yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Nexus] Oarsman05:
My wife and I both got new Verizon Galaxy Nexus phones about two weeks ago. Having heard of the poor battery life, I immediately bought an official Verizon extended battery; wife stayed with the stock one. After both of us set up our phones and went through a few charge cycles, I noticed something odd: while her battery would last 24-36 hours with mid-level use, mine would die within 9-12 hours with minimal use (it has never made it overnight).

My first thought was that some widget or app was syncing or otherwise waking the phone when it shouldn't, so I removed all the widgets from my homescreens and disabled all syncing but Gmail, Google Calendar, and Google Contacts. I also turned the screen down to minimum brightness. Still had the fast discharge issues.

Next step: uninstall all apps that I've downloaded. Battery still drains too fast.

Finally, I did a factory reset of the phone, and did not download any new apps. I thought maybe there was some deeper setting that I had overlooked that was causing the issue. After the reset, the battery had its worst performance yet at ~9.5 hours with bare minimum use (mostly overnight). Wife's phone was still going strong with about 34 hours of usage.

I am in wifi coverage all day (except when driving to/from work), so I have kept that on. Bluetooth and GPS have been off the whole time. Average time without signal is ~2%. 4G is also on. I also tried 1-2 charge cycles with the regular battery to make sure that it wasn't just a faulty extended battery, but it predictably resulted in even worse discharge time.

I have kept track of the battery usage stats both in the standard Settings as well as Badass Battery Manager, but nothing has seemed out of the ordinary. Right now I am charging up my wife's standard battery in my phone, and she is using my extended battery, to make double sure that I didn't just end up with two bad batteries.

Both of us are using stock ICS 4.04, and are not rooted.

She uses her phone for Google Talk, Facebook, Tamadroid (Tamagotchi app), etc. throughout the day (don't have more exact usage stats at the moment), while mine has been sitting practically unused for the last few days while I try to see if my various steps work, so the top drainers have been (in order) Mobile Standby, Phone Idle, and Screen On.

Last night when we went to sleep, my phone was at ~70% on the extended battery, and hers was about 14%. This morning, mine was dead and hers had 5% left.

Is there anything else I could have missed that could contribute to this issue? Unfortunately I do not have access to to my actual usage graphs/stats right now, or I would link them. Any help would be greatly appreciated. Otherwise, it's back to Best Buy to exchange for a new phone.

UPDATE: This was a hardware issue. Exchanged phone and saw immediate, drastic improvement. See my last post for more detail:

http://xdaforums.com/showpost.php?p=30778596&postcount=32
[Samsung Galaxy Nexus] Stealthz:
It sounds like the battery to me. Not all batteries are created equally. The quality of the components is going to directly lead to the discharge rate, degradation over time, etc. It sounds like the battery you were sold sucks and the stock one would probably work better.

I certainly can't think of anything else you can try. It would seem that swapping batteries with your wife for a day would tell you for sure if it's something to do with the phone or the battery.
[Samsung Galaxy Nexus] Oarsman05:
I am going to swap out the battery at a Verizon store later tonight, and see if it works any better.
[Samsung Galaxy Nexus] nexusman2:
To make a better comparison, compare screen usage as it is the big eater of the battery. You should find it on battery usage.

My galaxy Nexus can ve 2h30 with screen on (+ intensive app using) to get 0% from 100%
[Samsung Galaxy Nexus] withbloodskies:
Its hard to say why.. but is there anything wrong with the network on your phone? My brother got one, his dropped signal every 2/3 minutes and the battery lasted at least 4-6 hours, you can also check to see what your phone is using in the battery section in settings.

bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1
[Samsung Galaxy Nexus] Oarsman05:
Got a new extended battery from Verizon, and it seemed to be working a lot better during the day. However, once I went to sleep the charge dropped like a rock! I am doing a new charge cycle with Badass Battery Manager watching over it, and will post pictures when it is done. I have no apps other than fully updated stock apps and the battery manager. This is incredibly frustrating because my wife's phone is not experiencing any issues overnight. It is looking more and more like this is a faulty handset... :(
[Samsung Galaxy Nexus] Oarsman05:
Got some usage stats now. Here is the first full cycle on the new extended battery; seemed pretty good at about 1d 5h. Unfortunately, it has gone downhill from there.
[Samsung Galaxy Nexus] Zepius:
looks like your phone was working for a signal alot of the time.
[Samsung Galaxy Nexus] Oarsman05:
Here are the results from the next cycle; there is already a noticeable drop to just over 22h.
[Samsung Galaxy Nexus] Zepius:
yeah you have terrible signal. your phone is trying to push for a better signal, which causes more power drain.

