Hello people!
I've had my Nexus 7 for about 4 months now, and it started having battery problems a couple of weeks ago.
After the battery had drained completely, it wouldn't charge at all. I followed some steps to solve this problem, and managed to get it up again, but after that, charging it has been a nightmare.
To sum up:
When my tablet is on and plugged in, it shows that it's charging, but the battery slowly drains even if I don't use it for hours. If the tablet is off and plugged in it shows that it's charging, but it is not.
After it's completely drained, I have to go through the whole recovery mode, turn off, thirty second button push process to revive the tablet (which otherwise does not work at all) and let it charge while off. After that the tablet works fine, but does not charge.
I even did a factory reset, but nothing happened. Also I'm using the charger that came with the tablet.
Should I ask for a new one with my Guarantee or is there a fix for my problem?
maybe its some internal issue, if it came with a warranty. maybe go to the place where you bought it and see if they will replace it with a working N 7.
Related
I have had my Nexus 7 for a week. First two charges went well. On the first one I plugged it when it had 5% battery left, and on second charge I plugged it around 10%.
However, two days ago I was reading something in Google Currents when the message reminding me that only 15% battery was left appeared. I kept reading for a few minutes (2 or 3 at most) and suddenly the "Power off" window appeared and the tablet shut itself down and wouldn't turn on again.
Immediately I plugged the charger, and after a few seconds it let me turn it on again. It said the battery was at 14%. At that moment I unplugged the charger again to see what happened, and the "power off" message appeared as soon as I unplugged the charger. Looking at the battery graph, at the moment I unplugged the charger the graph jumps from 14% to 0% instantly.
This time I let it fully charge while turned off, and the next day I tried to reproduce the problem. As soon as it reached 15%, the "low battery" warning appeared, and in a half second, before I could reach for the charger, the "power off" message appeared over it and the damn thing turned itself off again. It seems to me more like a software problem than a real battery problem.
I've been reading about people who had similar issues on another thread, but there was no solution. Has someone found a way to solve the problem? or you just exchanged it for a new tablet?
Thanks in advance!
Are you running stock out of the box or rooted?
You need to run about three full cycles through it, that means connect the charger and do not disconnect it until its fully charged. I would then unplug it, play around for two minutes, then plug it in again for about 20 to 30 minutes. Only do this bump charging when you completely charge it the first time.
After that initial charge and connecting it to top it off (bump charging) just use the tablet as you normally do until it dies.
Then connect it to the charger when you can allow it to completely charge to full.
If you're stock, either before the above steps or afterwards, use wugs toolkit and reset the stock image. Connect the nexus to your computer, copy the sdcard folder to your computer so everything on the sdcard storage partition is backed up, then install the stock image again which will wipe and reset the tablet.
From the information you gave I think its real likely that's a software problem and resetting will fix it. You can even try a factory reset in settings before you reflash the software.
Let us know the outcome.
Sent from my Nexus 7 using xda premium
CharliesTheMan said:
Are you running stock out of the box or rooted?
You need to run about three full cycles through it, that means connect the charger and do not disconnect it until its fully charged. I would then unplug it, play around for two minutes, then plug it in again for about 20 to 30 minutes. Only do this bump charging when you completely charge it the first time.
After that initial charge and connecting it to top it off (bump charging) just use the tablet as you normally do until it dies.
Then connect it to the charger when you can allow it to completely charge to full.
If you're stock, either before the above steps or afterwards, use wugs toolkit and reset the stock image. Connect the nexus to your computer, copy the sdcard folder to your computer so everything on the sdcard storage partition is backed up, then install the stock image again which will wipe and reset the tablet.
From the information you gave I think its real likely that's a software problem and resetting will fix it. You can even try a factory reset in settings before you reflash the software.
Let us know the outcome.
Sent from my Nexus 7 using xda premium
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I'm using stock, unrooted. I have not done anything a "normal" user wouldn't do. These first days I've been using it actively around 5 hours/day (i'm on holidays ) and I didn't turn it off until this problem appeared. I've charged it 10 times by now, and always made sure it was full before unplugging it. I have not tried the "bump charging" tho... I'll try it and report back
Thanks!
