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my nexus 7 tablet just wont charge, im using the stock plug and usb cable provided with the nexus 7. It it on and says charging but battery percentage doesnt increase. As of now, it is on 0% and has been for the past 5 hours. I've also tried other usb cables and a motorola milestone charger/cable and still no luck, please help me.
thanks
I had the same problem. Check the charging unit and make sure the two sections have clicked together.
BPSomerset said:
I had the same problem. Check the charging unit and make sure the two sections have clicked together.
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Click to collapse
thanks for the info, yep its in there and clicked together, still not charging properly, i think its a dead battery issue
Have you tried using a different charger or tried charging through your PC to eliminate potential problems with the plug and cable? Just a thought.
Sent from my GT-I9300 using Tapatalk 2
Try to jiggle the cable in certain directions such as up down left right and see if it starts to charge. If it doesn't, return the sucker.
Sent from my Nexus 7 using xda premium
I have found the N7 is picky with cables' the default one that comes with it works fine but doesn't seem to want to charge through my car charger.
My epic4g cable doesn't work and neither do any of my other USB cables.
Same with the charger, it has to have a dedicated live connection and no USB splitters with multiple ports.
I need like a good 4-5' USB cable to use tablet comfortably while charging.
Sent from my Nexus 7 using xda premium
I'm using a white 5ft cable I bought f/Amazon for my kindle fire.
ASIN: B006BGZJJ4. Item model # 53-000156
Works great on the Nexus 7 as well.
Sent from my Nexus 7 using xda app-developers app
I got a six foot mediabridge cable from Amazon, very sturdy and works fine.
Sent from my LG-P999 using xda app-developers app
I am now having similar problem on 16gig. It will not charge from the power adapter at all, but will charge from a PC using same cable.
Same behavior on my alternate cable that I use for phone.
spongaweb said:
I have found the N7 is picky with cables' the default one that comes with it works fine but doesn't seem to want to charge through my car charger.
My epic4g cable doesn't work and neither do any of my other USB cables.
Same with the charger, it has to have a dedicated live connection and no USB splitters with multiple ports.
I need like a good 4-5' USB cable to use tablet comfortably while charging.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
My car charger doesn't work either but my computer/tv/printer/tivo/wall/everything else works just fine... it must be a voltage issue with the car charger.
I remember reading that the charging issue some of you guys r having is a confirmed hardware problem, due to poor quality control. Asus was in such a rush to get the first few batches out that certain faults made it into a select number of batches. Other people who have had this hardware problem either could only use the Asus adapter, or that might not even work. You should try to get it replaced by your seller. I'll post the source in the morning if everyone's too lazy to Google.
Cheers
possible fix
I've read on other forums that it is the usb port. I my experience it is a intermittent connectivity or the wall wort isn't putting out enough amps. I bought an iGo Green for the iPad, put the tablet in Airplane mode and it will work fine while using it. Last night I shut it all the way down, let it charge overnight and woke up with a full battery.
Seems like only high output chargers work. All my 2.1A chargers work with Nexus 7, but lower output ones do not charge even when Nexus 7 says it's charging.
Sent from my Nexus 7 using xda premium
None of my 2.1a chargers work.
Sent from my Nexus 7
Just for the hell of it...... pry the back cover off and make sure the battery is firmly plugged in. This happened to mine and now all is good
Sent from my Galaxy Nexus using Tapatalk 2
My 8GB arrived Monday , 1/2 charged pluged in to the 2A charger it says its charging but the battery just drops. Turned off and left overnight and its still no more than 20% charged.
I need to find an app that shows charging
check output of charger, check cables, check charge on phone vs tab then send back to Google for a replacement grrrr
I have the same problem, how do I fix? I have the 16 gb version.
The N7 seems to be having a lot of problems with charging. A couple times when my battery has been completely dead, I have had a tough time getting it to begin the charging process. One time I watched it begin to charge, then boot up, stay on for about 20 seconds, turn off, and then not charge. I have no idea what's going on. I always eventually get it to work, but something doesn't seem right.
Remedy
Google Play telephone support had be factory reset my Nexus 7 8GB. After the reset, the battery began charging. A major nuisance having to redownload everything, but it does work. Good luck
spongaweb said:
I have found the N7 is picky with cables' the default one that comes with it works fine but doesn't seem to want to charge through my car charger.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1823377
Is it normal to hear loud static noise while my tab is plugged in, battery full with my headphones? And while plugged in charging, quieter noise, but still there?
Stock rooted Rom, latest 4.2.1 build, cwm recovery.