if you look at your signal graph, you hit red signal, which is near dropped signal range.
[Samsung Galaxy Nexus] Oarsman05:
This is from last night. After letting the battery completely discharge, I recharged it while the phone was off. It hit 100% around 12:30AM, when I went to sleep. Fast forward to 8:00AM, and the phone has discharged 66%! Obviously, I was not answering calls/texts/etc. during this time.
[Samsung Galaxy Nexus] withbloodskies:
Yup, he seems to have a lot of horrible coverage in his area or his phone is in a terrible spot where there is hardly any signal.

Test your phone around your town or home.

Your signal should pretty much look like this

I'm usually full bars, rarely do I drop below to three.

If it helps, disable 4g until you need it.. it will saviour some of your battery.

bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1
[Samsung Galaxy Nexus] Oarsman05:
This makes sense, but for that my wife's phone is usually in the same general area and is getting significantly better life. Could the signal difference at my work compared to home really cause that big a discrepancy? I am usually at 3 bars, according to Phone Radio's settings. This would also not account for the massive overnight drain that her phone does not experience 6 feet away.

I installed Badass Battery Monitor and CPU Spy on her phone for comparisons; I will check her signal levels when I get home.
[Samsung Galaxy Nexus] withbloodskies:
Well I hope its not a hardware issue on your phone.

I've seen way too many people having this issue recently.. .My literally only issue is my screen, its covered in tint. Yellow, red, blue, purple :/ funny I get a perfect hardware phone and get a ****ty screen. Not going to return it to take chances.

Its possible you may need to update your radio - depending on it, for various users it has different effects on battery life and signal.

Anyway looking forward to the results.

bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1
[Samsung Galaxy Nexus] Oarsman05:
The radio would affect the "time without signal," right? Last night (66% drop in ~7.5hr) it said I was without signal for 4% of the time.
[Samsung Galaxy Nexus] withbloodskies:
Someone correct me if I'm wrong but.. the RADIO should help or make your coverage "signal" worse. If its hardware or just horrible signal the % loss should be a lot higher with normally about an hour of screen on it should show around 20-40% signal loss.

Normally signal loss is around 2-4%.

I would keep an eye on your signal bar "on the status bar" if it drops - plummets to an empty bar with an × then its possible you have a hardware issue. If it don't drop or if it does check the signal loss occasionally to see how much is lost.

If its horrible signal I do suggest a new radio to help you, if you dabble in the radio world.. please read carefully on them. They can cause serious issues if you get a bad download or wrong download "md5 mismatch". At the least harmful it can boot but without any type of signal etc.

Its easy to use but can be dangerous to your device if not handled properly :p

bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1
[Samsung Galaxy Nexus] jfriend33:
Mine is 4% loss also. I've never noticed any significant differences in battery life going from the cornfields to the city.

This phone is known for radio issues. It's pretty disappointing but I've just grown used to it.

Which radios are you currently on? Settings, about, baseband. Should say fc04 fc05 if you're on the latest.

Some people have better luck with different radio combinations depending on their phone.

From your battery Stats its like you barely use your phone. Could you show a screen shot of cpu spy?

Would you consider a different rom and kernel?
[Samsung Galaxy Nexus] withbloodskies:
Assuming you mean me, give me a few hours? Gonna throw on a full charge and wear it down. I'll give my screens of my phone when its near dead, I heavily use my phone. I'm surprised I was on 2hours with half battery after watching videos.

bOx Stash - https://www.box.com/shared/d8a46b7252c38069deb1
[Samsung Galaxy Nexus] Oarsman05:
I have the same baseband as this image. I just added CPU Spy this morning. I will add some screenshots of it after my next full charge cycle.

