Develop Bugs

[Q] Battery not fully charging problem

I have a battery / charging problem on my Gnex. The problem is that the battery won’t charge more then 60 %, drains quick and then the phone shuts down at 0 % ( in about 2-3hrs of use) and wont restart until recharged.
At first, I tought it was the battery so I bought one OEM on ebay. It did the same thing so I returned it and went to Telus store to buy an OEM.
Same thing happened with the new OEM. I then bought an external wall battery charger and charged the 2 batteries I have. When I put the first one back in the phone it said 12%?
I tried the second one which is the new OEM and same thing, its showing 12%.
I did a little test, I had 4.2.2 so I unlocked the phone and rooted (no more warranty anyway) I flashed back the ROM to ICS. No change.
So what I did next is I used the phone until it shut down at 0% and restarted it on the bootloader screen and left it on, on the bootlooader screen.
Well the phone screen stayed on for more then 3 hours, so I know the battery is good because there is no way that a 0% battery could power the screen for 3 hours.
So after it shut down from the bootloader screen, I charged it again, in the phone, and it went right back to 60%, I did try to wipe batt stats from recovery mode and battery calibration apps but no luck.
Is there a way to disable the auto shut down on the phone? The battery meter if definitely showing wrong charge stats. Is the battery controller part of the USB board or the motherboard?
The only thing I did not try yet is a custom ROM and Kernel.
Any ideas?

Sounds like a hardware failure... It's obviously not the batteries
Sent from my Galaxy Nexus using xda app-developers app

I found where the Power Management with Switch Mode Charger chip is, on the motherboard! I wonder if there is some ways to access and modify the values of this.

jackpot554 said:
I have a battery / charging problem on my Gnex. The problem is that the battery won’t charge more then 60 %, drains quick and then the phone shuts down at 0 % ( in about 2-3hrs of use) and wont restart until recharged.
At first, I tought it was the battery so I bought one OEM on ebay. It did the same thing so I returned it and went to Telus store to buy an OEM.
Same thing happened with the new OEM.
Click to expand...
Click to collapse
For what it's worth, the same thing is happening to me. Charges to 64%, and it acts like it's only got a 64% charge - runs out fast. And I also tried a replacement OEM battery with no difference. I'm not completely convinced this is a hardware problem - though I guess it could be. I'm still stock Gnex (with the 4.3 upgrade - and come to think of it, this started some time after that upgrade). I was hoping it was some kind of kernel problem that i could fix by switching to CM. Anybody have any luck with that?

The same thing is happening to my phone, although I'm lucky enough to have it charge to 73%. Only realized the problem when I bought a new OEM battery and it stopped charging at the same 73%. I have a friend who has the exact same phone and will give her both my batteries to charge and see the results (with her phone then once batteries are reinstalled in my phone).
Outside of replacing the motherboard, would anyone know if there could possibly be a software fix? Has this happened to any other phone? If so does anyone know the results?
Thanks,
Stefan

My gt s6312 has charging issue. It never charge over 67-69% in my phone. I checked the battery in other phone its ok.....please help.....
Sent from my GT-S6312 using XDA Premium 4 mobile app

Sounds like a hardware failure in the phones' charging circuit. Since:
- no software change (ROM or Kernel) fixes it
- no battery change fixes it
Then it's obviously the charging circuit in the phone. Time to get a new phone!

Well I've confirmed for myself that it is my phone charging circuit that's giving me bad info on my battery charge. I installed both my batteries in a friends Gnex and both gave me 100% charge reading on my friends phone. I then re-installed both batteries in my phone and both came back with identical 13% charge reading. So to me this is obviously not a battery issue.
Since my previous post in July my phone has gotten progressively worst. So I have now come to the point where I either have to replace the phone's charging circuit or replace the phone all together. I would much rather do the first as any replacement phone via my carrier would require me to pay more monthly on my contract.
So would anyone know with certainty where the charging circuit is located in the Gnex? Is it on the main logic board or the USB charging board?
Thanks

[Q] HELP Extended Battery not charging (unique and weird problem!)

