[Q] why cant i fast charge ? - Nexus 7 Q&A, Help & Troubleshooting

Hi got a gen 1 nexus 7. using it for an in car dash install. all works fine, BUT it wont fast charge. using Timurs ROM. got an OTG Y cable. it says on the " USB HOST " option under settings that it is fast charging but the battery still drains even just playing music. I thought it may be the battery so i have replaced it with a brand new one, charged it for a good 18 hours and still it drains pretty fast. just installed a CPU controller so that may save a bit of power use.... any ideas ?
thanks

Related

touch HD battery questions

the first battery charge on the HD is supposed to be a 8 or 10 or 12 hour charge? or on its not necesary
also the time used to charge it to the pc via usb cable is same as if ud plug it in the electric socket?
how long dose it take for u to charge ur phone.....
mine had 4 lines out of 10 and after 3 hours of it beeing conected to my pc and not in use its still got 4 lines....
opinions seem to vary on how long for 1st charge - personally I left mine on (mains) overnight, but that's just because I've had mobiles since year dot, and you used to have to!
But charging via PC doesn't seem to work as well as from the mains charger - depends a lot on the PC and how much juice it kicks out, some are a lot better than others.
Modern phones/batteries do not need "overnight" charging. My Touch HD even came with a little note saying you don't need to charge for 16hrs/overnight. Just charge until it's full...
Better to charge with wall socket because not all USB ports provide enough current. Some can't charge through the USB port while some can.
I can charge through my notebook but it takes a lot longer than the wall socket.
thanks bouth of u for the fast anwsers....
When I set WiFi settings to max performance, my HTC HD will not charge at all, actually it will loose charge during night, display is off, just WiFi, GSM and GPS is active, connected to provided wall charger. Back side of phone is really hot, I measured over 54°C
Problems charging.
guys(and lady's) Just got my HD. been running it for some time to drain the battery, while on my laptop the battery starts charging. I wanted to drain the battery to give it a good charge afterwords so I turnd off the option of charging while unit is active( in batt. menu) but When I got to 5% batt.cap. an tried to charge the unit (batt. option enabled again) it doesn't charge. now my batt. is empty and can't get in the phone. while on power my battery charging led gives a couple of seconds of charge indication then it turns off.
Any suggestions or is my battery dead. (charging unit is oke, and when on power the HD does give sufficient power to the battery (measured with mulitmeter) thx guys edit - Als when on power green and amber lights blink.
Could that be that your battery is too hot ? There is some safety protection that prevent the batyery to charge when it is over a temperature level.
battery not charging properly
My touch hd not charge the battery more then 50% i change the battery but same as before.
any suggestion
Regards
funstuffalex said:
also the time used to charge it to the pc via usb cable is same as if id plug it in the electric socket?
Click to expand...
Click to collapse
Power socket gives about 1amp - USB 500mA (.5 amp)
Touch HD Battery Charging Problem
The rom i am using is Energy 3 Rom
and try to use both sources wall socket and pc usb both are same.
if i charge the battery on usb cradle and put the phone it shoes 100% but after some use of the phone the charging start again and never show's full even left it over night.
Best regards
Not sure what's going on there,but try draining the battery to almost empty each time and then turn your phone off before charging it. Do this a few times and see if it helps. Mine took about a month beforeit came good.
Dear samlives
Thanks for helping
I will try it
Best Regards
HTC Touch Battery Charging Problem
I got a solution its not 100% but for time being its working for me.
Long press the power button and put the device in sleep mode.
All Done now charging 80 to 90% quite better then before.
Thanks a lot

HELP > Battery Is Not Charging at all (Via WallCharger / Computer USB)