After bump charging it I allowed it to go down to 10% without problems. I hope it keeps running well now!
Hi, I bought N7 (2012) 16 GB in December 2013 and suddenly it's charging went slow. At times, it just charges 5% after plugging in for 5-6 hours. I've no idea what's happening with it. Any clue?
Same here.
E.g. last night I turned it off at appr. 30%, plugged in the charger and in den morning it was at about 50%.
I am on PACman Rom 22.1.0
there has many issues about fast battery drain after kitkat especially about N7. There is no definite fix for this but you can try not to let it decharge under %30-35 because the lower battery is the longer it charges.. good luck with pluging and unpluging the charger a few times in out in out , it helps they said.
hagizma said:
there has many issues about fast battery drain after kitkat especially about N7. There is no definite fix for this but you can try not to let it decharge under %30-35 because the lower battery is the longer it charges.. good luck with pluging and unpluging the charger a few times in out in out , it helps they said.
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No, my case is something else. Everything was working fine and this problem happened suddenly one day. At times, while charger is plugged in, if I play game, battery starts to drain even when it's charging. There has to be some problem with the battery but I ask why did this happen and that too suddenly.
Get gsam from play store and see what's eating your battery. Or post screens here.
If you're rooted, you need gsam root companion as well. Shows more details then.
Otherwise we're all just guessing.
Mine started doing that just yesterday. I updated twrp today and did a wipe of everything, went to reboot, now it will not turn on at all. Won't even charge. I got it to turn on finally but it won't go back into recovery. Just gets stuck on the part when you first turn it on.
Sent from my SM-N900P using Tapatalk
Here's something crazy! I unplugged the battery for a few hours, plugged in the power cable, tried turning it on (didn't work for obvious reasons lol), then plugged the battery pack in. Now it's charging fine and was able to boot into recovery.
Sent from my SM-N900P using Tapatalk
Hi,
I have a problem with my Find 5: I am stuck in a bootloop. The Oppo logo appears and after only a few seconds disappears, the phone vibrates and then the logo appears again. And this goes on and on.
I can get into recovery and fastboot but the real problem ist that my Find 5 will turn of again after maybe one minute into recovery. I tried it with CWM and TWRP. When I want to turn on the phone or get into recovery without being charged, nothing happens.
Before that I haven’t used the Find 5 because the USB-Port was broken and it would not charge. Even if the phone had a connection, its battery percentage would not increase at all. Then I ordered a new battery and a new USB-Port. I installed the new parts and suddenly the phone started to work again. I flashed a new nightly of CM 12 and installed some apps. The next day (it was charging over night) I unplugged the phone at 30%.
When I looked at the battery chart, I could see that the battery percentage did not decrease and also not increase while plugged into the charger. Then after some normal use, the battery percentage jumped from 14% directly to 0% and the phone turned off a few seconds later. When I charged it, it was stuck in a bootloop again. First it took about 30 seconds between the reboots and after the Oppo logo disappeared I could see that it i charging but after some minutes the reboots got faster (every 8 or 9 seconds).
So I am having the same problems with the new parts again but I don’t know why because it worked for some time…
It seems that the battery is broken again but how can it be? It was a brand new battery and it worked for one nearly full charge. Are there some common mistakes when replacing the battery that I could have made to cause my problem? I don’t know what to do and I want to try everything that is possible before getting a new phone.
Edit: Now I know where the problem is (or where it is not) but I have no idea what to do against it. The problem lies somewhere in the mainboard. Because when the charger is plugged in the phone will start to reboot again and again so the cable between USB-port and mainboard should be ok. But the battery is not charging. The phone worked with the new battery for a while because it was already charged when I built it in. And now since the battery is empty again I am experiencing the same problem as before again.
So does anyone have an idea? Where is the exact problem and can I fix it without spending much money on it?
Thanks for your help
Sam
Greetings, everyone!
I bought an N910C Note 4 back in 2015, has been working flawlessly up until the last couple months where I couldn't go more than 5 minutes off the charger without the phone dying and having to recharge it again. About a month ago, I bought a new battery and it resolved my phone's performance issues completely. At least, so I thought.
