Develop Bugs

bad charger - bricked?

hi,
i bought a micro usb charger for my sister's galaxy s from ebay. my sister said that it doesnt work.
i tried it on my t989 and it worked, my battery was 30% full.
i came back after an hour and the phone is off and wont respond. i tried connecting it to computer and it's not recognized, also i tried jig and using the original charger to charge the phone and it wont turn on or respond.
*the ebay charger went dead completely and wont produce any voltage.
i sent it to a lab but the problem is that i live in israel and they are familiar only with the international version of the phone- the 9100.
the tech guy said that he thinks the phone is bricked. is that possible from using a faulty charger? i thought it can only happen when flashing a wrong rom.
thanks for your help,
omri

lomri said:
hi,
i bought a micro usb charger for my sister's galaxy s from ebay. my sister said that it doesnt work.
i tried it on my t989 and it worked, my battery was 30% full.
i came back after an hour and the phone is off and wont respond. i tried connecting it to computer and it's not recognized, also i tried jig and using the original charger to charge the phone and it wont turn on or respond.
*the ebay charger went dead completely and wont produce any voltage.
i sent it to a lab but the problem is that i live in israel and they are familiar only with the international version of the phone- the 9100.
the tech guy said that he thinks the phone is bricked. is that possible from using a faulty charger? i thought it can only happen when flashing a wrong rom.
thanks for your help,
omri
Click to expand...
Click to collapse
Sadly my friend you may be out of luck. I had a bad EU adapter that shorted two of my previous devices. My only advice is perhaps to contact Samsung and plead your case. with any luck it may still be under warranty and they may be able to repair/replace it. Good luck man.

i actually have the phone for only 8 months, but i bought it from amazon (new)
is that going to be a problem?

lomri said:
i actually have the phone for only 8 months, but i bought it from amazon (new)
is that going to be a problem?
Click to expand...
Click to collapse
All you can do is try. Worst that will happen is they say no. They also light offer a reasonable price for them to fix it. Only guess I have is that it fried the mobo. Or maybe only shorted the battery. Do you have another battery to test
Sent from my SGH-T999 using Tapatalk 2

no, i dont have another battery.
where exactly do i send my email to?

help anyone?

Sorry I let the thread die. Im on the road so I can't offer as much help as you may want but honestly Google "Samsung warranty repair or return". I'm sure you will find your answer
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

VBUS TUNA OTG wakelock due to usb port problem and battery drain

I had the problem of ghost charging, it started with phone not charging when connected to charger and then randomly showing charging(even when not plugged in i.e. ghost charging) .
After seeing other thread, i cleaned the port with paper and tooth pick and also pushed the inner tongue slightly upwards and now it doesn't show charging icon, but it says not charging in settings>battery, instead of discharging
It causes vbus_tuna_otg wake lock in Bette battery stats and high system usage in setting> battery, basically not letting the phone go to deep sleep, causing battery drain.
Have tried multiple roms and stock, etc all give same behaviour so definately h/w problem and also have two batteries and both do the same thing.
Any way to fix this. ?
Any help appreciated.

hardikjakharia said:
I had the problem of ghost charging, it started with phone not charging when connected to charger and then randomly showing charging(even when not plugged in i.e. ghost charging) .
After seeing other thread, i cleaned the port with paper and tooth pick and also pushed the inner tongue slightly upwards and now it doesn't show charging icon, but it says not charging in settings>battery, instead of discharging
It causes vbus_tuna_otg wake lock in Bette battery stats and high system usage in setting> battery, basically not letting the phone go to deep sleep, causing battery drain.
Have tried multiple roms and stock, etc all give same behaviour so definately h/w problem and also have two batteries and both do the same thing.
Any way to fix this. ?
Any help appreciated.
Click to expand...
Click to collapse
Just have them send you a replacement, I was experiencing the same thing. I was back up and running in a half hour...
Sent from my Galaxy Nexus using Tapatalk 2