I hope it's not a hardware thing, but if it is I hope I can get it rma'd (how does it work? Thru Samsung? Bought originally on Google play, I bought from craigslist, have owners packing receipt). I also have a little light bleed..
Thanks
Sent from my Nexus 10 using xda app-developers app
This thread may be related to the issue you described.
http://forum.xda-developers.com/showthread.php?t=2001668
"If you plug in the headphones while charging is indicated, there is noise. Unplug the charger, the headphones or get to fully charged, the noise goes away."
It's similar except it gets worse or the same when it's fully charged.
And I found out if I turn up the brightness all the way up it goes away.
Sent from my Nexus 10 using xda app-developers app
Hi I recently bought a Nexus 4 16GB from Google Play in the UK. It's been working fine but in the last few days when I connect my phone with the official charger (the one that came in the box) the touchscreen begins to act weird and buggy. More specifically it becomes less sensitive and doesn't function properly. I can scroll down on the app drawer with no problem but scrolling up is extremely slow- its like its scrolling through syrup, same on homescreen. Thinking this was an app or kernel problem I removed an app I thought was causing the issue and reverted kernel back to normal but the problem persists. I now think it may have something to do with the charger being faulty as I am now charging my Nexus 4 with the charger that came with my Nexus 7 and no problems with touchscreen responsiveness or interaction.
Has anyone else had issues with this? as I've seen people have trouble with non standard chargers but I'm using the official one.
Would Google be able to exchange just the charger and not the whole phone package? And is it okay to use my Nexus 7 charger for my Nexus 4?
randomvector said:
Hi I recently bought a Nexus 4 16GB from Google Play in the UK. It's been working fine but in the last few days when I connect my phone with the official charger (the one that came in the box) the touchscreen begins to act weird and buggy. More specifically it becomes less sensitive and doesn't function properly. I can scroll down on the app drawer with no problem but scrolling up is extremely slow- its like its scrolling through syrup, same on homescreen. Thinking this was an app or kernel problem I removed an app I thought was causing the issue and reverted kernel back to normal but the problem persists. I now think it may have something to do with the charger being faulty as I am now charging my Nexus 4 with the charger that came with my Nexus 7 and no problems with touchscreen responsiveness or interaction.
Has anyone else had issues with this? as I've seen people have trouble with non standard chargers but I'm using the official one.
Would Google be able to exchange just the charger and not the whole phone package? And is it okay to use my Nexus 7 charger for my Nexus 4?
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Click to collapse
Yes you can use the Nexus 7 charger. In fact, you can use any Micro usb charger cable to charge your phone. The phone will take in the amount of power it needs. It shouldn't be an issue.
Anyone know what could be causing the touch screen issues when charging. That's what confuses me the most. Could it have something to do with the charger heating up or being faulty?
Thanks for the tip about using my Nexus 7 charger instead.
Sent from my Nexus 4 using Tapatalk 2
I know that with some of my older phones, when charging from an inverter that did not stabilize it's output voltage, my touchscreen would do the described. Maybe the charger fluctuates in voltage slightly... This was on my old iPhone 3GS, I can't remember if my Atrix did it... It might not do that on the Nexus
lopezk38 said:
I know that with some of my older phones, when charging from an inverter that did not stabilize it's output voltage, my touchscreen would do the described. Maybe the charger fluctuates in voltage slightly... This was on my old iPhone 3GS, I can't remember if my Atrix did it... It might not do that on the Nexus
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I checked my outlet and tried on other outlets and the current going through is fine.
randomvector said:
I checked my outlet and tried on other outlets and the current going through is fine.
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Click to collapse
It would probably be something with the charger output then. Maybe it has to do with amperage output rather then voltage, I know that some people had issues with the stock charger outputing less amperage sometimes making the phone drop to USB mode. IMO the stock charger kinda sucks and its better to just buy another charger and keep the stock one for backup or something
Hi All
I am looking to install a Nexus 7 into the dash of my new car. I'm just wondering since the Nexus will only charge when I'm driving the car which means I'll also be using it (playing music, navigation, bluetooth etc).
I'm just wondering if there is a charger type thing that I can buy to increase the voltage or something so that it gets more juice while the car is running?
I haven't hashed out the details yet (I'm getting a professional shop to do the work), but I think it will be wired up to power directly so I dont see any wires?
Anyway and ideas?
Thanks in advance
stildawn said:
Hi All
I am looking to install a Nexus 7 into the dash of my new car. I'm just wondering since the Nexus will only charge when I'm driving the car which means I'll also be using it (playing music, navigation, bluetooth etc).