After around 2 days of having the new battery, my phone has been giving me a new issue: The phone immediately turns off(No Samsung screen or anything) when un-locking the screen or when doing just about anything(Although Chrome seems to be an exception, I haven't tested it again yet) past a certain battery percentage(Seems to be around 60% or so) and is unresponsive unless I do a battery pull or I put the charger in. Now here's the thing though, after it turns off and I put the charger back in, it still shows either the same percentage it had when it died or sometimes 2-5% less charge. After I turn it back on, the cycle continues.
I've done the following:
-Tightening the screws on the phone
-Dialing *#0228# and re-calibrating the battery
-Charging via computer with third party USB and charging via wall with original charger
-Disabled Fast Charging
-Running in safe mode
-Deleting Cache Partition
I have rooted the phone two months ago, and it is on 6.0.1. I did do a factory reset prior to getting the new battery, but I will try again if it is suggested.
Thank you for reading and I appreciate any help.
EDIT: It seems that prolonged usage of an app(As in not switching between apps or closing it out) seems to give me usage all the way to about 34-14%, where the phone then shuts off.
So. My phone has this problem, and its pretty weird (IMO). It is possible that it is a hardware problem.
I going to work and I dropped my phone. Didn't think much of it. The phone worked fine for several hours. It started around 40% and only declined somewhat, until about 2-3 hours later where it dropped rapidly to 6%. It was in my pocket when it dropped. I figured at the time that I had just forgotten to turn the screen off, so it drained much more battery. I then plugged it in, and it charged for a little while on a non-turbo charged cord, getting to 21% (which is what it said when it was off). After I turned it on however, it was only at 12%. I didn't bother with it at the moment, but after about 5 minutes it dropped to zero in about 5-10 seconds from when it started dropping. This was concerning, but I had to go back to work so I plugged it back in. When I came back and rebooted it showed 11%, and it stayed at 11% for several hours while I was using it, even though I wasn't charging it. Then randomly it dropped super quickly and died. I turbo charged it overnight. In the morning I booted it up and it immediately shut down claiming there was 0% battery life. It will not boot up without being plugged in. This goes on.
Usually, I charge it for a while and it will give a higher number than it will say when it boots up. It sticks at that boot up number for longer than it should, then dies rapidly. Occasionally it will boot up to be 0% and immediately die. I have tried turning in on and off again (without it dying) and it wont turn back on claiming too low of power regardless of how charged it said it was before. I have tried various charging cables and wall outlets. I have tried several battery repair apps, which did nothing. I was going to try and do a root version, since I figured that would be better but cannot root it. (Using adb to sideload comes up with an error (signature verification failed), trying to flash twrp fails (pre-flash validation failed) and normal root methods fail.) Oh yeah, and I've also factory reset it a few times.
So it seems to me that it's a software problem, namely the battery driver, since it appears to be charging and holding a charge for the most part, but then shutting down randomly due to the driver saying it is at 0% battery life. Alternatively, it could be a problem with the battery or charging port, although nothing seems to be wrong with the charging port visually.
Also potentially of note is that my normal turbo charger, when plugged in, puts a lightning bolt icon in the battery symbol, but on battery usage it says not charging. This could also be the chargers fault, since it had begun to fail previously (only working at certain angles) but it worked earlier the same day and now doesn't.
I didn't install any new updates to the OS or installed any new apps before this occurred either.
Any idea whats going on and how to fix it?
EDIT: I've been trying to look up and see if there was a driver or something for the battery that I could reinstall but I couldn't find anything. So, I ordered a replacement battery of Amazon. Now the question becomes will that fix my problem if I replace the battery?
Think so this might solve your issue ,but getting it checked before ordering would be wise.
Going through your rooting steps , i didnt see that you unlocked your device thats why you are getting errors of signature verification failed.
There is no separate battrey driver for Android its the part of OS itself so you dont need to mess up with that area
Uh... yeah well, Droid Turbo 2's can't root. It wont work. The bootloader is locked up tight, even if you select it in developer options it does nothing.
JWeller said:
Uh... yeah well, Droid Turbo 2's can't root. It wont work. The bootloader is locked up tight, even if you select it in developer options it does nothing.
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HI,
has your problem resolved after replaced the battery?