0dBu said:
Just have them send you a replacement, I was experiencing the same thing. I was back up and running in a half hour...
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Hey,
i actually live in India, and had purchased this from US from Google directly, so i dont think samsung will be providing replacement, they give only limited warranty after 14 days..
Any idea on how to solve problem or atleast let device go to sleep..
- Hardik

hardikjakharia said:
Hey,
i actually live in India, and had purchased this from US from Google directly, so i dont think samsung will be providing replacement, they give only limited warranty after 14 days..
Any idea on how to solve problem or atleast let device go to sleep..
- Hardik
Click to expand...
Click to collapse
There's another thread in here somewhere where a guy replaced his USB port, you may look into that.
Sent from my Galaxy Nexus using Tapatalk 2

vbus-tuna_otg
Did you ever get it fixed, I also have the same problem I have been searching and searching and I can't find a solution. I have tried a new battery, resetting the phone to stock, cleaning the usb port, replacing the usb port, taking the phone apart and cleaning it, greenified a lot of apps and the phone still does it. I just ordered another usb port in case the first one I bought was defective. I have bbs and vbus-tuna_otg is the main kernel wakelock killing my battery. Hopefully someone can help us seeing as this is a Google flagship phone.
My phone is a Verizon 32GB Galaxy Nexus running CM 10.1.3

Have tried the same as you. Changed port and battery and problem still persists. It's probably a board thing and needs a board replacement. I ll just have to live with it. I have the GSM version. I wonder if there is any way of disabling the service /process that creates the wakelock...
Sent with my thumbs using Tapatalk 2

KostasR said:
Have tried the same as you. Changed port and battery and problem still persists. It's probably a board thing and needs a board replacement. I ll just have to live with it. I have the GSM version. I wonder if there is any way of disabling the service /process that creates the wakelock...
Sent with my thumbs using Tapatalk 2
Click to expand...
Click to collapse
Damn that really sucks. I just bought the phone and I never knew this problem existed. Google should fix this.

open-source software solution
hardikjakharia said:
It causes vbus_tuna_otg wake lock in Bette battery stats and high system usage in setting> battery, basically not letting the phone go to deep sleep, causing battery drain.
Have tried multiple roms and stock, etc all give same behaviour so definately h/w problem and also have two batteries and both do the same thing.
Any way to fix this. ?
Click to expand...
Click to collapse
Hi,
I have developed an open-souce (GPLv3) app that helps save battery when this happens.
http://forum.xda-developers.com/showthread.php?t=2484871
SnooZy Charger turns off the screen on these ghost connections, saving battery consumption by the display. It does not fix the charging issues, but it reduces the battery drain when this happens.
mudar
ps: sorry if this is considered as self promotion or xposting but this issue has been reported on multiple threads..

mudar1488 said:
Hi,
I have developed an open-souce (GPLv3) app that helps save battery when this happens.
http://forum.xda-developers.com/showthread.php?t=2484871
SnooZy Charger turns off the screen on these ghost connections, saving battery consumption by the display. It does not fix the charging issues, but it reduces the battery drain when this happens.
mudar
ps: sorry if this is considered as self promotion or xposting but this issue has been reported on multiple threads..
Click to expand...
Click to collapse
Hey thanks I'm going tobgive it a try. I'll leave feedback to see if I have any ideas for you. Thanks again.

Extreme Charging time on wall charger - only 40% in 7 hours

Thanks for taking the time...
My Note 8 3g is showing a strange behaviour as of late.
I leave it plugged in the original wallcharger from Samsung, switched on/ 3G active.
Plugging in at roughly 10% that would give me 50-60% in the morning after 7-8 hours.
Battery & Task manager don't show any permanent CPU hogs or wake locks.
Device is loaded with a couple of generic apps but not rooted...
With a 4600mAh battery and a the 2000mAh Samsung charger charging at 0.5C the tablet should be finished after roughly 3 hours.
My Note 8 is taking twice the time for half the charge?!
Before giving it a hard reset I would like to know, if someone has an idea / solution.
Thanks again for Your time,
Yoko

That is a worry. I get full charge after about 3 hours on my samsung charger, and about 10% charge per hour on my blackberry charger at work. Mine is the wifi only model though, i dont know how much juice the 3g and what ever other connections you have running will use and if that would make up much difference. Sounds like a significant amount slower though. Do you have access to another 2A charger to see if its a problem with the samsung charger rather than the tablet?

