Is the battery dead? - Nexus 7 Q&A, Help & Troubleshooting

My Nexus 7 was flashed with MIUI a week ago, I tried getting new ROM to flash it it went bad and since then Nexus 7 was off (so around a week in bootloader screen).
I got time today so flashed Fusion ROM, N7 reboots immediately after booting since battery is 0%.
Stock ROM runs until power/USB is connected.
Does this mean my battery is dead? If yes what are my options. If no what can be the solution?

wis3m0nkey said:
My Nexus 7 was flashed with MIUI a week ago, I tried getting new ROM to flash it it went bad and since then Nexus 7 was off (so around a week in bootloader screen).
I got time today so flashed Fusion ROM, N7 reboots immediately after booting since battery is 0%.
Stock ROM runs until power/USB is connected.
Does this mean my battery is dead? If yes what are my options. If no what can be the solution?
Click to expand...
Click to collapse
Is it running at 0% or are you talking about the battery life?

duffieldj1 said:
Is it running at 0% or are you talking about the battery life?
Click to expand...
Click to collapse
It was running at 0% even after attaching usb it didn't seem to be charging.
But I think it was a false alarm, had to connect ac charger and let it stay for around 6 hrs. Now it is working just flashed fusion rom again, will update over here
Sent from my LG-LS970 using xda premium

Related

Droid X battery fail

So I bought the official Motorola extended battery. I've followed ever freaking guide there is to resetting the battery and all. I still have issues with my battery, multiple roms, wipes, resets haven't helped. I unplug my charger at 7am, by noon I have 10% or less left. It stays low till it turns off sometime the next day.
What am I missing.....
That's very odd.
I know that you stated you had already tried a battery wipe, but just to be careful:
Charge to 100%
Let it run completely dead
Charge to 100% without turning the phone on
Wipe Battery Stats
Also, there's more information I need to post here, and what rom are you using?
Sent from my DROIDX using XDA App
I'm running MUI, latest build. I don't think it will charge with the phone off will it? On this rom I mean.
the 2nd Init ROMs won't charge while off. You should try putting up with a stock ROM for a day while you troubleshoot the battery. If you can correct the issue using the above method you should be gtg. Once it's fixed install MIUI on a full battery and do a battery wipe.
Ok so I flashed back to Libery .9. Charging from fully dead now while off.
zehkaiser said:
the 2nd Init ROMs won't charge while off.
Click to expand...
Click to collapse
Why not? It is nice to have always-signal available though
The miui rom drains the battery quite fast I have the extended life and I get about a day with miui. when I switch to cm7 I get about 3 days its the rom itself unfortunately
Sent from my Xoom using XDA Premium App
It's the roms more than likely.
rocko73 said:
It's the roms more than likely.
Click to expand...
Click to collapse
Not sure what it was, I sbf'd, updated to the latest greatest and it still didn't work. Gave up on it, bought a Bionic when it came out

