Tablet is always "charging" even when unplugged - Nexus 7 (2013) Q&A

Hello, all.
I have a friend with a Nexus 7 2013 (WiFi) that she recently purchased refurbished. After some issues with the charger that they originally sent with the device, she finally got it charged and now it always says that it's "charging" even when it's unplugged. She tried doing a factory reset, but even after going through all that, it still says that it's charging regardless of whether it's plugged in or not. I also recommended she try letting it drain totally to zero and then charge it again to see if it was something it could be tricked into forgetting. I also went into the stock recovery and cleared the cache, to no avail. It is fully updated to Lollipop 5.0.2 with a locked bootloader and stock recovery and seems to be in good physical condition. If anyone has any suggestions I would really appreciate it.

Curious if something could be goofed up with the wireless charging coil.
When you go into the Battery screen (two finger swipe down from the notification shade, tap the battery icon) what does it say at the top? If the battery icon shows charging, it should list how it is charging in the battery screen, AC, USB (I think) or wireless.
Another suggestion might be to unlock the bootloader and flash the factory images direct from Google. I know you said that a factory reset was done, but I'm guessing it was done "onboard" without a PC. Reflashing the entire image could help clear up any cobwebs.
Unlocking the bootloader will induce a factory reset, but if one was already done, it seems like your friend would be OK with trying it again.

@fury683 I tried checking the battery stats for which charging type it believed it had and it says "over USB" so I guess it thinks it's plugged into a computer (probably due to the low (lol) amperage). I'll talk to her and see what she thinks about unlocking the bootloader and flashing the factory image, but she bought it from Amazon so I think, unless someone else can think of anything to try, I'm going to recommend she tries to get it replaced because Amazon's CS is awesome. Thanks for the pointers. If she doesn't have any luck with Amazon, I'll proceed from there.

If a return/exchange is possible, I'd go that route. As for unlocking the bootloader, it can be relocked when you're done flashing the factory image. However once it is locked, unlocking it again will require another factory reset.
Having it unlocked allows for flashing of other ROMs and recovery, as well as easy rooting. If that isn't needed and the user is OK with waiting for OTAs (the 5.0.2 one seems to be taking quite a while for some users), relocking it would be fine.

Did anyone figure out this issue? My nexus 7 started with this exact problem this week. Always shows charging (usb). It will never fully charge, via wall charger or wireless.
Sent from my HTC One M9 using Tapatalk

jsnow222 said:
Did anyone figure out this issue? My nexus 7 started with this exact problem this week. Always shows charging (usb). It will never fully charge, via wall charger or wireless.
Sent from my HTC One M9 using Tapatalk
Click to expand...
Click to collapse
I had a 2013 Nexus 7 and it did this when I took it out of the box. It seemed to be a hardware issue. I was able to warranty it with Google. Sorry this is probably not helpful to you since the warranty period is probably over, but at least it probably brings conclusion to your issue.
fosser2

I was luckily still under warranty, hopefully the issue will be resolved.
Sent from my HTC One M9 using Tapatalk

My Nexus 7 2012 has the same thing. I tried to replace the USB port, but got no luck. I tried to remove the battery wires too. I think this might be a issue with bootloader. When I plug it on my PC, nothing happens.

Related

[Q] Hardware Fault Test Kit

Hello.
I realize that this is probably not the place to ask this question, but I am in need of serious help.
Is there any software kit which would let you test your HTC Desire hardware for hardware faults?
The reason for this is that my Desire is not charging neither through the AC charger nor the USB charger, and I need my phone BADLY.
I have tried a hard reboot, battery stat erase (through recovery, thus I have rooted my phone and voided the warranty), factory erase, and 'charging' the phone whilst the phone is turned off.
I have to say that when the phone is in charge, the battery doesn't go up, no goes down, and it stays on the same level (for now its on 27%).
I am quite scared to run it to 0% and not being able to boot the phone up at all.
Anyone can help/ideas?
Much appreciated.
Mo
Have you tried a different usb cable? It's possible yours is broken
Sent from my HTC Desire using XDA App
Check Z-Device Test in market. It tells what component is working and what is not
I had a similar problem the other day when I flashed one of them new fangled kernels, it was stuck on 62% after 8 hours of charging, re-flashed the standard kernel and thankfully things went back to normal..
so I was just wondering if you had flashed a new kernel recently?
Are you using the original charger? Maybe its slow charging (USB).
maybe your battery is faulty. Try a new battery.
Hey all.
Thanks for the replies.
@beanbean50 no, I am using LeeDroid's 2.2a kernel with UC-OC, and it was fine for a few days.
@venkig I just tried Z-Device, and it reports that everything is healthy!
I am using one replacement cable. After trying the same cable on my mates phone, it seems that the resistance of the new cable is much higher, thus less current can go through. So for me to charge the phone to 100% -whilst the phone was off- took around 15hrs!
I've ordered a new cable from hTC, and waiting to see if that fixes the problem.
Thank you all for the replies and help.
Mo
Moved to Q&A as not development.