In my case was the faulty charger cable, I was getting nuts searching for help when someone (don't remember which tread was) said about that. There's a free app on playstore that shows you how much current are receiving your device. With that app I realized that it was the cable, not the charger or software related.
Hope that helps.
Sent from a note from another galaxy.

Yokobln said:
Thanks for taking the time...
My Note 8 3g is showing a strange behaviour as of late.
I leave it plugged in the original wallcharger from Samsung, switched on/ 3G active.
Plugging in at roughly 10% that would give me 50-60% in the morning after 7-8 hours.
Battery & Task manager don't show any permanent CPU hogs or wake locks.
Device is loaded with a couple of generic apps but not rooted...
With a 4600mAh battery and a the 2000mAh Samsung charger charging at 0.5C the tablet should be finished after roughly 3 hours.
My Note 8 is taking twice the time for half the charge?!
Before giving it a hard reset I would like to know, if someone has an idea / solution.
Thanks again for Your time,
Yoko
Click to expand...
Click to collapse
I have this issue too. I'm going to try to find a new charger and see if that works.
---------- Post added at 09:20 AM ---------- Previous post was at 08:55 AM ----------
snc74 said:
In my case was the faulty charger cable, I was getting nuts searching for help when someone (don't remember which tread was) said about that. There's a free app on playstore that shows you how much current are receiving your device. With that app I realized that it was the cable, not the charger or software related.
Hope that helps.
Sent from a note from another galaxy.
Click to expand...
Click to collapse
where did you get your new cable?

snc74 said:
There's a free app on playstore that shows you how much current are receiving your device. With that app I realized that it was the cable, not the charger or software related.
Click to expand...
Click to collapse
Can you please say what the app's name is?.. I seem to have charger issues as well.

Spartanus said:
Can you please say what the app's name is?.. I seem to have charger issues as well.
Click to expand...
Click to collapse
Galaxy Charging Current "Lite"

Shofar1 said:
Galaxy Charging Current "Lite"
Click to expand...
Click to collapse
Oh, thanks a lot!

Yokobln said:
Thanks for taking the time...
Before giving it a hard reset I would like to know, if someone has an idea / solution.
Thanks again for Your time,
Yoko
Click to expand...
Click to collapse
I would try, in order:
1. Check your battery stats to make sure nothing weird is chewing up the battery (should be screen, Android OS and possibly Google Services as the top culprits...if there is any *app* above those and you're not really using the app, uninstall it)
2. Bypass a surge protector (if there is one) and plug directly into the wall.
3. Try a different cable
4. Try a different charger
5. Try the charger and cable on a different device that uses 2.1a if possible
If there are no rogue apps, nothing changes and the charger seems to function properly, then you are probably looking at a hardware problem with the device. I would guess a factory reset wouldn't accomplish anything.

also if you are looking for a diff charger make sure the amps are the same. i believe its a 2a charge on this tab. if not then charging will take longer.

Thanks to all Your kind replies!
Sorry for staying quiet for a couple of days, it's been a very busy week for me.
My problem appears to be solved - it has indeed been the USB cord!
Seriously....who would have thought.
I use the exact same cable to charge my HTC One S without an issue.
Thanks again to all of You! :good:
Regards,
Yoko

I faced the same Issue. Just let the battery Drop to %0 and Turned off then let the device pwged in overnight. For me that fix it without using any apps
NB. I know letting Li-ion battery drop to %0 is bad!
good Luck
Sent from my GT-N5100 using xda app-developers app

[Q] Nexus 7 turns off

Hello Everyone,
I am a noob on XDA, Please correct me if i have posted in the wrong forum. I bought a new nexus 7 16gb, for some reason when the battery is around 25-30% the tablet turns off itself. Its not shutdown its like pulling the battery of a phone thats on. The only way to start it is by connecting the charger.
Has anyone else experienced this issue?
I am on the stock rom NOT rooted
Thanks