[Q] Battery drains very quickily, charges very slowly

My Nook is suddenly taking about 12+ hours to charge, with the OEM cable and plug. I couldn't get it to charge at all at first. I did finally get it fully charged, and it instantly jumped from 78% battery power to 30%. I had tried to clear the battery thing in recovery mode, which might have made things worse.
It doesn't appear to be going into sleep mode, either, as after the 30% jump, I turned off the screen, and the next morning, it was completely drained. Am I looking at a dying battery?
Using one of the latest CM7 nightlies. The problems started after a few weeks of it working fine with the new ROM.
How old is your nook and is it one of the version 1 or version 2 releases?...I had a version 1 doing the exact same thing. Luckly I was still under Warranty and was able to get a replacement, which is the version that was released mid may of 2011 I think. And it had the 5gb data 1 gb media partition...its bwwn working fine and I'm running the cm 7.2 kang w/ mirage kernel.
Sent from my R800x using xda app-developers app
Clear battery stats
d00med said:
My Nook is suddenly taking about 12+ hours to charge, with the OEM cable and plug. I couldn't get it to charge at all at first. I did finally get it fully charged, and it instantly jumped from 78% battery power to 30%. I had tried to clear the battery thing in recovery mode, which might have made things worse.
It doesn't appear to be going into sleep mode, either, as after the 30% jump, I turned off the screen, and the next morning, it was completely drained. Am I looking at a dying battery?
Using one of the latest CM7 nightlies. The problems started after a few weeks of it working fine with the new ROM.
Click to expand...
Click to collapse
Let it completely discharge (screen shuts off and Nook is non-responsive) and then charge it up fully. Any battery problems come after flashing and this method always fixes things.
brsingr said:
How old is your nook and is it one of the version 1 or version 2 releases?...I had a version 1 doing the exact same thing. Luckly I was still under Warranty and was able to get a replacement, which is the version that was released mid may of 2011 I think. And it had the 5gb data 1 gb media partition...its bwwn working fine and I'm running the cm 7.2 kang w/ mirage kernel.
Sent from my R800x using xda app-developers app
Click to expand...
Click to collapse
It's about two (?) years old and version 1. Doubt it's under warranty anymore.
unibroker said:
Let it completely discharge (screen shuts off and Nook is non-responsive) and then charge it up fully. Any battery problems come after flashing and this method always fixes things.
Click to expand...
Click to collapse
Trying that. Thanks.
d00med said:
It's about two (?) years old and version 1. Doubt it's under warranty anymore.
Trying that. Thanks.
Click to expand...
Click to collapse
Hmm ok, well let us know.
Sent from my R800x using xda app-developers app
Im having the VERY SAME prob., my nook is the version 1 with original and non-original Wall & Car charger, got it not to long after it came out, since no one posted more info i will try to have the battery dead as a knob and post the results
meantime any other ideas........ my prob started 2 months ago, been running CM7.2/CM9 Dualboot but gonna just change over to CM 7.2 now.
to run the battery fully down im going to just use the Nook Color Stock