Hi xda,
i have recently bought these 2x 3600mah batteries from ebay. I cannot post the link but they are from an ebay store called bravo-ex. Its one of those white batteries with red and yellow stripes. The batteries brand says RD, but i think its a generic china brand or something.
Anyways,
I was able to use the batteries a first couple of times. I managed to charge both up only up to around 65%.
Now i have this problem where the charging indicator is not showing properly when i plug my phone in. There is no battery indicator lightning sign or moving. It stays stagnant at 5%. Tried charging for hours and nothing changes.
When i try to charge with phone turned off the phone will boot back up to home screen, instead of showing the big charging battery icon.
When i plug in the usb cable. Battery section in settings shows status as Not Charging but the led light still comes on red so i know there is charging going on but the battery meter doesnt move!
I have tried the following:
- edit build.prop battery capacity to 3600
- deleted the batterystats (couldnt delete at 100% because i cannot charge beyond 65%
- reflash to stock rom 2.3.4 and kernel (it did work for a while but went back again after a couple of plugging and unplugging)
- switching back to stock battery to check if usb port is faulty. The charging still works!
- changing around between 3 pairs of cables and chargers
My system is
-R800i
- Rom: Elite Gamer v2.0 GB
- Kernel: Lupus v12 for GB
- I had my digitizer and flex cable replaced at a third party service center about 2 weeks ago.
Please help me i am getting desperate. It may be the batteries are DOA but both batteries being dead seems a little unlikely. I really love this little piece of gaming heaven. I would really appreciate if someone can give me any expert advice. Thank you!
-

i have discovered a weird and non permanent fix.
i have to swap the old battery and the extended batteries back and forth several times until the battery meter decides to show up on the extended one.
But it only works after like 10+ swaps and after few minutes of charging it goes off after like 10mins!
WTF!

I agree that you have wierd problem.
I would blame the charger, but you already test another one...
If i where you, i would measure voltage on battery after it stop charging with voltmeter. 0% should be 3.2V and 100% charged should be 4.2V. On both, stock and extended battery.
Also, measuring voltage at pins that connect the battety to see the voltage value (with battery removed and usb charger plugged in)
Or maybe contacts on usb jack on phone is dirty and can be cleaned with alcohol and cloath (with phone off and battery removed)
This is just wild guesses, i really can't say what is causing it
Sent from my R800i using xda app-developers app

[Q] Tab Pro 8.4 (stock, unrooted) not charging properly. Worked fine for months.

Did anybody get issues months after they'd purchased the device?
My 8.4 Pro worked perfectly (6-8h SoT, 100% charge everytime) for about 2 months, but hasn't been charging properly since yesterday. I tried combos of all my charger/cables - they are all giving 1A+ rate on my other devices, but not even being measured on the tab (vis Ampere). Battery has been stuck around 50% for ages. I'm in India, so no easy way to get this back to the US for warranty replacement. Besides, by the time I return to NJ, the tab will be out of warranty.
Please note that I have also factory reset it. The problem, unfortunately, persists.
What should I do? This may not be a software issue: I use this tab while I'm on a stationary cycle, so maybe that motion somehow 'knocked' the battery out of whack somehow? Should I open up the tab and do a battery reset? Is there any, less dangerous, solution?

SoberDogs said:
Did anybody get issues months after they'd purchased the device?
My 8.4 Pro worked perfectly (6-8h SoT, 100% charge everytime) for about 2 months, but hasn't been charging properly since yesterday. I tried combos of all my charger/cables - they are all giving 1A+ rate on my other devices, but not even being measured on the tab (vis Ampere). Battery has been stuck around 50% for ages. I'm in India, so no easy way to get this back to the US for warranty replacement. Besides, by the time I return to NJ, the tab will be out of warranty.
Please note that I have also factory reset it. The problem, unfortunately, persists.
What should I do? This may not be a software issue: I use this tab while I'm on a stationary cycle, so maybe that motion somehow 'knocked' the battery out of whack somehow? Should I open up the tab and do a battery reset? Is there any, less dangerous, solution?
Click to expand...
Click to collapse
You need to use a 2A rated charger and really there is only a few that qualify, I suggest you only use the Samsung charger as they seem to have a certain way to charge it, chargers do go bad sometimes so look for an official replacement (they cost like $5 on ebay), beware of knockoffs though since they look identical, I suggest searching for the same model number on the charger. IE : EP-TA10JWE
anyways here are some things to try in the meantime
1. drain the battery down to 15%
2. hold the power button down and choose the Power Off setting, wait until you feel it vibrate, now let the tablet sit for an hour in this state. (do not hook it to a charger)
3. after an hour or two, plug the charging cable into the table and let it charge (do not turn it on), you should see an animated battery screen show up a few times, see if it reaches 100% in this "powered off" state.
if it does then that could mean there is an app running in the BG when it is started causing a lot of cpu load or keeping it awake..
I've so far had my tab 8.4 for almost a year and the battery is still holding up with 8-10h of runtime (depending on what I do). and it always charges to 100% using the samsung charger.