[Q] GNex will not charge / USB Host not recognised

Hey all
Wonder if anyone can shed any light on what I think is a unique problem - in that I can't find anyone with the exact same issue.
Last weekend I took the SIM card from my GN to place in another phone I was trying out. The GN was powered back on and being used on WIFI as I was doing comparisons, shooting some video of the new phone with it etc.
Popped the GN in a drawer without thinking and left if powered on
(see if you can guess where this is going)
Messed around with the other phone for about 4 days, got my GN out of the drawer and went to put the SIM back in my GN.
1. GN would not turn on initially at all. No recovery, nothing. (solved)
Read some posts on XDA and elsewhere, people with similar issues mentioning a long (5min+) battery pull would wake her up. Dutifully I obliged and the phone did indeed wake up. However, battery was totally dead and phone shut back down.
2. GN will not accept charge from a wall charger when phone is on.
Whilst the phone seems to take a 'trickle' charge whilst powered off (battery charge animation is on), this is exceptionally slow. Took all night to get to about 50% charged to allow me to boot up and have a look around. Whilst the phone is powered on, it will not recharge. tried all sorts of official and other USB and mains cables.
3. When connected to a PC via USB, will accept charge, but error message notes that USB Device not reconised, troubleshoot? etc...
Phone won't mount. Status says it is charging over AC.
So what's up? I assume the battery died big time over the 4 days i left it. A have a new official battery in the post to resolve but... didn't anticipate the issues with USB connection etc. Worried the phone might be partially bricked/borked/knackered.
Phone is GSM 16Gb currently on 4.0.2 and totally stock. So no tinkering to date has caused this. Only event that proceeded the issue was the full battery drain.
Any hints / tips / info / moral support gladly accepted.
Really sounds like you're phone was already borked, just waiting for the right time to tell you. You might've hurt it's feelings.
Sent from my Galaxy Nexus using XDA App
Sounds like it's emotionally scarred from being abandoned for another phone and left in a cold dark danky drawer for half a week.
Have you tried reinstalling the USB drivers?
Also could try factory reset as well as try unlocking it and relocking. Worst case, send it in repair, just tell them it's heartbroken.
Heartbroken, I like it... Worse still I was testing out a Windows Phone. What a phone philanderer I am.
The drawer was nice and dry though I assure you.
How would I install USB drivers?
Sent from my Galaxy Nexus using XDA App
GringoMonkee said:
Heartbroken, I like it... Worse still I was testing out a Windows Phone. What a phone philanderer I am.
The drawer was nice and dry though I assure you.
How would I install USB drivers?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Assuming you're on a windows since you called it a PC..
Try and see if windows can install it for you.
Go to Start > Run > Enter "device installation" in the search > select "Change device installation settings" > Select "Install driver software from windows update if it's not found on my device"
Many have seen this type of problems, see http://forum.xda-developers.com/showthread.php?t=1427539
It's a hardware issue, but is fixable if you want to change the USB port yourself
Thanks.
Then post you link to seems to be about 'phantom' charging when no cable is connected. This is the opposite in a way - it won't charge when turned on at all.
New battery arrived today. No change. Device still trickle charges when powered off, but doesn't charge on mains power, and still will not recognise when plugged into an XP or Linux machine.
Gonna try a factory reset and will update.
Let me know of any ideas and or people with the same issue. I'm still of the opinion I haven't seen a thread with this same issue. Would be happy to be corrected.
Cheers
Well, a factory reset did nothing...
Stuck...
If you read the thread, many have had this exact problem, including myself. For me the phantom charging happened a while after it refused to charge.
What the actual ****...
I just tried what can only be described as the 'toothpick trick' : pushing down the connector nub inside the USB port on the phone et voila, now acting as normal.
I can only describe that as a really ****ty example of workmanship from Samsung.
And it would be after I reset the device as well.
Do you think this one's a definite hardware issue / defect? Seems a crazy thing to happen.
I had the same problem and search as I might, I could find no solution and had to send it in for repairs. The good news is, if you send it directly to Samsung (and dont go through your carrier), they were really fast about it and I had my phone back within a week
Lol, I was the one figuring out the toothpick trick I ordered the phone from clove.co.uk the first week it was released, and had this issue haunt me after a few weeks. As I'm in norway, I was not looking forward to sending it in, so tried to fix it myself. I tried "everything", including short circiut some pins in the plug on purpose, but what finally fixed it for me was to buy a OEM USB Charging board on ebay and replace it myself.
I know, really ****ty QA at Samsung.
Not looking forward to sitting and waiting to see if this is a recurring issue.
How much of a job is replacing the board on the phone?
Sent from my Galaxy Nexus using XDA App
Not that hard. The phone is easy to pick apart, and you can just "plug" in the new card with two simple connectors.
Turns out it is a recurring issue.
Is this the sort of thing that would be classed as due a replacement phone?
Sent from my Galaxy Nexus using XDA App
zoolake said:
I had the same problem and search as I might, I could find no solution and had to send it in for repairs. The good news is, if you send it directly to Samsung (and dont go through your carrier), they were really fast about it and I had my phone back within a week
Click to expand...
Click to collapse
I am having a very similar issue that I believe is hardware. Sometimes charges, sometimes won't. BUT it will not be recognized through USB on my PC so I can not flash stock images unroot and lock the bootloader back up. Where you completely stock and unrooted before you sent it in to samsung? I have to find some way to get it back to stock so I can get get this fixed...
chuckdz3 said:
I am having a very similar issue that I believe is hardware. Sometimes charges, sometimes won't. BUT it will not be recognized through USB on my PC so I can not flash stock images unroot and lock the bootloader back up. Where you completely stock and unrooted before you sent it in to samsung? I have to find some way to get it back to stock so I can get get this fixed...
Click to expand...
Click to collapse
Yes, I know there are many topics on this, but mine is a little different, and this appears to be the most current thread.
I have a galaxy nexus that I got from Google IO last summer. It has worked great until last week. It stopped taking a charge. When I would plug it in with the same plug I have used for months, it would show the lightning bolt, but not charge. I tried the toothpick thing but no luck and ended up breaking the usb port. So, I bought a replacment usb board off ebay and installed that. Now, when I plug the phone in, still no charge, but my computer does recognize the phone.
Then after the 4.2.2 update, I no longer see the lighting bolt, but it still does not charge. I have been charging the battery at night. I cut off the end of a usb cable and use electrical tape to tape the two stripped wires to the battery. But that only provides an 80% charge and doesnt last the whole day.
1) Not a usb port issue, but might be a motherboard issue?
2) Not a toothpick fix
3) Maybe a software issue?
4) Maybe time to buy the Nexus 4?

