Wouldn't charge - Nexus 7 Q&A, Help & Troubleshooting

So I ran into a problem with this today, battery had run out on it last night so I set it on the OEM charger with a generic microUSB cable I had laying around that does work on other devices. Wake up today, and it wouldn't turn on. However, the charging animation would occasionally pop up, and at one point I got it to boot up, where it stayed at 0% battery the entire time.
Switched it out to the 1A charger that came with my Kodak camera, using the same USB cable, same deal.
Switched it to a USB port on a powered hub, different cable that again does work on other devices, still the same deal.
Switched it back to the OEM charger with the OEM cable, still wouldn't charge, but would turn on. Twenty minutes of it being on (screen off) and no charge, checked back and maybe another ten minutes later it was up to ten percent.
Any idea what happened?
Also, is there any word with what's going on with the dead spots on the screens on these yet? Mine recently started doing it.

This thread may help to answer some of your questions.
http://forum.xda-developers.com/showthread.php?t=1823377

Related

Wizard won´t recharge!

Hi,
My wizard run out of battery completly yesterday, I brought it home and try to recharge it, but no recharging light will appear.
I left it overnight connected to the mains but to no appeal,
I also removed the battery for a few minutes and then plug again but no luck.
I´m not using the mains provided adaptor but my travelling kit, a proporta mains/usb adaptor and a retractable sync/charge cable with a mini-usb pin cos I´m back home for Xmas and I don´t travel with the mains.
I have read about problems with some chargers from Boxwave, but I have consistently using this charging conbination since October.
Any ideas, should I send it back to expansys to repair, or is there anything else I can try?
Thanks
Elsral
same thing happened to me.. Supposely the phone will not charge from being completely dead without a charger that puts out 1amp. There is another method if you are a little brave... cut up an old car charger and hook it directly to the battery (red cord to + on battery and black to -) Read about it on howardforums and it worked like a champ. I only needed to jump the battery for about 30 seconds before I put it back in the phone and the amber light kicked on.. I was very relieved!!
Same happend to me yesterday. Simply plug the carger in and wait 1 or 2 seconds then switch the power button. After some seconds the carging light should switch on.
The wizard won't charge if it's switched off.
Export800,
you are a megastar,
I put apart a usb adaptor that I had built to charge my gps and I connected cables directly to battery for a minute and Voile,
tnx a million,
elsral
Xunil99 said:
Same happend to me yesterday. Simply plug the carger in and wait 1 or 2 seconds then switch the power button. After some seconds the carging light should switch on.
The wizard won't charge if it's switched off.
Click to expand...
Click to collapse
But if the battery is totally dead surely the unit wont switch on ? Thus its a catch 22 ??? There is no power to switch on and the battery wont charge totally dead.
Ridiculous if you were caught out away from a charger and ended up having to pull apart a usb lead to get things back to life.
If the battery is so low, that the wizard switches off itself, and you connect the charger, it won't charge, because it's switched off.
Use the power of the charger to turn it on, then charging will beginn (and also the device will boot).
Xunil99 said:
If the battery is so low, that the wizard switches off itself, and you connect the charger, it won't charge, because it's switched off.
Use the power of the charger to turn it on, then charging will beginn (and also the device will boot).
Click to expand...
Click to collapse
Can anyone else confirm this works as there have been many people having this problem. Simple solution if it works.
Switch off your device completely (hold the Power Button) and try to charge: Nothing happens. Now switch it on - charging begins.
I have noticed that last week, when battery was very low and i know that i would need my wizard in about half an hour. So i switched it off completely, so that it would charge faster and noticed that.
Yesterday when battery was totally dead i remembered that and i switched it on.
Btw, doesn't it damage the battery, if you connect it to 12 V (!!)??
Xunil99 said:
Switch off your device completely (hold the Power Button) and try to charge: Nothing happens. Now switch it on - charging begins.
I have noticed that last week, when battery was very low and i know that i would need my wizard in about half an hour. So i switched it off completely, so that it would charge faster and noticed that.
Yesterday when battery was totally dead i remembered that and i switched it on.
Btw, doesn't it damage the battery, if you connect it to 12 V (!!)??
Click to expand...
Click to collapse
If I come across the problem will certainly be trying your method before I will be ripping into any usb leads
The same thing happened to me this past weekend. We were out camping and my MDA's (wizard) battery went completely dead. I had a USB sync cable for my laptop, but that would not revive the unit. I'm afraid the only way to bring it back to life is with the original OEM charger which has an output of 1 amp. Thanks for the post!
I had the same issue a while back. At first I thought the moto charger I had was dead but then I plugged in a old SMT5600 and it worked fine.
I left it plugged into my computer for a hour or so and finally I heard the "new usb device blip" from the other room and it started to charge. Guess I was lucky.
Same thing happened with my wifes SMT5600. The battery died and she couldn't get it to charge with her moto mini usb charger. I plugged it into my machine and a hour later the charging light came on.
I have heard that the Wizard will not charge from my laptop using a usb cable if it is completely drain. I find this to be NOT TRUE.
I ran out of juice twice last weekend. The thing about the Wizard is that, if it's completely drained, it will get stuck at the boot screen, and go no further.
Take out the battery to turn it off again. Put the battery back in, and then plug in your charger. DO NOT TURN IT BACK ON. It needs all the power it can get. Give it a minute, and you will see your orange charge light come on. Just leave it alone for several hours, and it will charge. This is my experience.
I got it! But, first the story.
None of the above methods helped me. I tried plugging it in to a big truck lighter, a pickup truck, even an ac adapter for my coleman cooler. Nothing!
However, I had a powered Pro-Clip mount that I had as a backup for the one I use. Guess what? THAT worked!
I think the cable makes the difference. Need to find the specs on those puppies. LOL
Thanks for the help.

