different battery percentages than OS.once I put back in my old but original battery that came with the phone it turned on again and it works flawlessly again.

maikl91 said:
Hey. I experienced the same symptoms with a "official" replacement battery I found online. Random reboots over and over again until I couldn't even turn it one anymore.
TWRP was always showing different battery percentages than OS.once I put back in my old but original battery that came with the phone it turned on again and it works flawlessly again.
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This is something I've read, and may well do. It also, however, raises another thorny set of issues re battery calibration. I understand that sometimes new batteries have to be "calibrated" by being charged, discharged completely, charged again, discharged completely, and charged yet again and discharged. After that, things are supposedly going to run right. Trouble is in my case, the phone doesn't want the battery; it keeps stopping completely and not restarting. Either the battery stats are wholly inaccurate (says around 57% charged during those brief times I've had it up) or I need to go with your idea. Trouble is there the original battery from this phone is dated 2015; I hope it has anything at all left to give.

shonkin said:
This is something I've read, and may well do. It also, however, raises another thorny set of issues re battery calibration. I understand that sometimes new batteries have to be "calibrated" by being charged, discharged completely, charged again, discharged completely, and charged yet again and discharged. After that, things are supposedly going to run right. Trouble is in my case, the phone doesn't want the battery; it keeps stopping completely and not restarting. Either the battery stats are wholly inaccurate (says around 57% charged during those brief times I've had it up) or I need to go with your idea. Trouble is there the original battery from this phone is dated 2015; I hope it has anything at all left to give.
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Click to collapse
Mine is dated 2015 as well and I'm getting through the day with closely 3 hours of SOT.

maikl91 said:
Mine is dated 2015 as well and I'm getting through the day with closely 3 hours of SOT.
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I'm trying this in desperation. The phone has gone completely unresponsive at this point, and I'm looking at having a technological paper weight. Hope I can resurrect it but the odds are not good.

Some progress, some regress.
Here's what I'm seeing. I can get the phone up and running again after extensive recharging. As long as I leave the back of the phone off - that is, both the inner and outer backs - it seems willing to keep running. As soon as I snap the inner back into place, not even with the screws yet, the phone locks up. Soon after, around 10 to 20 seconds, it shuts off. Sometimes it will restart and other times it won't for a long time, even after unplugging and replugging battery.
Has anyone else run into shorting or grounding issues associated with the back (inner, the one w/ 18 screws) case?

I am now back to a dead phone. A new (3rd party) battery is my current hope... charging it for over a day now has not yet led to the phone showing any sign of life.
One other question: I know both this cable and charger work, but as they are not the "original" OnePlus charger / cable combo, could that be the difference? I'd appreciate it if there is any clear evidence regarding this question.
The below article raises a disturbing possibility, based on the reality that OnePlus cables and chargers are - by OnePlus' own admission - non-standard and possibly could harm other electronics. But on top of that, and not well explored in the article, is whether or not OnePlus' charger/cable combo might even be damaging to the OnePlus 2 (and other OnePlus phones). They "assure us" this is not the case. Hmm.
https://www.androidauthority.com/oneplus-responds-to-bad-usb-type-c-cables-658048/

I thought I'd update this thread with what may be the final installment.
I invested $70 in a highly bent but somehow still working second OnePlus 2 phone off ebay. (The guy had a great fall on a log story as to how the phone got bent.) Long story short... I gambled and won. That is, I gambled that the innards of the second phone would go into my first phone and that the first phone's screen would work. YES. And so, after playing amateur phone repairman, I have myself a OnePlus 2.
So many questions. Going to peruse this board now...

Essential Phone keeps powering off

Hello everyone my brother's Ph-1 keeps shutting down right after powering up, I have tried everything from factory resetting to trying a different charger, nothing seems to work. This happened after he didn't use the phone for almost a month, it worked perfectly before.
It powers off even when on charge or connected to the laptop.
The phone doesn't stay on for more than a minute or two which means i cannot use ADB to side load an update
The phone is running Android P and the April security update patch.
Please do help me out
Thanking you

Kalasingha said:
Hello everyone
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Click to collapse
Hello everyone