[Q] Cannot wake up device from sleep

So I've had this problem for some time maybe a couple of weeks.
The problem is that I sometimes cannot wake up my device after setting it down for sometime. For example if I go to sleep get up the next morning and then screen will not turn on. I have to hold power button down for multiple seconds and press it multiple times. Also one recent occurrence of this there was massive battery use. See attached photo.
If anyone knows why this is occurring or knows any remedies that would be appreciated.
Using PA 2.54
Franco Kernel
I can provide more information if needed. Just ask.
Thanks
Sent from my Nexus 7 using xda app-developers app
I was having serious issues with my 16gb. Very hard to turn on, sometimes hold power for 10 seconds, sometimes 30, sometimes 5.. all over the place. And it only started after I believe the 4.2 update.
Also, it was draining battery while off. Charge it overnight, leave it off the entire time, come back 8 hours later. Turn it on and only have 50% battery.
Sometimes the charging animation would lock up while off as well. And if the device was turned off, and you plug it in to charge, it turns on. It shouldn't.
I think I've narrowed it down to the bootloader. My bootloader was at 4.13, and Flashing the 4.2.1 and 4.1.2 factory images didn't help.
Last night I finally fixed it. I ran the 4.1.1 factory image. Which put the 3.34 bootloader back in place. This wipes the device. So I flashed the recovery back and then reflashed Paranoid Android 2.99B6. All is good now, it turns on like it should, doesnt come on when plugged in, etc.
Meanwhile a new 32gb I have I can flash the 4.2.1 factory image, and I have no issues with that one.
Which bootloader are you on?
Hmm. That seems to be the exact same issue I have!
I just checked my bootloader and I have 3.41. But I never went up to 4.2. I stayed at 4.1.2 with PA 2.54.
Hmm. Maybe I'll try what you tried!
Sent from my Nexus 7 using xda app-developers app
kazemitsui said:
Hmm. That seems to be the exact same issue I have!
I just checked my bootloader and I have 3.41. But I never went up to 4.2. I stayed at 4.1.2 with PA 2.54.
Hmm. Maybe I'll try what you tried!
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
You can flash the 4.1.3 bootloader from JB 4.2 and use it with 4.1.2. I am, and it works perfectly and I never have a problem booting or bringing it out of sleep mode.
I think it was just your Franco kernel. Kernels are typically the cause.
I'm running PAb6 and no problems.
Sent from my Nexus 7 using XDA Premium HD app
player911 said:
I think it was just your Franco kernel. Kernels are typically the cause.
I'm running PAb6 and no problems.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
Hi, which kernel are you using? I just changed my bootloader back to 3.34 and my kernel to motley. See if that helps.
Thanks for the tips.
Sent from my Nexus 7 using xda app-developers app
----------------------------------------------------------------------------------
seems after flashing a new kernel to motley the problem still occurs...
I think ill factory reset. reinstall PA gapps and everything... see what happens.
anyone else have any insights into this... flashing a new kernel and it still occurs
Sometimes you have to set you're minimum cpu frequency above 200 using one of the various cpu or kernel tuners
Sent from my HTC One X using xda app-developers app
Just had this similar problem. I drained the battery to about 11% on wednesday night, so i shut it off and charged it to 100% on that very same night. Turned it on on friday night (It should have been turned OFF all this while) and it wont start. After the help of the AC charger, it came back on and found out the batt was at 0%. Which should not be the case even if the tablet was accidentally switched on because theres no way it can drain from 100% to 0% in just 2 days. And everytime i leave it plugged into AC it suddenly turns on and shuts down due to low power. Am using TWN ROM V1 (Android 4.2.1) with M-Kernel A17 kernel if that has anything to do with it.
So I think I have it figured out that if I set my wife policy to keep awake always no problems, but if it is set to keep awake only during charging, I will have problems
I will try it out on a higher cpu setting with semi awake
Sent from my Nexus 7 using xda app-developers app
Just wiped the device and flashed CleanROM 3.0 on it and NOTHING else (No extra scripts, custom kernels, radios..etc) and it seems to have been stabilized. Although the battery drained pretty quick while i was using it last night, but I was installing apps and setting up stuff on the nexus so its not a very accurate benchmark. Will continue to monitor.
Hmm, I see. Well that's great that you solved it
It seems after switching my minimum cpu to 200. It still froze when I was trying to wake it up this morning
Maybe a full wipe is needed...
Sent from my Nexus 7 using xda app-developers app
Yes you should have done a full wipe like I did. All still seems to be good on my side. Looks like for my case it was M-Kernel a17 causing the problem. I doubt such a thing would happen due to a faulty bootloader.
So I did a full wipe of my tablet and instead installed PA 2.99 b6, flashed correct gapps, then flashed the beats audio v3b2 and the same thing occurs.
im using franco kernel v30 no OC just gpu oc to 446.
my tab if i leave it unplugged and set wifi policy to keep wifi on during sleep only when plugged in I get this problem that I cannot fix... which is the tablet freezes or something and i cannot turn the screen back on until i hold the power button, Then turn it back on. Also on a side note for the first time this morning, the back of my tab was hot, which never occurred when i was on PA 2.54
Any insights on this issue anyone?
full wipe and flash a ROM that comes with the stock kernel. I did that with CleanROM 3.0 and its still working fine to this day. Will probably try flashing franco or M-kernel again when I have the time. But for now it seems that a custom kernel might be the issue here.
cr0wnest said:
full wipe and flash a ROM that comes with the stock kernel. I did that with CleanROM 3.0 and its still working fine to this day. Will probably try flashing franco or M-kernel again when I have the time. But for now it seems that a custom kernel might be the issue here.
Click to expand...
Click to collapse
Thanks for all your replies. It seems to have fixed it after updating my ROM im really not sure what happened with PA 2.54 but with PA 2.99b6/8 it has not freezed at all, but then again the min cpu freq i have is at 340 heh...

