Database Users

Laptop dock issued

I just got the laptop dock yesterday. I figured my phones battery being low was keeping the laptop from working. It charged over night but I'm getting the same results. I get nothing on the laptop screen and nothing on the phone indicates it sees the laptop. The charging light on the laptop comes on and blinks when I plug in the AC adapter. I know the USB port on the phone is working since it works on my laptop. I tested the HDMI on my TV and works too.
Sent from my SAMSUNG-SGH-I777 using xda premium

Tell us a little more about your phone if you dont mind. What ROM are you using? If you are stock it should work out of the box however stock is the operative word here.
If you are using a custom ROM that may be part of the issue, depending on the ROM it may have had the webtop partition and software removed. If you provide a little more information we may be able to point you in the right direction

We both have stock gingerbread. We are not rooted either.
Sent from my GT-P7510 using xda premium

praetorrian said:
We both have stock gingerbread. We are not rooted either.
Sent from my GT-P7510 using xda premium
Click to expand...
Click to collapse
Make sure the lapdock is charged. There is a little battery button on the front that when you press, up to 5 LEDs light up, where 5 LEDs on indicates a full charge. The lapdock has its own battery and charges the phone when docked. Mine came about 75% charged. It's possible you have a defective lapdock/battery.

It shows the dock to be at full charge.
Sent from my GT-P7510 using xda premium

Interesting. The way you say both the USB and HDMI work with your laptop and TV leads me to believe the problem is with the lapdock, because at the very least you should see on the screen of the lapdock what you are seeing when you plug it into the TV via hdmi.
I just got a lapdock today as well, not extremely happy with the build design, but it seems to be a nifty little tool to have. Kindof like netbook sized, and works decent with my phone.
Do you only have one phone to try it with?

We only have the one Atrix.
Sent from my GT-P7510 using xda premium

Is this a refurb or new? The reason I ask is that return warranty will be different. Also, if you have a new one and return it, I am about 99% sure you will get a refurb. If it is defective, you need to swap it out while you still can. 30-day return is the norm.

why wont my nexus 7 8GB charge?

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.
Click to expand...
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

How many got N4 bricked because of Red Light

I just wonderding how many ppl here got red light issues?

had this problem just now. discharged battery and wont turn on.

Ive had it 4 times lol get to bootloader flash to stock reflash rom all good to go
Sent from my Nexus 4 using Tapatalk 2

how?
joshndroid said:
Ive had it 4 times lol get to bootloader flash to stock reflash rom all good to go
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
i've tried all the power + volume combos...how did you get to bootloader?

If people just let their phones charge undisturbed overnight and tried the next day to boot, that number would be -80%..

I bricked my N4 by accidentally flashing a wrong bootloader - a simple error that proved fatal!
Sent from my Nexus 7 using Tapatalk 2

jchoong said:
I bricked my N4 by accidentally flashing a wrong bootloader - a simple error that proved fatal!
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
That would brick basically any phone. You don't play around with flashing the bootloader unless you're sure.

Got the red light once while doing benchmarks.. But i was able to get into bootloader mode reflash system img.And bam i was good to go..

Dang man, this same problem is happening to the LG Optimus G. There is a thread on xda for that phone and the op says to take the back cover off, disconnect the battery then reconnect it and that fixes it. Maybe worth a shot on the nexus.?? That is if you don't want to reflash the phone.
Sent from my Nexus 4 using xda premium

lyall29 said:
Dang man, this same problem is happening to the LG Optimus G. There is a thread on xda for that phone and the op says to take the back cover off, disconnect the battery then reconnect it and that fixes it. Maybe worth a shot on the nexus.?? That is if you don't want to reflash the phone.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Why you want to do it the hard way that void the warranty than the easy way?
Sent from my Nexus 4 using xda premium

I plugged on my friend's car charger and suddenly my phone turned off and wont turn on.
When I plug on charger or USB and keep holding power, red led blinks many times, faster and faster.
My computer wont recognizes it.
Any solution?

rsb007 said:
I plugged on my friend's car charger and suddenly my phone turned off and wont turn on.
When I plug on charger or USB and keep holding power, red led blinks many times, faster and faster.
My computer wont recognizes it.
Any solution?
Click to expand...
Click to collapse
Holy crap. It's literally IN THIS THREAD.
Leave it on your charger for several hours and see if it boots. If not, it's probably RMA time.

It's plugged for about 10 hours and nothing.
I live in Brazil, no sells here yet and it was bought on USA.

richteralan said:
Why you want to do it the hard way that void the warranty than the easy way?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
I was just mentioning other options just in case someone couldn't get into the bootloader. What if you send the phone to lg because you couldn't get into the bootloader to reflash and they can by disconnecting the battery and find out that you are unlocked and rooted when the phone boots back up, which would also void your warranty. Although I would not take the back cover off if the phone was stock, might as well send the phone back if you can't get it to boot.
Sent from my Nexus 7 using xda premium

rsb007 said:
It's plugged for about 10 hours and nothing.
I live in Brazil, no sells here yet and it was bought on USA.
Click to expand...
Click to collapse
I am in exactly the same situation as you. Prospects to resuscitate our bricked Nexus 4 are extremely dim!