Kalasingha said:
Hello everyone my brother's Ph-1 keeps shutting down right after powering up, I have tried everything from factory resetting to trying a different charger, nothing seems to work. This happened after he didn't use the phone for almost a month, it worked perfectly before.
It powers off even when on charge or connected to the laptop.
The phone doesn't stay on for more than a minute or two which means i cannot use ADB to side load an update
The phone is running Android P and the April security update patch.
Please do help me out
Thanking you
Click to expand...
Click to collapse
It could be corrupted though it sounds a bit like a battery issue, to me. If battery discharges too much eg it didn't shut down itself properly when battery was at a low level (they retain more charge than shown to user so it can shut down with proper procedure) & the battery ran down past it's reserve the battery may not be able to be recharged with a normal charger even though you charge it. (Thought a battery specialist could possibly revive it with a boost charge, though I've only seen these used with industrial batteries)
with a "dead battery bootloop" sometimes you can get it going by booting when connected to the charger, but you'll probably need a new battery. Maybe also try boot into safe or recovery mode when connected to Essential charger. (I'm assuming your phone not corrupted, though as you haven't given us much info about exactly what happens & what you are seeing)

IronRoo said:
It could be corrupted though it sounds a bit like a battery issue, to me. If battery discharges too much eg it didn't shut down itself properly when battery was at a low level (they retain more charge than shown to user so it can shut down with proper procedure) & the battery ran down past it's reserve the battery may not be able to be recharged with a normal charger even though you charge it. (Thought a battery specialist could possibly revive it with a boost charge, though I've only seen these used with industrial batteries)
with a "dead battery bootloop" sometimes you can get it going by booting when connected to the charger, but you'll probably need a new battery. Maybe also try boot into safe or recovery mode when connected to Essential charger. (I'm assuming your phone not corrupted, though as you haven't given us much info about exactly what happens & what you are seeing)
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The phone shuts down even when in recovery or safe mode whilst connected to the charger.
It does sometimes fully boot up and then shutdowns, but mostly shuts down while still on the essential logo.
If I may ask what do you mean by the phone might be corrupt?
Can one month of non usage cause the battery to die out?

Kalasingha said:
The phone shuts down even when in recovery or safe mode whilst connected to the charger.
It does sometimes fully boot up and then shutdowns, but mostly shuts down while still on the essential logo.
If I may ask what do you mean by the phone might be corrupt?
Can one month of non usage cause the battery to die out?
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by corrupt I mean some data that is part of the boot process causes bootloop so it shuts down, but as your phone is shutting down at different points in boot cycle I think it's probably battery
Leaving the phone turned off unused for longish periods should not be a problem normally even with a few % left in battery. And even if left turned on it should shut itself down when battery low & be able to boot up again after a month due to the battery "reserve" capacity (but possibly a month was too long). And if it was not recharged straight away and/or rebooted multiple times the battery "reserve" could fall too low and not have enough power to start/shutdown properly (possibly causing data corruption ... though l don't know if there is some sort of fail-safe boot procedure ) Then there is a possibility there is a hardware fault with battery/phone that meant battery lost too much power.
There were some tricks ie "boost charge" you could do with removable batteries that were in "deep sleep" as shown here for example
https://m.youtube.com/watch?v=TEXA7qIJ968
But they don't really work without taking your battery out (for us we might as well get a new battery when opening phone up, & there would be some risk that you damage battery as we do not know the exact charge to apply on this battery, which could cause unsafe battery) I wouldn't want to freeze my phone even though it should survive OK, as I'd be alittle concerned about long term effect on our screens small pixels (I remember the guys at popular mechanics put an old flip phone with little LCD screen in liquid nitrogen & it still worked after being warmed up!).
See https://batteryuniversity.com/learn/article/low_voltage_cut_off
for more tech details

firmware issues do not cause the issue you are describing
you have a hardware problem
sounds like a bad battery to me
good news is the battery is not difficult to replace (don't listen to ifixit I am not sure what they where smoking when they did there tear down)
https://www.youtube.com/watch?v=BCKxAQXdTJ8
don't bother with silly and wrong tricks like trying to hack the battery back to life its the wrong way todo
if the battery ever gets to that point then the battery is bad enough said

Legitsu said:
don't listen to ifixit I am not sure what they where smoking when they did there tear down
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So true! )) As much as I respect the guys from iFixit, they screwed this one up pretty badly - basically, made a tutorial on how to destroy your phone. Fixez.com did much better.