Battery charge values

Hi all!
I've some strange problems with mt nexus 4 battery values.
Today i had 59% of battery and i plug it to the original charger. After 2 hours i saw the battery with 100% charge value. OK. Nothing wrong here. I rebooted the phone and after that i had 84% of battery.
This is happening almost every time i charge my nexus 4.
I had stock rom with franco.kernel updater. Now i have paranoid Android with The same kernel.
Any idea about this?
Sent from my Nexus 4 using xda app-developers app
anyone?
Have you been dirty flashing a lot?
your battery reading needs to be recalibrated.... Charge full than use until it shuts down...than charge again fully, at 100% reboot phone & connect to charge again.....
You also can try "BatteryRepair.apk" from market..most of the time it helps to recalibrate..just install, open & follow on screen instruction....
steci86 said:
Have you been dirty flashing a lot?
Click to expand...
Click to collapse
Not really. Just rooted the phone 3 weeks ago and i was with stock + franco.kernel updater till 1 week ago. Then changed to Paranoid Android + Franco.kernel.Updater.
abir099 said:
your battery reading needs to be recalibrated.... Charge full than use until it shuts down...than charge again fully, at 100% reboot phone & connect to charge again.....
Click to expand...
Click to collapse
I'm trying this right now. At 1h07am the battery had 0%, so i connected to the original charger and did go to sleep. When i woke up, it had 100%. I rebooted the phone, connected the charger again and the phone had 90% (This at 8am). 2 hours later the phone is at 97%.
abir099 said:
You also can try "BatteryRepair.apk" from market..most of the time it helps to recalibrate..just install, open & follow on screen instruction....
Click to expand...
Click to collapse
I couldnt find this on market :/
Atomsk said:
Not really. Just rooted the phone 3 weeks ago and i was with stock + franco.kernel updater till 1 week ago. Then changed to Paranoid Android + Franco.kernel.Updater.
I'm trying this right now. At 1h07am the battery had 0%, so i connected to the original charger and did go to sleep. When i woke up, it had 100%. I rebooted the phone, connected the charger again and the phone had 90% (This at 8am). 2 hours later the phone is at 97%.
I couldnt find this on market :/
Click to expand...
Click to collapse
I had the same issue with my previous nexus 4. Did you ever get your screen/display changed? Or do you charge your phone overnight? Do you rely on USB charging a lot? If any of those answers is YES, its probable that your battery has gone bad (as mine had)
I don't think that's the solution, but give a try to this free app from the play store: https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=it
I always thought this problem was related to rom development but I'm not sure. It happened to me with CM11 at the very beginning in november, and then it just stopped. Since January I'm on slimkat, at first it didn't happen and then for a few weeks i noticed the same problem you have, now everything has been fine again for the last two weeks.
japmeet said:
I had the same issue with my previous nexus 4. Did you ever get your screen/display changed? Or do you charge your phone overnight? Do you rely on USB charging a lot? If any of those answers is YES, its probable that your battery has gone bad (as mine had)
Click to expand...
Click to collapse
I had changed my display and i charge over night.
I've tried the calibration 2 days in a row (battery at 0%, then charge till 100%, reboot, charge till 100% again). Yesterday i had 90% after the reboot. Today i got 91% after the reboot.
steci86 said:
I don't think that's the solution, but give a try to this free app from the play store: https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=it
I always thought this problem was related to rom development but I'm not sure. It happened to me with CM11 at the very beginning in november, and then it just stopped. Since January I'm on slimkat, at first it didn't happen and then for a few weeks i noticed the same problem you have, now everything has been fine again for the last two weeks.
Click to expand...
Click to collapse
I'm gonna try that app. I rebooted the phone around 9am and now is almost finishing the charge. The battery lasts till tomorrow with my normal use of the phone, but i tough strange that every time i rebooted the phone, i lose battery % :s
Just try avoiding the charge to 100%->reboot->charge to 100% again for a few days.
Don't let it discharge till 0%, connect the charge when you have 1%-4% left and let it charge till 100% with the phone on, and then use your phone normally.