If it is a faulty radio, would it be in my best interest to exchange the phone at Best Buy? I have about another week to do that if necessary.
[Samsung Galaxy Nexus] General Crespin:
I'm having similar issues, although it doesn't seem as bad. I'm going to take the chance of exchanging it because I also have 4G dropping issues, because like you said, we've got a week, and I'll exchange the phone as many times as I need to until I get a *new* one without any issues. :p

Kind of disappointing, my screen seems great.
[Samsung Galaxy Nexus] withbloodskies:
Okay here you go, my pictures for battery.

I got about 3hours + heavy use, constantly on Facebook, tapatalk, media. Somehow I got away with 0% brightness with a really bright screen so this has saved me a lot of battery.

Right before death I gained about 40+ minutes
[Samsung Galaxy Nexus] Oarsman05:
Removed all extraneous apps and did one more overnight comparison between my phone and my wife's Mine went from 88% to dead, hers dropped maybe 20%. Mine is staying awake all night, hers is behaving as it should. They're about 6" away from each other at night, so their signal reception should be similar. Looks like I have a faulty hardware unit after all.

(Note: The gap in my graph is from turning on airplane mode between charging and bedtime to make sure I had enough power to start an overnight test.)
[Samsung Galaxy Nexus] withbloodskies:
Ehh.. I'm not seeing anything hardware related here.. looks more like an app issue. Can you give me your app list of what was used on the graph?

I ran into a issue like this too, the app was double twist. Turns out it woke itself no constantly and drained my battery till death. On my droid incredible anyway.. but if its not an app issue.. its possibly a ROM issue. Cause yeah the signal looked fine, didn't see any odd drops or anything. But it shows your phone is constantly being woke up, there is something on there waking the phone up.
[Samsung Galaxy Nexus] Oarsman05:
Here is the list of everything running overnight. I should also note that I turned off Sync in the ICS widget. Let me know if you need info from a specific entry. I am on a completely stock Verizon ICS ROM. I don't know how it could be an app issue, but I've listed below everything that is installed. Chrome is the only app that did not come stock.

Installed Apps:

Calculator

Calendar

Camera

Chrome

Clock

Downloads

Earth

Email

Gallery

Gmail

Google+

Latitude

Local

Maps

Messaging

Messenger

Movie Studio

Navigation

News & Weather

People

Phone

Play Books

Play Movies & TV

Play Music

Play Store

Search

Settings

Talk

Voice Dialer

YouTube
[Samsung Galaxy Nexus] Zepius:
your phone is keeping the phone awake. try this. change SIM cards out from your gfs and your phones so your SIM is in her phone and her SIM is your phone for the night.

you might have a bad SIM that is constantly re-authing your phone to VZW.
[Samsung Galaxy Nexus] withbloodskies:
No root? Honestly I'm not sure about ICS ROMs.. the issue is clearly invisible. Hmm.. very odd. I guess it could be a hardware issue, everything looks completely stock and normal. Assuming your wife's phone is the exact same " stock, no root etc. "

Kinda puzzled.. I do know ICS isn't the greatest ROM for the nexus. But still odd.

Edit: could you give me a screen of inside phone idle and cell? Or what he said above.
[Samsung Galaxy Nexus] Oarsman05:
No root, no unlock, nothing on either phone. I wanted to iron out this issue before introducing more confounding variables. Here are the Phone Idle/Cell Standby stats.
[Samsung Galaxy Nexus] withbloodskies:
I would try this when you get the chance, I have heard of bad sims.

Probably last resort, your phone honestly seems extremely normal.
[Samsung Galaxy Nexus] Oarsman05:
The Verizon store wanted $25 for a new SIM card, so I just exchanged both the handset and the card at Best Buy. I will keep track of it over the next few charge cycles.
[Samsung Galaxy Nexus] Zepius:
if its a bad sim, i would tell them to cram that $25.
[Samsung Galaxy Nexus] najaboy:
It sounds like you weren't actually in a Verizon store, as they don't charge for SIM cards. Go to an actual corporate store and not a reseller and you should get taken care of without issue.
[Samsung Galaxy Nexus] Oarsman05:
After two charging cycles, it looks like this was definitely a hardware issue. The first time I got just over 2 days, with the battery's starting at about 80%. Next time (still on this charge as of posting) I hit 15% after about 1d:17.5hr, which included 2 hours of work conference calls. Big improvement from ~9 hours!