Transformer Wont charge!!

ive had it for a month and a half and now its doing this, plug in the charger to the tablet and nothing. ive tried with different outlets aswell ive checked my power adapter to see if its one of the effected ones but mine was a pre assembled one. ive also restarted the tablet with no luck. time to call asus?
Do you have another device that charges by usb, that you could plug in to see if it sees anything for power? Not sure on the usb pinout for our chargers, but if someone knows, you could use a voltmeter to probe it and see if it has any output.
k got it charging now, hooked it up to my pc with the usb cord to see if the cord or the socket is shot, still connected to my pc....but it reinstalled device drivers as if i never used it on my pc. i turned usb debugging on then off, then i unplugged it and put the cable back into the power adapter and its charging
this is concerning, seems like a usb driver issue that effects the port not sure if i should call asus and do something about it
Sorry to bring this up but I started noticing this today too. I've had mine for about a month and everything's been fine. I noticed that the battery was in the 30s so I plugged it in via the a/c adapter and neither my battery widget nor the system battery icon change to the "charging state". I shut the device off to see if it would charge quicker and left it off for what must have been an hour and the battery has only increased by about 7%. I'm timing it now to see how long it takes.
This happened to me this morning. I couldn't get the tablet or the dock to charge. The dock was at 3% and the tablet at around 75%. Neither would charge either singly or together. I tried using a normal 5v USB charger for a few minutes, but without success. Then I fiddled with the charger and uncoupled the 3 pin UK adaptor. It then started charging. I'm not sure if it was coincidence or not, but at the moment it's working.
B50K tablet and B50K dock.
I have a B50 also running the newest firmware via Revolver 1.1.1, I just booted up my TF after an hour of it being off and connected to the A/C outlet to see how much it had charged. It increased 2% in the past 70 minutes. Something's Fishy here.
did u guys try method of hookin to your pc, then turn on usb debugging.
i havnt had any issues recharging since this thread was made
I connected it to the computer a few times and USB Debugging was already on, I just turned it off and I'll try and connect it again but I'm currently backing up stuff with CWM.
Edit: I just cycled USB Debugging a few times while it was connected to my PC. XP (virtualized through Arch Linux) recognized it each time, but still no change in the charging status. I'm going to unroot and go back to the stock 3.1 to see if it's a software or hardware problem.
Edit: seems to be a hardware problem considering I reflashed it back to stock (unrooted) and it's still doing it. Awesome.
Same problem here. All of a sudden I didn't see any status from the dock battery (dual battery widget). Tablet charges just fine, but the dock won't charge. even left it connected to charger overnight but the dock led just keeps blinking orange (/red). I'm afraid the dock will have to go RMA.
Just got an email back from Asus and they told me to fill out an RMA. It'd be nice if I got one out of the B70 batch as a return
edit: sadly, that didn't fix it. I re-rooted, let the battery drain down until it turned off and wouldn't turn back on, then let it charge for 2 hours. I turned it back on and the battery was at 5%

[Q] Battery not charging?