Atomsk said:
I had changed my display and i charge over night.
I've tried the calibration 2 days in a row (battery at 0%, then charge till 100%, reboot, charge till 100% again). Yesterday i had 90% after the reboot. Today i got 91% after the reboot.
I'm gonna try that app. I rebooted the phone around 9am and now is almost finishing the charge. The battery lasts till tomorrow with my normal use of the phone, but i tough strange that every time i rebooted the phone, i lose battery % :s
Click to expand...
Click to collapse
Please go through this thread. A couple of other members (myself included) finally deduced that if you ever have your display changed you NEED to get your battery changed as well. Trust me on this, get your battery checked once. It WILL be bloated. Also, if upon restarting there is a break in the battery graph and there is a significant drop/rise in battery level, that is another indicator that your battery is going.
japmeet said:
Please go through this thread. A couple of other members (myself included) finally deduced that if you ever have your display changed you NEED to get your battery changed as well. Trust me on this, get your battery checked once. It WILL be bloated. Also, if upon restarting there is a break in the battery graph and there is a significant drop/rise in battery level, that is another indicator that your battery is going.
Click to expand...
Click to collapse
I've been reading that thread but for example, what happens to me it's nothing compared to the first topic of that thread. I only miss sometimes 10% after restart, sometimes 5%, sometimes nothing. From what i understand, in that thread most of users with battery problem had like 80% and after reboot they only had 2%, or 0%. Thats different i think, but i'm not expert on this subject
Anyway, installed the suggested app and calibrated the battery throw the app. For now i have this data (Paranoid Android Beta6+Franco.Kernel.Updater r201):
http://imgur.com/jnPpA3d
Just restarted my phone a while ago
http://imgur.com/ZpmXtS0
Sent from my Nexus 4 using xda app-developers app
Atomsk said:
Just restarted my phone a while ago
http://imgur.com/ZpmXtS0
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Try Battery Monitor Widget from the Market - you can see what current the phone is pulling, and if indeed full charge is reached. There are also calibration tools inside - the app calculates the real capacity of the battery, for example. If it's a long way from 2100mAh it would be a sign you need a new battery.
Though like everyone else, I think it´s a software problem. With previous Android phones I had to be careful calibrating, flashing etc. With the N4 I've had no such issues in the year I've had it. That app can help you sort out battery calibration though.
Can you tell me The dev name? Got 2 battery monitor widgets :s
Sent from my Nexus 4 using xda app-developers app
Tried this one and got this results
http://imgur.com/nb71cbI
Sent from my Nexus 4 using xda app-developers app
Atomsk said:
Not really. Just rooted the phone 3 weeks ago and i was with stock + franco.kernel updater till 1 week ago. Then changed to Paranoid Android + Franco.kernel.Updater.
I'm trying this right now. At 1h07am the battery had 0%, so i connected to the original charger and did go to sleep. When i woke up, it had 100%. I rebooted the phone, connected the charger again and the phone had 90% (This at 8am). 2 hours later the phone is at 97%.
I couldnt find this on market :/
Click to expand...
Click to collapse
Here is the link of Battery Repair....try this, it really works
https://play.google.com/store/apps/details?id=air.ynfo.batteryrepair
abir099 said:
Here is the link of Battery Repair....try this, it really works
https://play.google.com/store/apps/details?id=air.ynfo.batteryrepair
Click to expand...
Click to collapse
Thanks for the suggestion, but that's a little expensive for me at the moment
Atomsk said:
Just restarted my phone a while ago
http://imgur.com/ZpmXtS0
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Well this is perfectly normal..
Atomsk said:
Tried this one and got this results
http://imgur.com/nb71cbI
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
This looks normal, although if you see a break in the battery graph and huge drop/rise in battery then its definitely done for. However its not the case with your phone, so relax
Well this evening i left the phone with 60% of battery and at 7am the battery was death. Just ordered a new one. I've only one problem. I dont have any plastic screw to open it. I've the torx t5 screw only.
Any advise to the new battery?
Sent from my Nexus 4 using xda app-developers app