steve_togo said:
Hello Everyone,
I am a noob on XDA, Please correct me if i have posted in the wrong forum. I bought a new nexus 7 16gb, for some reason when the battery is around 25-30% the tablet turns off itself. Its not shutdown its like pulling the battery of a phone thats on. The only way to start it is by connecting the charger.
Has anyone else experienced this issue?
I am on the stock rom NOT rooted
Thanks
Click to expand...
Click to collapse
Have you charged the device to 100% yet? I would do that, leave it charging for an hour after it shows 100% then use it till it dies. Rinse and repeat.
Sent from my SCH-I535 using Tapatalk 4

highfigh said:
Have you charged the device to 100% yet? I would do that, leave it charging for an hour after it shows 100% then use it till it dies. Rinse and repeat.
Sent from my SCH-I535 using Tapatalk 4
Click to expand...
Click to collapse
Yes I have charged it 100% multiple times, The only difference is i use a sammy charger that outputs 0.7 amps once in a while. I dont suspect the charging thing to do this.

Are you getting normal use out of a charge? How much screen time in one charge?
Sent from my SCH-I535 using Tapatalk 4

steve_togo said:
Yes I have charged it 100% multiple times, The only difference is i use a sammy charger that outputs 0.7 amps once in a while. I dont suspect the charging thing to do this.
Click to expand...
Click to collapse
Like Highfigh suggested check how long you can run on a full charge. If you get some good hours in then maybe the battery % is not reporting back properly. A reset/restore could possible resolve that issue.

I believe I am getting pretty good charge. I will try once again, I was thinking this might be something with stock rom and hence I posted it online. Thanks every one for the help
Sent from my Nexus 7 using Tapatalk 2

and one more self-turning-off nexus 7 hd
steve_togo said:
I bought a new nexus 7 16gb, for some reason when the battery is around 25-30% the tablet turns off itself. Its not shutdown its like pulling the battery of a phone thats on. The only way to start it is by connecting the charger.
Has anyone else experienced this issue?
I am on the stock rom NOT rooted
Click to expand...
Click to collapse
exactly the same story here. in my case it's not so easy to turn it on. it would seem like the device is completely discharged, even if it just showed some 40 % battery left. i have to wait several hours to even try to bring it back to recovery mode. very long press does nothing. it happened couple of times already. very annoying with such seemingly superb tablet. i'm not living in the us of a, so no quick replacement for me

That's bad I can turn on mine in a few minutes. Again mine happens very rarely. I also get an excellent battery life. How long does yours go on a charge.
I would also like to know if there is any kind of Logs that we can look at. It's getting irritating, did you try rooting your device to see if that might fix the problem.
Sent from my Nexus 7 using Tapatalk 2

I got the same problem recently, I think it was after the last update on the firmware. Everytime the battery reach around 35% it just went off.

Need help from A hardware expert with this charging/battery issue

Battery charges fine when done offline/ i.e plugging battery out and charging ...
but when i try to charge it online battery start acting out weird . phone restart as soon as i plug in and then battery level drops also it wont charge .. and eventually dies
any advice please

abhishek009 said:
Battery charges fine when done offline/ i.e plugging battery out and charging ...
but when i try to charge it online battery start acting out weird . phone restart as soon as i plug in and then battery level drops also it wont charge .. and eventually dies
any advice please
Click to expand...
Click to collapse
What do you mean plugging battery out??

plugging battery out by opening the back panel , and removing it from the board socket

abhishek009 said:
plugging battery out by opening the back panel , and removing it from the board socket
Click to expand...
Click to collapse
Are you using stock charger to charge online? there might be one more possibility that battery might not be pinned properly to the phone.

coolrevi said:
Are you using stock charger to charge online? there might be one more possibility that battery might not be pinned properly to the phone.
Click to expand...
Click to collapse
yes i am using stock charger , and i tried several times battery is pinned properly .. it all started because the computer guy made wrong usb connections on my computers motherboard .. i connected to transfer my photos and it suddenly died. on connecting to computer via usb it charges sometimes ..but then restarting it results in mega drop in battery level and then it wont charge.
Just wanted to know that if this is a hardware issue or a software issue. would flashing a ftf solve the issue ?

