N7 Wont Charge Unless cord is pushed down. - Nexus 7 Q&A, Help & Troubleshooting

Hi, I have a micro usb cord that I have been using a long time, but just recently it wont charge my device unless I push it down. Im pretty sure that the pins in the male side arent making contact. Other cords work fine. I was wondering if I could somehow bend the pins up in order to make contact.

Usb port sounds faulty on this legacy device. Cut an extra USB cable. Solder or connect internally +/- points to the magnetic points on the side. Been running it on both mine and my wife's device ever since broke our USB port spoilt. Battery and charging is still good till today.

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[Q] Missing pin on stock USB cable or normal design?

Hello everyone, I happen to notice that my stock N4 USB cable has a possible missing contact pin (not sure what to call it). The only other USB cables I have to compare it to are Samsung cables and all the pins are there. I'm curious if that pin is left out by design or it is a defect. Without knowing if it's left out for a reason. I have been reluctant to use my other cables because they do have that extra pin. I'm thinking maybe more pins could be bad if the N4 wasn't designed for it? So my question is, do you folks have all the pins on your stock N4 USB cables. Thanks in advance, Peace.
PS I have had two charging discrepancies since I've owed the phone. Twice when I plugged in (wall socket) my phone shot up to 100% instantly. I had to unplug, power down, plug back in, and power back on to get the proper battery reading again.
Mine appears to be missing too. Maybe it is built that way. I didn't notice until I just checked. I haven't had any problems with file transfers using the cable with my computer or with charging.
Edit: Found this thread on another forum that explains 2 other users having the same issue with their nexus 4s. It appears to be normal. http://forums.androidcentral.com/google-nexus-4/246222-nexus-4-oem-usb-cable.html
Check out the other end. You should only have 4 contacts there too.
They build it like that to save money (less metal). You only need 4 contacts for a USB cable. (The phone side will have all 5 for use in slim port, OTG, etc.)
From left to right in your picture you have:
Ground
Data-
Data+
Voltage
And that's all ya need.
Sent from my Nexus 4 using Tapatalk 2

Shorting the USB Port?

I bought a Nexus One with the infamous broken power button issue, and I am curious what would the effect be if I short the VCC and GND line in the charging port? Has anyone tried that? I am thinking that it will either fry the board or trick the phone to think that it is charging.
The reason I want to do this is because I travel a lot and I might not have access to USB charging if I want to swap the SIM card. I am familiar with the other tricks regarding remapping the trackball_center and I am going to install a version of CWM that doesn't support charging (that way the phone boots when I plug a charging cable).
So long story short... what do you think about attempting to short the micro USB charging/data port?
dcalpha said:
what do you think about attempting to short the micro USB charging/data port?
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Click to collapse
Not much.
Unless the unit is in USB host mode there will be no voltage on the Vcc line.
Even in USB host mode it should be current limited and do no damage.
Still, I wouldn't do it.
I don't know why you think that shorting it will do something useful.
Renate NST said:
Not much.
Unless the unit is in USB host mode there will be no voltage on the Vcc line.
Even in USB host mode it should be current limited and do no damage.
Still, I wouldn't do it.
I don't know why you think that shorting it will do something useful.
Click to expand...
Click to collapse
I actually do not know, thus I asked... just trying to think outside the box about a way to trick the phone to think it is charging short of carrying a portable battery charger with me (which can be problematic on carry-on luggage).
Another idea I am thinking about is building a small flex cable using a conductive ink pen that permanently connect to the phone's battery on one side and a cut down male micro-usb on the other side (to slim it down). Such cable would be small enough to fold under the battery cover and allow it to close.
My question is: Will the ~3.7v be enough to get the phone to start charging? and do you foresee any issues with feeding power from the battery right back into the phone's charge port?
dcalpha said:
Another idea I am thinking about is building a small flex cable using a conductive ink pen that permanently connect to the phone's battery on one side and a cut down male micro-usb on the other side (to slim it down). Such cable would be small enough to fold under the battery cover and allow it to close.
My question is: Will the ~3.7v be enough to get the phone to start charging? and do you foresee any issues with feeding power from the battery right back into the phone's charge port?
Click to expand...
Click to collapse
I think 3.7 won't be enough. Coz usb giving ~5V. So phone won't charge at smaller voltage.

[Q] Nexus 7 short circut damage help, please.

So, I apparently did something very stupid with my new Nexus 7.
I have a few 1 TB external hard drives, which don't get enough power via an OTG adapter from the Nexus 7 to run. So, I purchased a two into one cable -- that is, a cable that combines two male USB A plugs into one Micro USB B plug so that a USB 3.0 hard drive can use two USB 2.0 ports to have enough power. I had planned to use this to enable use of the hard drives with the Nexus 7 while traveling by plugging one cable in the tablet and the other into a charger.
When I got the cable I tested it by plugging one of the USB A plugs into my Nexus 7, and then I plugged the other into my computer's USB port. The Nexus 7 promptly shut down, the computer complained of a power surge on the USB port, and a distinct smell of melted plastic came from the computer's USB port. I guess the combining cable didn't combine so much as it just acted like a double headed male A USB cable and shorted things out?
The Nexus 7 refused to restart afterwards until I it plugged it into its charger. It works now, mostly. However, if its battery charge is above about eighty-seven percent then it always reports that it is charging, regardless if it is plugged in or not. And if I plug it into a computer while it is reporting that it is charging I have to restart the tablet to get it to connect to the computer -- I guess it thinks it is connected to a charger and doesn't bother checking for a data connection unless restarted.
The level where it stops thinking it's charging varies somewhat -- I've had it still claim to be charging all the way down to eighty-two percent charge, and by repeatedly opening the battery app over and over again I have been able to get it to notice that it's really not charging all the way up to ninety-one percent, but no higher, and I have to open and close the battery app an increasing number of times for every percent that it goes up over eighty-seven before it will notice it's not charging.
Any idea what kind of damage I'm looking at? How to fix it? Whether I can get the warranty people to fix it free of charge? If yes, whether they will send me a new one or just fix the one I have? Whether it's worth getting fixed since it mostly still works, and doesn't really bother me as long as it doesn't get worse?
Nothing?
Nothing from anyone?
Try replacing the internal USB plug? About $25. Easy to do your self.