Unfortunately, since I swapped out the handset and SIM card at the same time, I can't say for sure which one was bad. However, it was clearly one of them.

Since Best Buy is still running the free phone promotion, I'm thinking there are probably a lot of new Galaxy Nexus owners out there. So, if you are seeing this kind of battery drain and you are within your return/exchange period, swap it out ASAP!

Thanks to everybody who helped out with suggestions!
[Samsung Galaxy Nexus] General Crespin:
On the battery graph, is your signal strength indicator still yellow or is it green on the new phone?
[Samsung Galaxy Nexus] jfriend33:
I've never heard of a SIM card causing issues like these... EVER.

I can gamble 75 percent of your battery improvement was due to you starting on a new phone, fresh start. I see those types of improvements when I wipe data factory reset.

You should get Better Battery Stats and show us after a day of use, the partial wake locks since charged.

Hopefully the exchange fixed radio issue.
[Samsung Galaxy Nexus] donsh00tmesanta:
What is your on screen time

---------- Post added at 08:22 PM ---------- Previous post was at 08:18 PM ----------

I think I will have to take my phone to sprint and ask for a replacement
[HTC Inspire 4G] brndnddge:
This is the first time this has happened to me and I figured I would share with XDA. Last night I was attempting to take a photo on my device outside in the dark. My battery on my device was only at 6%. When my battery gets low, my flash wont work on my phone. I thought I would be smart and turn torch on then go into camera and take my photo... Well needless to say, my phone power-cycled on. When my phone came back up, I went to my gallery to view the photo I took because it did snap. Well, all my photos were gone. Missing in Action.

Apparently when my phone power-cycled it dropped a file on my SD card called ".nomedia" This file was blocking my camera and my gallery from seeing photos on my SD card. What a shame. All I had to do was delete the.nomedia file. See image below to what it looks like.

*Edit*

After deleting this file and un-mounting my SD Card and re-mounting it, I could see the images in my gallery.

Cheers
[HTC Inspire 4G] Teichopsia:
After you deleted that file you were able to see the pics again?

Sent from a dream.
[HTC Inspire 4G] brndnddge:
Would have helped if I mentioned that. Yes I could :D
[Streak 5 General] peacecorpsteve:
After using my unlocked Streak 5 on T-Mobile for over a year (seemed like an eternity at 2G speeds) I just picked up a T-Mobile Galaxy Note.... Wow, what a different experience! I wish you all the best here
[Streak 5 General] deysmacro:
wish you a great happiness with your new toy :D
[Acer Iconia A500] FCBelser:
Am I stuck in APX mode with no USB connectivity and how do I get out of this? Here is what happened:

A500 with OTA Android Build: Acer_AV041_A500_1.033.00_PA_CUS1

Windows 7x64 with UAC turned off and restarted OS

- Launch Afterota v1.09

- Info tab > Install Driver ... "ACER ICONIA 3G DRIVER INSTALL"

- Boot A500 > ENABLE USB debugging

- Plug USB cable into A500 ... "Acer Iconia Tab A500 ... Your device is ready to use"

- Tablet Information ...

Tablet Serial	: 11933073415

Tablet Cpuid	: 028841854280E4D7

Tablet Sbk	: 0x15290000 0x7FC6C006 0x47E52404 0x302C2103

Android Build	: Acer_AV041_A500_1.033.00_PA_CUS1

Bootloader	: 0.03.12-ICS

- Save Values to AcerIDs.txt

- Standard tab > Bootloader Ics v3.14.8 + Recovery Thor v1.7.3 > For A50X

- Install sys rw patched kernel (sys rw patch only, no overclocking)?

- Yes > OK

- A500 boots to APX Mode

- Afterota status ... flashing (about 1 minute) ... idle (no further activity ... ever)

A500 screen is BLACK, Power LED is ON, all the Afterota buttons are grayed out except for Unsoftbrick Browse.