I'm just wondering if there is a charger type thing that I can buy to increase the voltage or something so that it gets more juice while the car is running?
I haven't hashed out the details yet (I'm getting a professional shop to do the work), but I think it will be wired up to power directly so I dont see any wires?
Anyway and ideas?
Thanks in advance
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Haven't never heard about it. But since tech has become crazier everyday maybe there's such a thing.
Enviado de meu Nexus 7 usando Tapatalk
stildawn said:
Hi All
I am looking to install a Nexus 7 into the dash of my new car. I'm just wondering since the Nexus will only charge when I'm driving the car which means I'll also be using it (playing music, navigation, bluetooth etc).
I'm just wondering if there is a charger type thing that I can buy to increase the voltage or something so that it gets more juice while the car is running?
I haven't hashed out the details yet (I'm getting a professional shop to do the work), but I think it will be wired up to power directly so I dont see any wires?
Anyway and ideas?
Thanks in advance
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Click to collapse
There isn't a way to 'increase the charge', the battery has a fixed capacity of 15Wh. The only thing you can influence is charge time by increasing current (up to a certain level only, as the charge controller will limit the charge current).
It will probably be connected to ignition switched power, as connected it to constant power could pose a battery drain risk.
If you only use it when the car has at least its ignition on, then the Nexus 7 should last, especially if you apply some tweaks to maximise standby battery life.
GoneTomorrow said:
There isn't a way to 'increase the charge', the battery has a fixed capacity of 15Wh. The only thing you can influence is charge time by increasing current (up to a certain level only, as the charge controller will limit the charge current).
It will probably be connected to ignition switched power, as connected it to constant power could pose a battery drain risk.
If you only use it when the car has at least its ignition on, then the Nexus 7 should last, especially if you apply some tweaks to maximise standby battery life.
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Hmm, I did a random test playing music etc with the screen on, and it drained the battery even when plugged in?? So I might need to do some tweaks when its on also.
What are you using to charge the N7? Most car chargers have a low amp output, you need something that will kick out a couple of amps.
Sent from my Nexus 7 using xda app-developers app
MobileBritain said:
What are you using to charge the N7? Most car chargers have a low amp output, you need something that will kick out a couple of amps.
Sent from my Nexus 7 using xda app-developers app
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The little test I did was with the wall charger that came with it.
For the car I current have a 5v/1a charger I believe?
stildawn said:
Hmm, I did a random test playing music etc with the screen on, and it drained the battery even when plugged in?? So I might need to do some tweaks when its on also.
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Click to collapse
Interesting. The stock wall charger is 7W. That should be more than enough to at least break even with the device running, except maybe running demanding games. If it was actually drawing more than the charger can supply then the tablet was consuming more than 7W, which would mean that the battery would be flat in less than 2 hours off charger, which is excessive.
When it's installed in the car, I'd expect they would install a regulated 5v step down behind the dash. I would personally want this to be at least 2A at 5V (10W).
GoneTomorrow said:
Interesting. The stock wall charger is 7W. That should be more than enough to at least break even with the device running, except maybe running demanding games. If it was actually drawing more than the charger can supply then the tablet was consuming more than 7W, which would mean that the battery would be flat in less than 2 hours off charger, which is excessive.
When it's installed in the car, I'd expect they would install a regulated 5v step down behind the dash. I would personally want this to be at least 2A at 5V (10W).
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Um I was running it at full brightness, with wifi on, bluetooth on, and music playing.
I think we should probably just have one thread about general install issues. Lets do that here
Sent from my Nexus 7 using Tapatalk
I'm in Thanks flyboy
Sent from my SM-N900P using Tapatalk
My issue is noise while charging. Happens in both my cars, completing different setups, using usb dac in 1 car and the 3.5mm in the other.
Really stuck on this, and not sure where to go to get it fixed
Sent from my Nexus 7 using Tapatalk
flyboy1100 said:
My issue is noise while charging. Happens in both my cars, completing different setups, using usb dac in 1 car and the 3.5mm in the other.
Really stuck on this, and not sure where to go to get it fixed
Sent from my Nexus 7 using Tapatalk
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Click to collapse
I've actually not had much noise while the tablet is charging. But im only using a car charger to charge mine and not a DC-DC since my tablet has constant power. are you using a DC-DC converter?
I've had some noise with music as per my previous postings. I decided to order the Rockford Fosgate BLD Balanced Line Driver which also has a filter in it. My reasoning was I know my DAC was outputting on the smaller side for what my amp could handle so we will see if the filter in conjunction with the voltage increase will make for better sound.
On another note, anyone made progress with backup cameras, preferably using the Febon Grabber?