Im wondering if what is posted Here may cause this issue?
Please, any advice will be thanked.

donchele said:
Im wondering if what is posted Here may cause this issue?
Please, any advice will be thanked.
Click to expand...
Click to collapse
You seem to know very little about how chargers, batteries and charging circuitry works. To put your mind at ease, a USB 2.0 port is rated at 5V DC, 500mA. That will charge a Nexus 4, albeit slowly. Your 0.7A charger isn't going to fry anything, as there are multiple safeties built in, unless something is SEVERELY wrong with it, meaning faulty construction.

estallings15 said:
You seem to know very little about how chargers, batteries and charging circuitry works.
Click to expand...
Click to collapse
Yup, that is the reason im asking
estallings15 said:
To put your mind at ease, a USB 2.0 port is rated at 5V DC, 500mA. That will charge a Nexus 4, albeit slowly. Your 0.7A charger isn't going to fry anything, as there are multiple safeties built in, unless something is SEVERELY wrong with it, meaning faulty construction.
Click to expand...
Click to collapse
So you are telling me that, unless there is any issue with the charger (faulty construction) there is no reason to worry about that it will lead to this "Red light of death" or any other issue (lowering battery lifetime for example)?
This is totally off topic but, Do you (personally) think it's true what people say that charging a cellphone with a lower output charger increases its battery service?

Quick question:
Does this red light issue appear when battery is drain to 0% (among other factors)

donchele said:
Yup, that is the reason im asking
So you are telling me that, unless there is any issue with the charger (faulty construction) there is no reason to worry about that it will lead to this "Red light of death" or any other issue (lowering battery lifetime for example)?
This is totally off topic but, Do you (personally) think it's true what people say that charging a cellphone with a lower output charger increases its battery service?
Click to expand...
Click to collapse
There is no reason to worry unless the charger or your phone is faulty, in other words, hardware failure on either side. Unfortunately there would be no easy to foresee that.
The charging circuitry will only use what it needs to do it's job. As long as the voltage is within range and the current is not too LOW, you're OK. The N4 is rated at 900 mA to perform a standard charge. It will accept as low as approx. 500 mA to charge in USB mode. That idea is rubbish.

2 month old ZTE AXON 7 won't quick charge anymore.

My phone is two months old and has ceased to quick-charge. Actually, 90% of the time, it will only charge when powered down. I use the factory charger and cable but get a message that I need to use the original charger and cable. Catch 22?
I bought it at Best Buy so I took it back to them this evening. My charger is fine as is my cable. Best Buy confirmed that my issue is a factory defect and politely sent me on my way. I take care of my phones if nothing more than the fact that I've had to replace micro USB ports in the past. The weird thing is that when it charges powered down, it seems to refresh to full battery very quickly.
Has anyone else had similar issues? If in fact, I do have to deal with ZTE, what has been members experience?
Thank you for letting me vent.
Sent from my SM-N915F using XDA-Developers Legacy app

U can test your charger using USB volt amp reader on another phone which supports quick charging.
If charger works as it should then u need to test your phone with multimeter to see how much current it draws while phone is powered off without charger (battery only).
But that means you need to open 2 month old phone which i dont recommend if u have warranty.
Axon 7 draws about 2.66-2.68 amps while in quick charging mode. Volts i forgot but i think it was 6v. I'm not in shop at the moment so i cant know exactly.
But for amps i remembered.

Wallor77, thank you for your reply. My charger is in good working order. In fact, I have several 2.0 and 3.0 chargers. They all work fine on my Samsung Galaxy Note Edge. The Samsung displays "Fast Charger Connected" on the lock screen.
Now my ZTE Axon 7 will not charge while it is powered up. As soon as I turn it off, it charges just fine. This is really annoying!
Sent from my ZTE A2017U using XDA-Developers Legacy app

If your charger and cable are OK, perhaps have you recently installed an application which limits the power. Such methods exists in some antivírus to preserve the health of the battery. It's just an idea.
Envoyé de mon ZTE A2017G en utilisant Tapatalk

Same thing there. If it charges normally while power off u need to see how much amps. USB volt amp reader is a good little device. I recommend for everyone to get one. It cost about 15 bucks. From there it's all about elemination process to diagnose proper issue

wallor77 said:
Same thing there. If it charges normally while power off u need to see how much amps. USB volt amp reader is a good little device. I recommend for everyone to get one. It cost about 15 bucks. From there it's all about elemination process to diagnose proper issue
Click to expand...
Click to collapse
I second this. But $15?! You can get them for about $5 on aliexpress!