Driver: OK - driver installed

Usb: ERROR - connect usb cable and enable usb debugging

I've tried reinstalling the USB driver multiple times and using different USB ports with no luck. I can turn A500 on and off by holding down the Power LED button for 3 seconds, but still a black screen.

Any ideas will be appreciated
[Acer Iconia A500] dibb_nz:
May have a possible Fix for you

EDIT: OK May have a possible Fix for you I've just run this myself from apxmode and it worked for me...give it a whirl and see how you go!!!

check this thread here

##############################################################

the 'mode' yr tab is in now - black screen with power lite....

i'm sure its waiting for the apx driver to load this will enable yr tab to enter the next stage where the flash takes place..(this stage is called different things depending on which tool u use...which doesn't help matters at all...) you will know when u enter "the next stage" because yr tab will display some white text "a500 apx mode" or "acer download mode" even "a500 bootloader mode" they're all the same -

so if u do not have the white text displayed the only conclusion one can come to is that the required driver cannot be found....(if I'm wrong on this then please put your 2cents worth in and maybe we can get this problem solved once and for all)

you need to have the "acer usb-boot recovery driver" displayed in your system tray under safely remove h/w or in device manager. Is it there....?

Device manager is yr friend always have it open when trying to troubleshoot flash issues.

connect yr tab to yr pc with yr mini usb data cable - the flash will definietly not happen if you're using a regular sized usb cab le!!!!

is the driver listed under usb controllers?

is there an "APX Device" listed?

if not disconnect and power yr tab off

then enter apx mode manually and reconnect cable and see if the boot-recovery driver installs itself - if it doesn't then reinstall the acer drivers....again!

also if it hangs on the black screen again

always disconnect yr usb cable close the program down and try again.

your other choice is to use civs nvFlash cos it requires yr tab to be in apx mode first - if it fails it will show you an error which will help

There seems to be alot of ppl of late getting stuck in this mode...and there seems to be no real solution to it.....sometimes you just have to keep at it until it works... if all else fails then u may need to downgrade back to HC and try from there!!!

Please let us know how u get on....

cheers

EDIT you need the android drivers too - theres a zip file in my cpuid thread if u need them
[Acer Iconia A500] FCBelser:
I've tried your suggestions, only using AfterOTA so far ... still no success.

These are the steps I've been following:

1) Disable UAC > Restart

2) Run Afterota.exe

3) AfterOTA (Info tab): Install Driver

4) Power on A500 (screen is still black, Power LED is white) ... plug in micro-USB cable from PC ... "driver successfully installed"

5) AfterOTA (Advanced tab): Unsoftbrick ... browse to ... recovery_thor17_403.img

6) AfterOTA (Advanced tab): Unsoftbrick ... browse to ... ics_boot_unlk_V6_500.bin

7) AfterOTA (Advanced tab): Unsoftbrick ... Install

[1/3]loading apx mode bootloader

[2/3]flashing recovery ..

This is where it gets stuck. No vibrating, the screen remains black (no text), nothing even after 5 minutes. I've repeated steps 5-7 trying two different USB cables plugged into the A500 micro-USB (small) port and also connected to different USB ports on my PC. Each time I shut down AfterOTA, unplugged the USB cable, powered off A500 ... then try again. I've also tried uninstalling and reinstalling the USB driver using AfterOTA.

Every time A500 is powered on and connected to USB ...

- "Acer USB Boot-recovery driver" is listed in Device Manager, USB controllers

- "APX" is listed as an Unspecified device in Devices and Printers (not in Device Manager)

- "Usb: ERROR - connect usb cable and enable usb debugging" listed in AfterOTA (Info tab)

It appears AfterOTA can't establish communication over the USB connection.

The very first time I used AfterOTA, A500 was still able to boot to ICS, the USB connection was OK and I was able to retrieve the Acer IDs and save them to a txt file. It was only after flashing "Bootloader Ics v3.14.8 + Recovery Thor v1.7.3" that I got the "Black" screen. It appeared the flashing was successful, as it had completed step [5/5] and then showed status "idle .."

I guess first priority is to find a something (maybe other than AfterOTA) to see if it can communicate with A500. Haven't tried civs nvFlash ... yet.

Thanks for your help.