otyg said:
You need to use a 2A rated charger and really there is only a few that qualify, I suggest you only use the Samsung charger as they seem to have a certain way to charge it, chargers do go bad sometimes so look for an official replacement (they cost like $5 on ebay), beware of knockoffs though since they look identical, I suggest searching for the same model number on the charger. IE : EP-TA10JWE
Click to expand...
Click to collapse
The chargers I tested were rated 2A, and their cables were 28/24 AWG. On my Dell Tablet, the same setup was giving me around 1300 mah. On the pro, most of the time the current didn't even get measured.
Tried the other things you mentioned. It charges, overnight, to 100%, but despite the factory reset, weird battery behaviour is observed: slow recharge, jumping from 93% to 100% the moment i connected it to the lappy to transfer data, etc.

SoberDogs said:
The chargers I tested were rated 2A, and their cables were 28/24 AWG. On my Dell Tablet, the same setup was giving me around 1300 mah. On the pro, most of the time the current didn't even get measured.
Tried the other things you mentioned. It charges, overnight, to 100%, but despite the factory reset, weird battery behaviour is observed: slow recharge, jumping from 93% to 100% the moment i connected it to the lappy to transfer data, etc.
Click to expand...
Click to collapse
You are using the Samsung charger?, I noticed with other chargers for some reason when the battery gets near full the mA drops to under 200mA and stops charging the battery or its just enough to keep the tablet running, this does not happen with the Samsung charger it mostly charges the tablet at 1880~mA, when its in the 90% range drops to about 600-800mA so it can still trickle charge the batt and provide enough power to keep it running.
I have tried other chargers like the 2A HP Touchpad Charger (was supposed to be the best charger out) and some 2A powerbanks - and they all fall short near 90%, just don't pull enough amps, I think the samsung charger has a higher voltage too 5.60v where the others are around 5.30v
btw I have an actual hardware mA cable that shows the current in realtime, I'm not sure how accurate the battery monitor programs are for android without root access, since without root I don't know how they read the system files.

otyg said:
You are using the Samsung charger?, I noticed with other chargers for some reason when the battery gets near full the mA drops to under 200mA and stops charging the battery or its just enough to keep the tablet running, this does not happen with the Samsung charger it mostly charges the tablet at 1880~mA, when its in the 90% range drops to about 600-800mA so it can still trickle charge the batt and provide enough power to keep it running.
I have tried other chargers like the 2A HP Touchpad Charger (was supposed to be the best charger out) and some 2A powerbanks - and they all fall short near 90%, just don't pull enough amps, I think the samsung charger has a higher voltage too 5.60v where the others are around 5.30v
btw I have an actual hardware mA cable that shows the current in realtime, I'm not sure how accurate the battery monitor programs are for android without root access, since without root I don't know how they read the system files.
Click to expand...
Click to collapse
Getting a slow current with the 5.3v samsung charger and cable as well. But yeah, using software (GSM battery, Ampere) to get the charge.