I'm using a car charger in 1 car, and a pico psu in the other. Doesn't matter what i use, i have tried 2 different usb chargers, multiple cables, a dc dc converter. It doesn't matter, at this point I mm thinking it is my tablet.
Subaru:
Pico psu, uca 202 dac, alpine ktp445u, no head unit
Buick:
Palm usb charger ( best i've ever owned), 3.5mm output, pioneer 740mp, no amp. My note2 works flawlessly in this car.
Sent from my Nexus 7 using Tapatalk
Not sure if I should just order usb isolator like hifimediy sells or a new dac with one built in. Kinda sick of buying parts
Sent from my SCH-I605 using Tapatalk
Yea I would be interested to see if that fixes the issue.
Sent from my SM-N900P using Tapatalk
Im guessing it will, a normal ground loop isolator will fix it too, but it shifts the noise into distortion on my tweeters. So that really isn't fixed imho.
Sent from my SCH-I605 using Tapatalk
I also had some problems with ground loop, but i think i've fixed it.
After i have tested the DAC by plugging in a headphone, i noticed that the noise didn't come from the DAC itself, but from the analog part on the output.
I'am using an amplifier in the trunk that is very near my DAC, i just used an usb extension cable from the usb hub (near the nexus) to my amplifier in the trunk.
then i only use an 15 cm rca cable to connect the dac to the amp (high quality rca cable) and my noise is completely gone.
I just kept the analog part as short as possible and it worked for me.
flyboy1100 said:
My issue is noise while charging. Happens in both my cars, completing different setups, using usb dac in 1 car and the 3.5mm in the other.
Really stuck on this, and not sure where to go to get it fixed
Sent from my Nexus 7 using Tapatalk
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Click to collapse
I'm using a $15 power inverter and the stock Asus wall wart charger to power the tablet, joycon, hub, usb dac. No ground loop noise. :good:
strikeitup said:
I also had some problems with ground loop, but i think i've fixed it.
After i have tested the DAC by plugging in a headphone, i noticed that the noise didn't come from the DAC itself, but from the analog part on the output.
I'am using an amplifier in the trunk that is very near my DAC, i just used an usb extension cable from the usb hub (near the nexus) to my amplifier in the trunk.
then i only use an 15 cm rca cable to connect the dac to the amp (high quality rca cable) and my noise is completely gone.
I just kept the analog part as short as possible and it worked for me.
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Click to collapse
Thanks a lot for the info I might also run a USB cable under the carpet to the amp. Only want to have all the seats out once!
Gilmour509 said:
I'm using a $15 power inverter and the stock Asus wall wart charger to power the tablet, joycon, hub, usb dac. No ground loop noise. :good:
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Click to collapse
I tried the drok converter, that wasn't the problem. The problem is in my lte nexus 7.
I don't remember noise when I had the wifi only, so it is probably something to do with the radio and the charging circuit, or I just happen to get a subpar charging circuit. Either way my noise is originating in the nexus internal circuitry.
Sent from my SCH-I605 using Tapatalk
Is any one using a HD tuner for their installs. Specifically the directedhd tuner? I saw a 2012 installation with the tuner but nothing of the 2013 version. I have one laying around.
Anyone looking for a cheap dac? I'm going to sell my uca202. It works great, sounds good, just want to try something different. Thinking 20.00 shipped, only 2 months old
Sent from my SCH-I605 using Tapatalk
Does anyone have issues with there tablet randomly restarting? I don't get it to often but just enough to be frustrating. I running Timur's kernel but don't think it is related to that. I am guessing it is the cheap power supply I am running it off of at the moment. Anyone run into this and figure out a fix?
tjl_48 said:
Does anyone have issues with there tablet randomly restarting? I don't get it to often but just enough to be frustrating. I running Timur's kernel but don't think it is related to that. I am guessing it is the cheap power supply I am running it off of at the moment. Anyone run into this and figure out a fix?
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Is it overheating?
Sent from my SCH-I605 using Tapatalk
Shouldn't be. I live in Minnesota and it's not to warm out yet. This morning it restarted after a minute or 2 of driving and it was only maybe 60 out.
What extras or what rom are you running?
Sent from my Nexus 7 using Tapatalk
Btw, figured out how to program my m3-atx the other day. It now shuts down after 7 seconds, i couldn't get it to go shorter than that, it allows my amp to turn off before my dac so no more popping on start or shutdown!
Just need my usb filter and i can finally mount everything. Hopefully it shows up before the weekend.
Last thing to do will be to program tasker and a few nfc tags.
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