Battery drain is quite fast

Hello, I have got a Note 3 N9005 with android 5.1.1 Blisspop v4.0.3 Nightly ROM installed. Now I don't know if it's just coincidence or so but my batterynlife is just terrible since I flashed a new ROM. I already own this phone for a year btw so that could also be the case. I just took it of the charger and then I checked and it said it would last for 2 HOURS! I have been going for about 20 mins now and it already dropped 20%. I bought a new battery, but that is just worse (I did read that you have to use and charge a new battery a few times and it would get better). My battery has no bulge. Is it the battery that's bad or the ROM and should I then flash back to stock firmware?
Wow, wait, let me get my crystal ball...
TaNgLeZ said:
Hello, I have got a Note 3 N9005 with android 5.1.1 Blisspop v4.0.3 Nightly ROM installed. Now I don't know if it's just coincidence or so but my batterynlife is just terrible since I flashed a new ROM. I already own this phone for a year btw so that could also be the case. I just took it of the charger and then I checked and it said it would last for 2 HOURS! I have been going for about 20 mins now and it already dropped 20%. I bought a new battery, but that is just worse (I did read that you have to use and charge a new battery a few times and it would get better). My battery has no bulge. Is it the battery that's bad or the ROM and should I then flash back to stock firmware?
Click to expand...
Click to collapse
Most AOSP Roms are overclocked up to 2.7 -2.8GhZ. (Normal Stock clock speed is 2,3Ghz)
Use any Kernel tool from Playstore like Kernel Audiutor to change this to 2.,3 Ghz (I was also wondering but since i found out that AOSP based ROM are overclocked on note 3 I imdetialy changed back to Nornal Clockspeed)
Afte this your device should be cooler and you batterylife also longer...
xda_Noob. said:
Most AOSP Roms are overclocked up to 2.7 -2.8GhZ. (Normal Stock clock speed is 2,3Ghz)
Use any Kernel tool from Playstore like Kernel Audiutor to change this to 2.,3 Ghz (I was also wondering but since i found out that AOSP based ROM are overclocked on note 3 I imdetialy changed back to Nornal Clockspeed)
Afte this your device should be cooler and you batterylife also longer...
Click to expand...
Click to collapse
I shall try
TaNgLeZ said:
Hello, I have got a Note 3 N9005 with android 5.1.1 Blisspop v4.0.3 Nightly ROM installed. Now I don't know if it's just coincidence or so but my batterynlife is just terrible since I flashed a new ROM. I already own this phone for a year btw so that could also be the case. I just took it of the charger and then I checked and it said it would last for 2 HOURS! I have been going for about 20 mins now and it already dropped 20%. I bought a new battery, but that is just worse (I did read that you have to use and charge a new battery a few times and it would get better). My battery has no bulge. Is it the battery that's bad or the ROM and should I then flash back to stock firmware?
Click to expand...
Click to collapse
Apart of what already have replied you, you could also try downloading any battery monitor app to try guessing if it's an app or it's the system itself who is draining your battery. In case it's any app, the solution is easy, try reinstalling it, if it's not, then you should try making wipes and reinstalling the rom or try another rom.
Hope this can help you.
What were you doing with the phone in the 20 minutes? Something is definitely wrong if its drained that quick. Can you post battery status and wake locks.
Sent from my SM-N9005 using XDA Premium 4 mobile app

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