Damn it..... i dont know what happened
it is still working perfectly yesterday
i did not drop the phone or battery, today the battery is still at 40% and as usual, before i went to sleep, i plug my phone on the USB Cable connected to my computer... but it is not charging.. and here i thought the error comes from my USB Cable , so i plug it into my wall charger ... but it is not charging at all!!!
and i thought, perhaps i have installed something , or some os faulty issue ... so i reset the phone via SETTINGS > About > Reset Phone
and after the reset.. it is still not charging...
argh what should i do... please help... anyone
i purchased this phone from singapore.. and i am indonesian.... the battery is currently at 30% , i am so afraid after it runs out of its juice, it will go away forever (because i cant charge it) T.T
what should i do....
(Is this battery and the one used on Galaxy S is the same? My sister has Galaxy S, should i try using her battery and try to charge it from my phone? .... ARGHHHH the omnia 7 is not even available yet in indonesia) T.T
Anyone help T.T
Get another charger it will charge get a new 1
Sent from my Nexus One using XDA App
you sure it is the charger?
You are talking about the wallcharger right?
usually it already charging via USB Connected to a computer.. but this time... the computer does not even detect if anything is connected.... (nothing happened when i plug this phone to my pc, usually there is a notification sound playing and my zune will autorun)...
damn it ... why this happened.. yesterday it is just fine (
damn it .. i am sleepy already..
i will go and sleep for now.. and left my phone turned off and plugged in the WallCharger
and hopefuly.... sigh.. it is still charing although no indication whatsoever is showing that
MAN... should i just try bang the damn battery hard onto the table... perhaps some of the chip inside the battery is misplaced by whatever unknown forced?!
damn it.. i never dropped the phone.... ARGHHHHHHHHHHHHH
this is so frustrating
Relax
Relax man your charger is bad.
I have the same problem but my girlfriend have a Wave and start using his charger and everything works fine.
Buy a new charger
question
can i use any charger from any phone for this Omnia 7?
(the one that has USB Output of course, such as xperia1 charger)
if we can, then it is also not working.... and why suddenly it wont do anything when i plugged it in my Computer USB
the very same computer works perfectly yesterday, and suddenly it is not working..
I suspect either one of these is the problem :
1. the micro USB Connector in the Phone is broken somehow , hence the when we plugged it on, it does nothing
2. the Battery (which if i am not mistaken has a chip inside) is broken, hence explain why it is not charging at all (which a bit does not make any sense, if it is just not charging at least when i plug it on the computer, it should still detect this device...)
I am from indonesia, i can ask my friend who is returning from melbourne to purchase a new battery and new charger hopefuly
Okay to make things simpler.. i have a sister who own a Galaxy S
can i use the galaxy s wallcharger to charge my omnia 7? ah hell,i will try it anyway...
okay according to this
http://www.samsung.com/us/mobile/cell-phones/SGH-I917ZKAATT
it goes great with galaxy s standard battery...
so i suspect, i can use my sister galaxy s standard battery and try to charge it using my cellphone
and i can also try to use my sister galaxy s wallcharger to charge my battery...
okay lets try ... hopefuly.... it is only the battery.. i can easily purchase a new battery... if it is the USB Connector on the phone... damn, how on this green earth can i charge my battery? OH we can use the kickstand battery charger?
hmm suddenly it is working now :O
thanks God... hopefuly it will never ever happened again T.T
Great it is working again
Any possibility that there is a way that the device forces a full recharge cycle to calibrate the battery?
Honestly i guess so.
I have the same problem...i can t charge my i8700 at all...what did you do to charge again???...i use a universal charger where i put my battery ...this happens for two weeks now..
cody28 said:
I have the same problem...i can t charge my i8700 at all...what did you do to charge again???...i use a universal charger where i put my battery ...this happens for two weeks now..
Click to expand...
Click to collapse
Try allowing the phone to run out of battery and turns off, then plug it into the charger, i would love to know if this is a failure or be design behavior.
Put the battery in the phone,
Wait untill the phone goes completely off.
Plug the phone to the wall charger.
write back here
i tryed this but the same problem it turns on but only while the charger is pluged in when i pull it out the phone turns off...i try to hard reset nothing..there is no update to work with non retail devices...the phone is from three uk...i m from romania there is no way to return there to an service..(
Having the same problem. Been working flawlessly.Plugged it in a couple of hours ago,but it doesnt appear to be charging.
When I use the USB charger on the PC, it is recognised, and Zune opens up fine and Phone shows up.
Have tried two Mains chargers, the Omnia 7 one and the one that came with my Galaxy S, same problem.
EDIT:
Left it plugged in overnight and it charged fine.Used phone, going down to about half battery.Plugged it in and seems to be charging without a problem!
I've got the same problem as you guys for a couple of days now.
Thanks for your reactions i will try everyone of them untill my omnia 7 charges again
knetsooj said:
I've got the same problem as you guys for a couple of days now.
Thanks for your reactions i will try everyone of them untill my omnia 7 charges again
Click to expand...
Click to collapse
Do you have a bit of battery left?
Windows Phone 7 devices power up when you plug them in. Maybe the OS is not booting and because it is S-AMOLED display we cannot tell if it is on or not.
Try Hard Resetting without booting WP7
http://forum.xda-developers.com/wiki/index.php?title=Samsung_Omnia_7
Make sure you have a bit of power though, you don't want that to stop in the middle of the proccess
This has happened to me a couple of times. I think it's just a reporting bug, the battery is actually charging. I just have to restart the phone and it magically has charge
battery is charging too long
How long does take to fully charge the battery? For me it's about 4-5 hours with wall charger. Should not it be faster?
Mine is about the same for a full charge and I have also noticed my Omnia 7 not charging properly when I plug it into my MacBook Air however it does seem to charge fine on my Dell laptop for work.
Maybe the Omnia 7 is very sensitive for charging over USB on a laptop and needs a certain voltage for it to charge properly?
What works for me:
1. Original charger
2. iPhone 4 charger
3. iPhone 3GS charger
4. Blackberry Curve charger
Not tried any other micro-usb cables yet but will do at some point in the future.
I had the same problem too. The battery was suspiciously showing high levels for the last three days (went without a charge!). In the morning, the alarm did not go off, and I realised the battery was dead dead! Charged (wall charger) for 1.5 h without any use -- would turn off if I unplugged. Tried with the USB cable too (connecting to computer) and no use.
I read this post, and tried with the wall charger again, and it shows me ~60% battery, and seems to be charging normally!
Will post an update, but really seems like a forced discharge cycle to me too!!
Thanks for this thread, and I am interested in seeing if any more ppl are seeing such issues!
At least once, but sometimes twice a week, my battery keeps discharging while my Omnia 7 is attached to USB. And even the icon shows it should be charging.
The solution I use is taking the battery out for 10-15 seconds, put it back in, switch the device on, and charging works like it should be.
I hope they come up with a solution, because it's quite annoying.
Willem
Netherlands