U have USB volt amp reader with both volt units, amp units, time duration and mAh over time charged value. But 15$ was about avarage price listing. I'm sure there is cheaper as well.

UPDATE: 6/2/17
I ended up sending my phone to the ZTE repair center in TX. It took about 3 weeks to get it back. There was no explanation of what was repaired and I received my original phone; not a refurbished one. All I know was that it was covered.
Sent from my ZTE A2017U using XDA-Developers Legacy app

I am in the process of returning my 3rd Axon to ZTE. 2 of them have had this problem. It's definitely known because when I was talking to them and told them what was happening they just kind went "yeah ok" and fast tracked the whole thing. Thank god for this warranty, their quality control is ****e.

anyone noticed that occasionally it stops charging?

front firing speakers said:
anyone noticed that occasionally it stops charging?
Click to expand...
Click to collapse
Last night, mine started doing this. It goes on and off about every two seconds. What's weird is it only does this with the quick charger. it slow charges when connected to a PC usb just fine. Its not the OEM charger either since my wife's quick charges just fine with the exact same charger.
Guess I'm going to have to call ZTE....

Mine suddenly stopped quick charging - I have 3 different chargers that work fine with other phones except for this one. And chances of all 3 of them going bad at the same time are slim to none. Tested different cables as well, but again same result. It charges with normal speed even when connected to QC3.0. Tried wiping cache. I think it's no different if I turn the phone off. Think it might be time to move on. Had it since December 2016, so I guess it's nearly 2 years old now. Still shame.

bustr85 said:
Mine suddenly stopped quick charging - I have 3 different chargers that work fine with other phones except for this one. And chances of all 3 of them going bad at the same time are slim to none. Tested different cables as well, but again same result. It charges with normal speed even when connected to QC3.0. Tried wiping cache. I think it's no different if I turn the phone off. Think it might be time to move on. Had it since December 2016, so I guess it's nearly 2 years old now. Still shame.
Click to expand...
Click to collapse
Quick update. Swapping batteries (OEM) hasn't helped. I wonder if this is software or hardware related

Let me add to this thread. I'm also not getting quick charge anymore for maybe a month already. Tried different cables, booting to safe mode, etc. There are few instances where i see quick charging but very rarely. I was thinking it's my usb port but I haven't opened my phone yet to verify.

how to fix Nexus 7 grouper slow charging ?

i already change the battery because of age (die, cannot be charge anymore)
a replacement came and my nexus 7 see the light of day again, well is me who see my nexus 7 light
but the problem of slow charging still remain.
can anybody give me a 100% solution for this accept replacing my nexus 7 with newer tablet?
if i monitor with ampere meter only 80mA - 460mA with different combination of cable and charger head.
poor me but i love this tablet and i refuse to let it die.
any help would be appreciated
BTW: USB port still working fine, i can copy paste custom rom via usb.

replace charging port with a new one

iwjosi said:
replace charging port with a new one
Click to expand...
Click to collapse
Okay this comes to my mind also. But is there any easier way like bypass the micro USB and charged the battery externally [emoji16]
I hope I still can find USB port parts in cheap price
Thank you
Sent from my Nexus 7 using Tapatalk

Well after changing my usb port still slow charging. Well at lease my nexus is coming back to live (sort of)
Sent from my MI 5 using Tapatalk

What system are you running?
I got a Nexus 7 recently on stock Android 5.x that was unresponsive and took almost a day to fully charge and would even lose charge while being plugged in via USB. After installing TWRP and Omni 4.4, it charges much faster and doesn't lose charge as quickly. This doesn't have to be a hardware issue.

I agree with NovusDeus. It does not have to be a hardware problem. My understanding is that the Nexus 7 becomes really slow after Android 4.4. This is both running and charging. Android 5.x is supposed to be very bad.
I experienced the same problem as you. I finally gave up and decided to root it, since I read about some rooted roms that had much improved performance. The moment I completed the process, I had the performance of my original Nexus back, and it charged quickly, too.

shorinjin said:
I agree with NovusDeus. It does not have to be a hardware problem. My understanding is that the Nexus 7 becomes really slow after Android 4.4. This is both running and charging. Android 5.x is supposed to be very bad.
I experienced the same problem as you. I finally gave up and decided to root it, since I read about some rooted roms that had much improved performance. The moment I completed the process, I had the performance of my original Nexus back, and it charged quickly, too.
Click to expand...
Click to collapse
Oh okay that new to me.
I'm using purenexus with android 6
But I think I have latest omni ROM somewhere in my HDD
OK than let me change my ROM and see what happens
Now my nexus charge "normally" about a night from 10%
Sent from my Nexus 7 using Tapatalk