[Q] usb\unknown, not recognized & not charging

So I have done some searching and I know I am not alone with experiencing this.
Basically my phone doesn't really want to charge (last night off and plugged in it did charge but did not look like it was charging) and I have seen usb\unknown in device manager but more recently it doesn't show up at all.
My boot loader is unlocked but I am running 4.1.1 Yakju stock and I am on the stock boot loader. I have seem some suggestions of resetting battery statistics but I do not have CWM on this phone, is there any other way to do this or does anyone have any other suggestions besides sending the phone for repair? I don't really want to go without a phone.
Shieze said:
So I have done some searching and I know I am not alone with experiencing this.
Basically my phone doesn't really want to charge (last night off and plugged in it did charge but did not look like it was charging) and I have seen usb\unknown in device manager but more recently it doesn't show up at all.
My boot loader is unlocked but I am running 4.1.1 Yakju stock and I am on the stock boot loader. I have seem some suggestions of resetting battery statistics but I do not have CWM on this phone, is there any other way to do this or does anyone have any other suggestions besides sending the phone for repair? I don't really want to go without a phone.
Click to expand...
Click to collapse
Wiping battery stats does absolutely nothing at all related to your problem. If you already tried cleaning the USB port, I'd say you definitely have a hardware issue there. Like I just said in another thread similar to this one: you can try to tweak the connector pins yourself, or claim warranty.
Petrovski80 said:
Wiping battery stats does absolutely nothing at all related to your problem. If you already tried cleaning the USB port, I'd say you definitely have a hardware issue there. Like I just said in another thread similar to this one: you can try to tweak the connector pins yourself, or claim warranty.
Click to expand...
Click to collapse
I did try cleaning the port but did not see any improvement. I also don't see any issue with the pins but maybe I am wrong.