I got my Nexus 7 yesterday (bought from Google Play), I played with it, installed apps, etc.... at about 11pm I plug it in to my factory charger which is on a surge protector, it proceeds to charge while I continue using it for 2 hour or so. When I went to bed I turned it off. I noticed the charging indicator (battery filling up). When I got home today I unlugged it and tried to turn it on...Nothing, so I plugged it into my computer, the charging indicator came up, I waited 5 minutes and turned it on, I then went to the store and when I got back I went to plug it straight to the wall for a faster charge, when I moved it it immediately powered off. After 5 min of "charging" I powered on and went to the battery summary page, it says 0% charging (AC). Its been here for about 30 min now, the usage graph shows a flat red line. Is my battery defective?
Nevermind. False alarm, thank God.:victory: My usb extension cable seems to be the problem. Also if anyone is curious, the htc usb cable works fine and is longer.
My Nexus 7 won't charge. I've tried 3 chargers, including the provided one, all of which work on several phones, but none work on the Nexus 7. And it's been a tedious few hours in a queue on the phone trying to get hold of anything to even start the returns process. I can only assume the stories you see when you google 'nexus 7 fault' are true and that many, many people are queueing up to get their faulty unit refunded or replaced. It's a shame - I've played with a working one and it's very nice.
I've had a similar problem for a few days now. When its plugged in, on or off, it will only gain afew percent battery even over a full24 hours. I broke the tip of my stock cable, so thats not an option but ive tried with several other cables with the same results. I'm afraid to use this thing any more unless its plugged in so since it may not charge once it dies. Did you ever solve your problem?

No charging at all when screen is off.

Ok i turned on the dev option by clicking the build number several times.
Then i checked the "don't turn off screen while charging"
So if i plug in a normal usb (haven't tested the new cable for this one yet) the screen comes on and it charges as it should.
But if i close the screen (clicking on the power button once) and leave the phone, then the phone dosen't take any charge at all.
I just woke up this morning with same % on the phone as when i got to bed, the only thing i did was to close the screen so it wouldn't light up my bedroom.
Ok, this night i had disabled in the dev option to have the screen on.
So this night i had 55% battery. plugged in the charger and the screen auto dimmed and 5 sec later closed as normal.
This morning when i woke up 9Hr later i have 44% battery left..
So somehow it dosen't charge my phone over night when the screen is off, or could it be something else?
Factory reset
I'm having a charging issue to, but mine won't charge unless the device is completely turned off.
Ok i have made a strange discovery here.
I have 2 USB Chargers, my old "HTC Incredible S" usb charger is in my bedroom, so i used that while i sleep.
And my new original charger Note 3 (that is also a usb charger) at the computer (That i use on the day).
But when using the HTC usb charger i get no more then 64% battery as maximum on my Note 3.
Why is this, isen't usb a worldwide standard? (Whats so special with the Note 3 usb charger?)
If i use a usb 2 cable (with an extra long 250cm cable) with my Note 3 charger i get full battery also.
And to take this question to the next step, will something like this even work then:
http://www.ebay.com/itm/QI-Wireless...Chargers&var=430207964801&hash=item1e8125e2fa
Is so, will it only work with the original Note 3 usb charger to get full battery?

Strange Problem with Charging my S8

Yesterday, my S8 said that there was moisture in the charge port. I look in there and saw that there was something in there, I tried to blow it out several times but managed wipe it out with a handkercheif. After that I swiped the notification and it didn't come back again.
At night time, I plugged my phone to the charger to see that after the phone's screen went off, it stopped charging to come back again when the phone screen turned on. It kept repeating this cycle. But when I unlocked the phone it continued to charge until the phone's screen turned off.
I changed the charger, it charged even when the screen was off. Also, it worked when I tried to use a powerbank. But when I used the packed in charger, it kept repeating the cycle.
Thinking that it might be a bug, I restarted the phone to see it's fixed.
I closed the phone to switch it on this morning. But before I switched it on I plugged the charger to see that it gave the "Drop" icon meaning that there is moisture in the port. Then I switched the phone on. The problem came back! It didn't charge when the phone's screen was off. After I tried to charge it with another charger, I plugged the original charger back. It worked even when the screen was off.
To be sure there wasn't anything stuck in the portI closed the phone, filled the port with water, waited untill its dry and plugged the charger. I stopped giving me the "Drop" icon and started charging the phone.
After that, I turned on the phone and plugged the charger. The problem was fixed!
But "was" fixed... After a while, the problem still persists.
If you can say what might be causing this, thank you!
I think, the problem cause is Fast Charge 2.0
Now I opened the Advanced Battery Options to disable the fast charging, but it turns out that is was already disabled! But wait, it says that its "Fast Charging". To enable it, I unpluged the USB-C. It enabled itself! After plugging the cable back, the problem is solved. At least for the time being.
Some interesting stuff is going on with this phone XD
I got similar problem. After connecting charger phone says fast charging blablabla and after 5 seconds charging is stopped and then after 1 second it charging again but with no fast charging. I've tyied few diferent chargers and cables also i've cleaned usb c port wiith isopropyl alcohole with no luck. Fast charging missing. Restart and switching on/off fast charging performed few times - no luck. Must be a bug in system... any ideas folks??
well i dont have does issues with my s8... but it did once happen that phone didnt want to fast charge but after repluging the cable issue was solved...i would advice u to take ur device to waranty service cuz solving problems on ur own is not acceptable and ur device shouldnt have those issues.

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