SoberDogs said:
Getting a slow current with the 5.3v samsung charger and cable as well. But yeah, using software (GSM battery, Ampere) to get the charge.
Click to expand...
Click to collapse
Hm I suppose the battery could of went bad if it wasn't being charged properly by some chargers for example if it was never reaching 100% then the system never shuts off the charging mechanism and will essentially cook the battery causing it to die faster then normal .
If you had root access you could check the status of the battery and it would report the battery info in stages - very good (brand new), good, bad, fail ..etc I am not sure if non root programs can access this info.
I guess there are a few extra things to try.
1. A new Samsung charger, it might be possible yours went bad.
2. re-seat the battery, though this requires opening the tablet possibly voiding the warranty or causing other damage - maybe take it to a repair shop if you have difficulties, from what I have read on this forum it has solved numerous cases like yours, not sure exactly what it does perhaps removing voltage from the hardware causes and glitches to reset like from accidental static electricity shocks or if it just re-calibrates the battery like it was replaced..etc, it might just be the connector comes loose, anyways it sucks Samsung didn't included a reset button since it's a needed feature for sealed tablets)

SoberDogs said:
Tried the other things you mentioned. It charges, overnight, to 100%, but despite the factory reset, weird battery behaviour is observed: slow recharge, jumping from 93% to 100% the moment i connected it to the lappy to transfer data, etc.
Click to expand...
Click to collapse
This is a fairly common issue on this device. Its a defect, I'm thinking its the "smart battery" circuitry on the battery itself (my understanding, at least some of the metering is done on the battery by this circuitry). Its been discussed at length on the following thread; with the suggested fix being to open up the tablet and "reseat" the battery: http://forum.xda-developers.com/galaxy-tab-pro-12-10-8/general/reseating-battery-wonder-battery-life-t2944610
I've had this problem for a while now. The issue was non-existent or rare at first, then got more common after owning the device for a few months. Haven't used any apps to measure the mA, but this is across 3 or 4 different chargers, 2 of which are original Samsung 2A chargers (had another one left from my broken Note 8). The issue also persists whether on stock ROM, custom TouchWiz ROM, or custom AOSP ROMs.
Sometimes the tablet will charge fully, no issue. Sometimes it will stop somewhere along the way (well short of 100%) and doing a reboot will usually get the charging "going" again. Sometimes I will need to reboot 3 or 4 times to get it charged to 100%. I've also tried factory resets, but its hard to say whether this helps or not.
Short of rebooting while charging, there isn't much I've found to help. I haven't tried opening the device to reseat the battery.

Maybe the usb port in the tablet has some debri in it. Try blowing it out with some cpompressed air. The symtoms sound like a faulty usb cable but if you have tried different ones it might be the port.
Sent from my SM-T320

Question S21 FE, very slow charging both wired and wireless

Hi all!
I have a 2 weeks old S21 FE, and a brand new Samsung original 25W PD adapter + original USB-C to USB-C cable. I am very disappointed with the charging speed, both for wired and wireless charging. I have obviously enabled fast charge & fast wireless charge in settings. The cable, socket and so on is 100% fine. The phone's diagnosis tool reports that all is OK.
WIRED: At 27% battery, estimated 62 minutes left to fully charged. At 55% battery, estimated 45 minutes left to fully charged. At 87% battery, estimated 26 minutes left to fully charged.
WIRELESS, with a 15 W charger+same adapter/cable as above: At 13% battery, estimated 3 hours and 50 minutes(!!) left to fully charged. At 55% battery, estimated 2 hours left to fully charged. At 72% battery, estimated 73 minutes left to fully charged.
Is this really normal?
The Samsung chat person suggested:
1. Charge/discharge the phone 2-3 times after it's new, to "stabilize the battery". I guess I haven't fully charged/discharged (100%/0%) 2-3 times. However, I do not really believe it's gonna work.
2. Reset all settings. I'd rather not - as I will lose some hours of customizing-work. I do not believe this will do it, anyway.
3. "We have a fast charge adapter on the website, it's supposed to work very well". Obviously, and not surprisingly, the ***** haven't read what I wrote.
4. Activate Secure Mode and test again. Did it, doesn't have any effect.
5. And here it comes, the suggestion they really like you to try, but the one that you don't wanna try after customizing and downloading and getting stuff just as you want it: reset to factory settings!!! The favorite customer service way to "help". Obviously, I'd rather not.
So.... Any owners of this phone (or similar)? What's your charging experience? Does it "stabilize" after som charge/discharge?
Thank you so much, I appreciate it. Great phone, apart from charging speed....