Anyone have charging problems with Note 4 ? No fast charging , not charging at all

HI everyone Anyone have charging problems with Note 4 ? No fast charging , not charging at all?
I was having an issue with no fast charging. Changed the usb cable and blam, works like a charm now. Check your cables first before buying a charger.
amd-dude said:
I was having an issue with no fast charging. Changed the usb cable and blam, works like a charm now. Check your cables first before buying a charger.
Click to expand...
Click to collapse
Everything was working fine for me and than before 2 days for no reason fast charging don't work for me for no reason with my original cable and adapter for fast carge. I tryed carge on other 5 cable and adapters and the phone don't won't even charge at all ...nothing happens when I plug in ....only on original charger start charging and 2 min later start discharge and pop up message if I want to share power (give power to other device )???
In the end my phone died and I couldn't charge it to start up ...so I buyed external battery charger for note 4 and charge battery , and Flash PIT file + original stock rom in 1 flashing process and now charging on all 6 chargers with no problem.
I was trying with flashing 4 different stock firmware but didn't help until I included PIT file.
Before I across charging problem I was running Kybi note 5 port and was working week's normally.
Now I'm afraid to run any custom rom ...lol
Humm that's a strange problem to have. You can check under the battery setting in settings and make sure fast charging is checked.
One night i was charging my Note 910g as per normal using the fast charger. The next morning it died off and when i press to turn on, it warned me that there was a high temperature of over 90 degrees and therefore caused the shut off. From then on i cant charge using the usb port on the phone. My laptop cant detect the device so ended up charging using the portable cradle. Found out the charging port on the phone shorted. So i ordered from eBay and have it fixed cause i cant send to Samsung even it is only 5 months old due to tripped knox status.

