Hello guys.
I have a Nexus 7, with a huge problem.
Ever since my little sister took it to Europe (and plugged it into a 220 volt instead of the 110 that we use here in the U.S), it died. Now, I've opened it and checked if the battery was somehow poorly plugged or something, but nothing.
The device will not turn on unless connected to a power source (and even then, not 100% of the time) (both my Macbook and wall work). This is what it looks like:
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Is this a battery problem? Or a screen problem?
Also, when I took these pictures, it was the first time I could see the "Google" logo on the screen (although barely)
Any help would be greatly appreciated!
From the look of it you have either a damaged motherboard or screen. The motherboard is probably more likely. Can you check on your charger and see what the input voltage is some chargers can cope with 100-240v. What happens when you turn it on/plug it into a computer does it boot is it recognised by the computer? And lastly is there any possibility it was dropped?
Its possible that doubling the input voltage may have produced a surge in the usb voltage but it would be more likely to just fry your charger.
Sent from my Nexus 7 using xda app-developers app
Related
Hey guys, I posted here yesterday because my nexus 4 is stuck charging in USB mode which is really really slow, but I finally got it fully charged overnight. Since I have no way to quickly charge it I decided to see how much I could squeeze out of a charge. This is only the second time that the battery has been fully charged and I did everything I could think of to conserve battery: mobile data off, 2g network only, wifi off, sync off, lowest screen brightness, all GPS and location settings off, Google+ disabled, and using the phone very minimally. Other than sending less than 100 texts the phone was just hanging out in my pocket and this is how long the battery lasted.
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Pretty atrocious. Anybody have any tips? I am thinking that since the phone is stuck in USB charging that could have something to do with it and maybe I just have a faulty device. I already contacted Google about an rma for the USB issue and I have a new phone on its way, but god knows when it will arrive. Thanks for any help!
Sent from my DROID RAZR using xda app-developers app
Sounds like getting a new one was a good idea. In the meantime it will make a great paperweight.
Unboxed the packing, Charged the Nook for 3Hrs. It wont turn-on on pressing the power button on the back. I have tried long press for as long as 1min. Still no help.
It just displays Fully charge the device before first use !
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It show a green light when connected for charging.
One more thing is that when I connect to the computer, It shows some error USB Notification - "USB Device not recognized".
I have seen a few things about taking the nook apart, I think it would be my last resort. I don't replacement is viable option as I got it shipped to India.
Hoping some one would help me out.
It seems that the charging system/battery has gotten out of whack.
Usually people open the case, disconnect then reconnect the battery.
It could be that the battery is bad too.
It's good that it shows something when plugged into the USB.
What exactly is the unrecognized USB device PID/VID?
Replacement
I thought of taking it apart but it has break seal on the screw. Didn't wanna void warranty .
Thank you for the help ! I just found someone to take it back to the States. B&N will replace the device.
As the title says I'm a little confused about the way how nexus 7 acts when charging. I have never even noticed this thing before but it seems that my nexus 7 is sleeping while it charges. I have tried many combinations like stock ROM+stock kernel , cm11+cm kernel, cm11+ franco and cm11+M-kernel. Every time I check cpu spy I see that device has been almost all time deepsleeping. I'm using the stock charger.
Here's example screenshot (sort period yes, but there you can see it):
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I've read many forums and I have experiences with other devices that deepsleep shouldn't be there during charging due charging process. Device works otherwise fine and it charges normally but I'm just wondering if something is wrong on the hardware side. Some information and experiences with other nexus 7 devices would be highly appreciated! I know this is almost meaningless thing, but I'm just curious to know if this is some kind of feature of nexus 7 or if I just have sleepy unit
Thank you!
Sent from my dog's N7 running CM11 via Tapatalk
Goodday folks, So i have a 910F running stock android 5.0.2 i recently noticed that sometimes my battery charges really slow from 90% till 100% to measure charging current i download an app called battery monitor by 3c. The current seems to be normal however i noticed another weird issue that my phone continues to draw some power from charger even when the battery indicator is full with green led (the draw seems to be going down around 100ma when i took it off) . Im using stock fast charger and cable can anyone else confirm if this is normal or if i have a defective unit? Attaching a picture for reference. Thanks
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it will draw power to keep the battery at 100%
and it's normal for the charging rate to go down a bit when almost full.
a battery produces more heat while charging when it's almost full, so they need to slow down the charging to reduce the heat production.
I received a faulty Tab A (soft brick) which I was able to fix, however it seems to charge very slow. I used 3 different chargers for a Samsung and Xiaomi mobiles and Asus tablet, all around 2-4a, but they all charged at the same rate. It took 5hrs to reach 94%. I left it on flight mode for the last 24hrs and it's only dropped 1% (which is amazing) so I'm sure it's not the battery at fault. If multiple chargers/cables are charging at the same rate and the battery loss is solid I'm guessing it could be the USB port. If not, what else could it be? I don't know the history of this tablet as they just dumped it on me.
Very shallow curve, it should be a lot steeper:
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Hello, I own a T585 and I can tell you that this is very picky with loading ports.
I have a multi loader (Easyacc) and the Tab is only with 2.1 Ampere fast charging.
Not with 1.0 not with 2.4 not with more.
Reccomend you to use a similar charger or a original.
I didn't quite understand what you mean. So I have to use a 2.1a charger or original Tab A charger only? I found them in 5v and 12v, both for Tab A, which one is correct?