abhishek009 said:
yes i am using stock charger , and i tried several times battery is pinned properly .. it all started because the computer guy made wrong usb connections on my computers motherboard .. i connected to transfer my photos and it suddenly died. on connecting to computer via usb it charges sometimes ..but then restarting it results in mega drop in battery level and then it wont charge.
Just wanted to know that if this is a hardware issue or a software issue. would flashing a ftf solve the issue ?
Click to expand...
Click to collapse
K i personally think that there is a problem with the battery. once the battery is connected to wrong polarity it generally get ****ed up but i see that it charges properly with the battery charger. if the charge is retained normally there is definitely no problem in battery. It will be the PIN . But not harm in trying to reset through PCC or flashing FTF.

coolrevi said:
K i personally think that there is a problem with the battery. once the battery is connected to wrong polarity it generally get ****ed up but i see that it charges properly with the battery charger. if the charge is retained normally there is definitely no problem in battery. It will be the PIN . But not harm in trying to reset through PCC or flashing FTF.
Click to expand...
Click to collapse
ok i will check one thing tonight .. am gonna charge the battery and leave it over night .. if charge retains and acts normal i guess pin and everything else has to be fine .. then the only thing fishy would be when connecting a charger...

Does Kernel affects charging or mess it up ??

abhishek009 said:
Does Kernel affects charging or mess it up ??
Click to expand...
Click to collapse
Yea it does. Get back to stock charge your battery use the phone. if the battery drains normally. There is no problem with battery. The problem is with pin configuration of the phone.
Sent from my C6502 using XDA Free mobile app

coolrevi said:
Yea it does. Get back to stock charge your battery use the phone. if the battery drains normally. There is no problem with battery. The problem is with pin configuration of the phone.
Sent from my C6502 using XDA Free mobile app
Click to expand...
Click to collapse
am on stock and i charged it .. and battery seems to act a little funny with the drops ... restarting results in 2% loss and it went from 55% to 47% in few minutes on idle state ..
also the phone doesnt turn off .. it would just restart itself ....
so guys any help if it is the battery issue or something with software also should i try this
http://forum.xda-developers.com/xperia-zl/general/phone-starts-connected-to-charger-t2864009

i flashed a ftf in flashmode ... still battery would charge just 1% from its current level like it would go to 19% from 18% and stop there ...on connecting to usb or stock charger ...and battery level would drop crazy after that on restarting ..
also phone would be in turn off mode it would just restart ,,,
should i buy a new battery ??

abhishek009 said:
i flashed a ftf in flashmode ... still battery would charge just 1% from its current level like it would go to 19% from 18% and stop there ...on connecting to usb or stock charger ...and battery level would drop crazy after that on restarting ..
also phone would be in turn off mode it would just restart ,,,
should i buy a new battery ??
Click to expand...
Click to collapse
If you are under warranty its better to take it to service. If not change you battery and charger
Sent from my C6502 using XDA Free mobile app

coolrevi said:
If you are under warranty its better to take it to service. If not change you battery and charger
Sent from my C6502 using XDA Free mobile app
Click to expand...
Click to collapse
Not under warranty and i did went to sony service center they said we do not repair .. however sony could swap and i have to pay for a new phone and pay 80% of its cost :/
i ordered a new battery .. changing the charger is important as well ??

abhishek009 said:
Not under warranty and i did went to sony service center they said we do not repair .. however sony could swap and i have to pay for a new phone and pay 80% of its cost :/
i ordered a new battery .. changing the charger is important as well ??
Click to expand...
Click to collapse
I'm not sure its safer to check it with the new charger first in order to avoid Any problem. Other wise you can check the charger with some other phone
Sent from my C6502 using XDA Free mobile app

coolrevi said:
I'm not sure its safer to check it with the new charger first in order to avoid Any problem. Other wise you can check the charger with some other phone
Sent from my C6502 using XDA Free mobile app
Click to expand...
Click to collapse
can i use the same usb cable though .. i can use samsung tab charger or nokia .. but zl charger is 1500mah while samsung is 2000mah and nokia 500mah

abhishek009 said:
can i use the same usb cable though .. i can use samsung tab charger or nokia .. but zl charger is 1500mah while samsung is 2000mah and nokia 500mah
Click to expand...
Click to collapse
I'm using 2 amps charger with my zl I have not face any Problem you can go ahead
Sent from my C6502 using XDA Free mobile app