Nexus 5X won't turn on, bootloop when charging

So yesterday I was trying to make a phone call and the phone went dead. I tried turning it back on but to no avail. When connected to a charger, it just shows the battery for a while and then it disappears and reboots to showing it again only to reboot itself again. Needless to say, I am stuck with a bricked phone. I managed to get it up and running by flashing the stock rom but after update to Android 7.0 the problem came back after like 10 hours. Now I can't even get into bootloader without the phone being connected to a charger, which is a problem because I can't flash anything through charger obviously. Connecting the phone through USB does not work, the phone stays dead like it is out of juice. With that being said I think it might be a faulty bootloader. The power button is fine, so I think we can count this option out. Any other ideas? I am considering taking the phone to the shop where I bought it as it is still under warranty but because it is not Google they might refuse to replace it with a new one or repair it. Is there anything I can do?
EDIT: I sent it to LG.
kubatbg said:
So yesterday I was trying to make a phone call and the phone went dead. I tried turning it back on but to no avail. When connected to a charger, it just shows the battery for a while and then it disappears and reboots to showing it again only to reboot itself again. Needless to say, I am stuck with a bricked phone. I managed to get it up and running by flashing the stock rom but after update to Android 7.0 the problem came back after like 10 hours. Now I can't even get into bootloader without the phone being connected to a charger, which is a problem because I can't flash anything through charger obviously. Connecting the phone through USB does not work, the phone stays dead like it is out of juice. With that being said I think it might be a faulty bootloader. The power button is fine, so I think we can count this option out. Any other ideas? I am considering taking the phone to the shop where I bought it as it is still under warranty but because it is not Google they might refuse to replace it with a new one or repair it. Is there anything I can do?
EDIT: I sent it to LG.
Click to expand...
Click to collapse
I had the same issue just a few weeks ago, did you ever get it back? How long did it take? Was covered under warranty?
Thanks - Ed

Pixel XL3 wont charge at all. Turns on/shuts off

Hello im new to the forum, a friend of mine suggested this is the best place to post this so here it goes:
I bought a used Pixel XL3 from ebay, it arrived today and i immediately turned the phone on, it had about 25% battery in it, i used it for most of the day, when i got home i tried charging it with the original charger and when i connected the phone it didnt show it was charging at all. I tried 2 other charges/cables and the same result. I know the phone did detect the cable was being connected because every time i connected the usb cable the phone kind of blinked, but it didnt charge.
I researched on Reddit and someone witha similar problem suggested i completely drain the battery and then try and charge it again. I drained the battery and now when i connect the phone it shows a gray battery icon with a lightning bolt in it for a few seconds, then it boots to the google logo and then it shuts down again. It does this over and over again.
Im at a complete loss of what to try or do next. The phone did work when i took it out of the box! I cannot RMA it to Google since im not the original buyer of the phone and im also out of the US.
Any assistance would be really appreciated!
Try a wireless charger?
If you plug it in when off does it charge? Leave it charging for as long as you can then boot up.
I've had this problem and although it seems like a software issue there's no solution in sight and many people experiencing it.
Once you have the phone on check for a notification that says "Charging connected device via USB" - choose that - select "This device" (instead of "Connected device") Not a fix, but I"ve been getting by doing this and it allows me to charge. I am close to getting a replacement.
Fashiontek said:
...Any assistance would be really appreciated!
Click to expand...
Click to collapse
Welcome. Both ideas of turning the phone off and charging from there, and wireless charging are good ones. Once you get a decent charge on the battery, go into Recovery and do a factory reset. If the problem presents itself after a reset you may have a hardware issue like the USB port itself or the battery. If the phone is bootloader unlocked (or unlockable) you may have a few more options. What are the first 2 digits of your IMEI?
I'm having the exact same problem with my Google pixel 3 XL. I don't know if it's the charging port or it's because I'm running Android Q beta 4 and it's been happening for 2 days now. I'm going to try a factory reset tomorrow night if nothing else works then I'll update it here.
Cantholdthis17 said:
I'm having the exact same problem with my Google pixel 3 XL. I don't know if it's the charging port or it's because I'm running Android Q beta 4 and it's been happening for 2 days now. I'm going to try a factory reset tomorrow night if nothing else works then I'll update it here.
Click to expand...
Click to collapse
Ok, so have you tried wireless charging to rule out the USB interface? Hopefully a fresh install with latest P will get you back up and running.

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