Nexus 7 2012 Grouper car install problem

Hello guys how are you all doing?i am trying to get my nexus 7 2012 grouper work with autodroid 1.2.finally managed to install the rom.but I have a couple of issues
When I am driving,instead of the tablet charging via otg,it continues to drain battery.
When I turn the car off and the tablet goes to sleep mode,after 3/4 hours when I go back to the car and turn the car on,the tablet won’t boot up.i can hear my navigation voice but black screen.
And most of the time when I go back to the car after some few hours the tablet would be dead dead and have to take it out and charge it.
I like autodroid because of the option to have the media buttons on the Navbar,timurs rom don’t have that option it has only for volume (correct me if I’m wrong) for 2012 nexus 7.
What could be the course if the battery drain?i want to take the battery out and connect the tab to my car battery directly using the right dc converter but I am afraid it will also drain my car battery.any suggestions and help are welcome.thanks in advance for the answers
John8919 said:
Hello guys how are you all doing?i am trying to get my nexus 7 2012 grouper work with autodroid 1.2.finally managed to install the rom.but I have a couple of issues
When I am driving,instead of the tablet charging via otg,it continues to drain battery.
When I turn the car off and the tablet goes to sleep mode,after 3/4 hours when I go back to the car and turn the car on,the tablet won’t boot up.i can hear my navigation voice but black screen.
And most of the time when I go back to the car after some few hours the tablet would be dead dead and have to take it out and charge it.
I like autodroid because of the option to have the media buttons on the Navbar,timurs rom don’t have that option it has only for volume (correct me if I’m wrong) for 2012 nexus 7.
What could be the course if the battery drain?i want to take the battery out and connect the tab to my car battery directly using the right dc converter but I am afraid it will also drain my car battery.any suggestions and help are welcome.thanks in advance for the answers
Click to expand...
Click to collapse
When I tried using the N 7 as a navigator, I found the battery going down as you describe. I found that in my case, the car's usb port was giving out a very low charge (less than 1A) which was not sufficient for the Tab's screen as well as the battery to be charged. Screen off the Tab and check if the car usb is charging it.
My solution was to use the 12V cigarette lighter port with a converter to give out atleast 1.5A.
tnsmani said:
When I tried using the N 7 as a navigator, I found the battery going down as you describe. I found that in my case, the car's usb port was giving out a very low charge (less than 1A) which was not sufficient for the Tab's screen as well as the battery to be charged. Screen off the Tab and check if the car usb is charging it.
My solution was to use the 12V cigarette lighter port with a converter to give out atleast 1.5A.
Click to expand...
Click to collapse
Hello there thanks for the reply.i took the battery out and connected the tab to the car battery using dc-dc no battery mode.when I turn the tablet on it shows 100% but then it starts dropping.so even without the battery the percentage drops down.dont know why it’s dropping because the tablet is in no battery mode connected direct to the car battery.what could the issue be?could it be the battery’s pcb ?
John8919 said:
Hello there thanks for the reply.i took the battery out and connected the tab to the car battery using dc-dc no battery mode.when I turn the tablet on it shows 100% but then it starts dropping.so even without the battery the percentage drops down.dont know why it’s dropping because the tablet is in no battery mode connected direct to the car battery.what could the issue be?could it be the battery’s pcb ?
Click to expand...
Click to collapse
How did you connect the N 7 to the car battery? Through the car usb which you connected directly to the car battery or through a converter/adapter? Either way, obviously the current sent to the N 7 is low. Measure the output and ensure that it is atleast 1.5A.
tnsmani said:
How did you connect the N 7 to the car battery? Through the car usb which you connected directly to the car battery or through a converter/adapter? Either way, obviously the current sent to the N 7 is low. Measure the output and ensure that it is atleast 1.5A.
Click to expand...
Click to collapse
I connected the tablet to a dc dc 5v 3A or more if not mistaken.it the same I used for my nexus 7 2013 and never had issues with that(unfortunately the screen cracked)

Nexus 10 battery draining faster than charging when in use - fixable?

Hi,
I just picked up a used Nexus 10 for an app I'm building. I specifically needed this tablet as it an NFC reader both on the front and back of the device. Everything was great until I realized that the battery drains faster than it charges with the screen on and in use. I am using the POGO charger with what I believe is the stock Samsung plug (output 2A).
I've done some searching and it seems that this is a known issue with this tablet. Are there any known solutions?
Will buying and installing a new battery remedy this? I don't even necessarily need it to charge back up, I just need it to hold steady at its current charge while the screen is on and in use. Thank you!
OK, I realized this is because I simultaneously have a micro USB cable plugged in to a serial device and am using the Nexus 10 as an OTG host device - so even though it shows charging, it's actually not charging at all it appears hence the draining. If I unplug the micro USB device (which supplies its own power, even), the Nexus 10 begins incrementing battery %, slowly but surely.
I will try getting a Y cable for the micro USB portion per a thread I found on androidcentral.

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