Can confirm minutes for wired, same here. Samsung is not the best in case of charging speed
Put in airplane mode or turn off for better speed. Once phone is hot it stops charging completely, they have huge battery protection I guess. It may also limit the charging speed by default

Thank you. It seems strange though, because I have a Samsung A52 phone for work. It is a quite basic phone, but charges incredibly fast. I have tried the A52 supplied charger on the S21 FE, but still the same slow speed... The A52 charges 0-100 in much less than an hour, if I remember correctly.
Disappointed!

Not sure, if that helps, but you might check the app called AMPERE.
I will put the Google Play link below.
Every time I am troubleshooting the charging on any Android device I use this app.
It will basically tell you with what current is consumed by the device in real time.
My S21FE (SD888) can take max 3000 mAh (3 amps).
I would say it's not bad.
It gets anyways too hot to my opinion with the 3 amps , so I am charging only with max 1300 mAh ...
So install the Ampere app on the A52 and also on the S21 FE and let's see if the numbers will be the same with the same power-brick and cable or not ...
AMPERE Google Play Link

epssen said:
Hi all!
I have a 2 weeks old S21 FE, and a brand new Samsung original 25W PD adapter + original USB-C to USB-C cable. I am very disappointed with the charging speed, both for wired and wireless charging. I have obviously enabled fast charge & fast wireless charge in settings. The cable, socket and so on is 100% fine. The phone's diagnosis tool reports that all is OK.
WIRED: At 27% battery, estimated 62 minutes left to fully charged. At 55% battery, estimated 45 minutes left to fully charged. At 87% battery, estimated 26 minutes left to fully charged.
WIRELESS, with a 15 W charger+same adapter/cable as above: At 13% battery, estimated 3 hours and 50 minutes(!!) left to fully charged. At 55% battery, estimated 2 hours left to fully charged. At 72% battery, estimated 73 minutes left to fully charged.
Is this really normal?
The Samsung chat person suggested:
1. Charge/discharge the phone 2-3 times after it's new, to "stabilize the battery". I guess I haven't fully charged/discharged (100%/0%) 2-3 times. However, I do not really believe it's gonna work.
2. Reset all settings. I'd rather not - as I will lose some hours of customizing-work. I do not believe this will do it, anyway.
3. "We have a fast charge adapter on the website, it's supposed to work very well". Obviously, and not surprisingly, the ***** haven't read what I wrote.
4. Activate Secure Mode and test again. Did it, doesn't have any effect.
5. And here it comes, the suggestion they really like you to try, but the one that you don't wanna try after customizing and downloading and getting stuff just as you want it: reset to factory settings!!! The favorite customer service way to "help". Obviously, I'd rather not.
So.... Any owners of this phone (or similar)? What's your charging experience? Does it "stabilize" after som charge/discharge?
Thank you so much, I appreciate it. Great phone, apart from charging speed....
Click to expand...
Click to collapse
So I had a similiar problem here.. My issue was I got a 'moisture is detected in my port' message. Therefore my phone would stop charging.. when the error finally went away Fast/Super fast charging also stopped working.. I took my phone to a Samsung authorised service centre near me ( Closest Samsung was about 2 hrs away) They fixed my phone within 3 days. Replaced my port and the cable between the motherboard and charging block.
Now my phone works 100%
It might be the same issue maybe not. But maybe try different cables and chargers as well.
Otherwise take your phone in for repairs. It should be still under warranty and would cost you nothing.
It seems like the s21fe has a lot of dud phones it looks like

androiduser12345678 said:
Not sure, if that helps, but you might check the app called AMPERE.
I will put the Google Play link below.
Every time I am troubleshooting the charging on any Android device I use this app.
It will basically tell you with what current is consumed by the device in real time.
My S21FE (SD888) can take max 3000 mAh (3 amps).
I would say it's not bad.
It gets anyways too hot to my opinion with the 3 amps , so I am charging only with max 1300 mAh ...
So install the Ampere app on the A52 and also on the S21 FE and let's see if the numbers will be the same with the same power-brick and cable or not ...
AMPERE Google Play Link
Click to expand...
Click to collapse
Can confirm this. However after my repair I got over 3000mAh charge.
Before the repair it only did 800mAh

Mine is also faulty. Battery life is terrible and charging became very slow.
Using samsung 25w sfc charger.
Sending it to repair tomorrow.
But i must note that in all cases you must try a factory reset. It can fix a lot of user issues as well as glitches. But in my case the problem is hardware based.

ish4d0w123 said:
Mine is also faulty. Battery life is terrible and charging became very slow.
Using samsung 25w sfc charger.
Sending it to repair tomorrow.
But i must note that in all cases you must try a factory reset. It can fix a lot of user issues as well as glitches. But in my case the problem is hardware based.
Click to expand...
Click to collapse
Seems like we get a lot of dud phones. I had same issue.. formatted my phone etc. I ended up taking it to samsung for repairs got it back and its fixed.. but phone isn't 100% as it was.. gets very laggy after a while..

Billabomb75 said:
Seems like we get a lot of dud phones. I had same issue.. formatted my phone etc. I ended up taking it to samsung for repairs got it back and its fixed.. but phone isn't 100% as it was.. gets very laggy after a while..
Click to expand...
Click to collapse
Yes, there is something wrong with this phone. Mine has severe overheating issues.
Try taking it out of the case, in case you use a case. Helps a lot with heat dissipation and this phone needs all the help you can give it during the summer.

Battery always showing 0% and shutting down when unplugged!

One fine morning my Note 10.1 2014 battery started showing as 0% and will not 'charge' (i.e., percentage will not rise). As a result, the tablet has to stay plugged-in always to use it (just like a desktop computer). The moment it is unplugged, it shuts down in 1 or 2 seconds. Tried different chargers/cables/flex cables/new battery/uninstalling/reinstalling/warming...& what not. But nothing solves the issue. I came to know that the battery is actually holding/taking in charge which is evident from the fact that the tablet runs without being plugged-in in the recovery/TWRP mode! It seems just that the android OS is not recognizing the charging. Any help would be appreciated. Thank you!

Is the battery really good? The boot menu uses a lot less current than normal boot up operation.
Otherwise you're looking at a possible mobo failure. If it has a charger pcb it could be that.
A Samsung Experience center at a Best Buy might be able to sort it out for you.

blackhawk said:
Is the battery really good? The boot menu uses a lot less current than normal boot up operation.
Otherwise you're looking at a possible mobo failure. If it has a charger pcb it could be that.
A Samsung Experience center at a Best Buy might be able to sort it out for you.
Click to expand...
Click to collapse
It is not the battery, I am pretty sure! As for the other possible causes suggested, it seems Samsung considers the product too 'old' now to look into/offer any service/parts replacement. Anyway, thanks for the quick reply!

I got the same experience. Recently installed LOS14.1 on my Samsung 2 7.0 and battery just drained and inspite charging it overnight never recovered. I think it's really the LOS 14.1. Now I cant even boot it up anymore.

tom.cruiser said:
I got the same experience. Recently installed LOS14.1 on my Samsung 2 7.0 and battery just drained and inspite charging it overnight never recovered. I think it's really the LOS 14.1. Now I cant even boot it up anymore.
Click to expand...
Click to collapse
Please do post, if you find a solution!

I strongly doubt that LOS14.1 (lineage-14.1-20210320-UNOFFICIAL-lt03lte) is the culprit as my old P605 still works with the unchanged battery.
Once charged it lasts for quite some days (usage 0.5h/day) without problems.
It's always in flight mode and mostly WLAN is shut off.

It's not that cuz of an OS it's the old battery problem....
Same thing happens to one of my cellhphones.
I charrge it to 100 % while it's turned OFF then tomorrow I turned it on and battery is at 1 %, 0 % and shuts off.
It's just old Li-Ion battery which needs replacement.

After having replaced the battery with a new one with about 50% charge the discharged P605 would only recharge to the level of the original charge. It returned to normal behaviour after charging once with the original 5v/2A charger and the original cable with the second GND contact missing. If the latter did the trick, with most cables u can't tell whether the contact is wired to GND or not.
But in the days of miniUSB, the second GND was sometimes used to put the device in charge or pc connection mode, by swapping cables.