Weird charging issue...

Hand my Nexus 6P three days now. Everything has been fine until this after noon.
Came home and put it on it's stock charger took it off a few hours later and noticed it was at 78%. I put it back on the charger and say it was not taking a charge. Here is where it get strange. The phone will charge off other chargers and the Nexus Charger will charge my LG G5 but the Nexus xharger and the Nexus will not work together.
Don't know if this matters, but I have noticed that the USB-C port of the Nexus 6P is a bit tighter than that of the G5.Don't think that should effect anything, but thought I'd mention it.
As i just got it I'm considering taking it back to Best Buy, but it's the 128gb model and I'd have to wait for a replacement.
Any ideas or should I just exchange it.
OK, this is a new one...
I rebooted the device and it seem to be charging with the stock charger again.
I'll have to keep my eye on this.
In the past I've noticed charging issues (on the 6p or previous android devices) can be caused by a dirty usb port (sometimes it's even caused my phone to restart over and over). I *carefully* used a bent paperclip and a *small* piece of cotton soaked in rubbing alcohol (I used ripped the end of a toothpick) to clean out the port. I got a decent amount of gunk out of it. (Caution though, I've also broken several ports and had to send for an asurion replacements when I wasn't extremely careful while pressing down on the middle tab/contacts of the usb port.)
EvanVanVan said:
In the past I've noticed charging issues (on the 6p or previous android devices) can be caused by a dirty usb port (sometimes it's even caused my phone to restart over and over). I *carefully* used a bent paperclip and a *small* piece of cotton soaked in rubbing alcohol (I used ripped the end of a toothpick) to clean out the port. I got a decent amount of gunk out of it. (Caution though, I've also broken several ports and had to send for an asurion replacements when I wasn't extremely careful while pressing down on the middle tab/contacts of the usb port.)
Click to expand...
Click to collapse
Hummm.... I might just use compressed air every so often to try and keep things out of the USB port. Don't wanna be sticking things in there that might break it.
But the phone is just a few days old so I don't thin that was my issue.
I have a new Nexus 6P, and mine seems very finicky when charging over USB using a Benson Leong approved Type C-to-A connector. In fact, I end up losing a charge quite rapidly sometimes, as if my Nexus is trying to charge my desktop computer (i.e. "power supply" mode), even though it's in USB charge mode. However, it will work fine on a wall charger. I try to avoid wall chargers since it's hard to beat computer power - I mean the wall charger isn't a 650W 80+ Platinum PSU with all the fancy safeties and ripple suppression. Any idea what it could be? I think it might be a software bug.
jerm1027 said:
I have a new Nexus 6P, and mine seems very finicky when charging over USB using a Benson Leong approved Type C-to-A connector. In fact, I end up losing a charge quite rapidly sometimes, as if my Nexus is trying to charge my desktop computer (i.e. "power supply" mode), even though it's in USB charge mode. However, it will work fine on a wall charger. I try to avoid wall chargers since it's hard to beat computer power - I mean the wall charger isn't a 650W 80+ Platinum PSU with all the fancy safeties and ripple suppression. Any idea what it could be? I think it might be a software bug.
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Click to collapse
First, just use the wall charger.
"I try to avoid wall chargers since it's hard to beat computer power - I mean the wall charger isn't a 650W 80+ Platinum PSU"
you are very wrong with that statement!
Depending on the trype of USB you computer has it will only supply a fraction of the power your charger will. USB 2.0 will max out at 500mA (.5A) USB 3.0 will max out at about 900mA. Many of the ports on you PC will supply even less power, usually one one port will actually supply the the full power of the USB standard. The PSU on you computer has nothing to do with it.
It is generally recognized that that using a computer to charge you phone is very slow and only if you have no other option, and even then you have to plug it into the main port to make sure it has enough power to charge (slowly) you device. Unless you lucky enough to have a new computer with USB 3.1 type-C that can deliver up to 3A, stay away from charging from you computer.
I just tested on four on my computers USB ports on my computer and only one gave me a little over 1A and that almost 1/3 of what the Nexus wall charger can do.
RojasTKD said:
OK, this is a new one...
I rebooted the device and it seem to be charging with the stock charger again.
I'll have to keep my eye on this.
Click to expand...
Click to collapse
My 6p did this after I used a cheap usb a-c cable off eBay to charge my device in the car, after a reboot and a replacement a-c cable (belkin this time) I've never had issues again. Like you I only had issue with the original nexus charger when I went to use it at night, other chargers were fine, and a reboot did solve the issue.
RojasTKD said:
First, just use the wall charger.
"I try to avoid wall chargers since it's hard to beat computer power - I mean the wall charger isn't a 650W 80+ Platinum PSU"
you are very wrong with that statement!
Depending on the trype of USB you computer has it will only supply a fraction of the power your charger will. USB 2.0 will max out at 500mA (.5A) USB 3.0 will max out at about 900mA. Many of the ports on you PC will supply even less power, usually one one port will actually supply the the full power of the USB standard. The PSU on you computer has nothing to do with it.
It is generally recognized that that using a computer to charge you phone is very slow and only if you have no other option, and even then you have to plug it into the main port to make sure it has enough power to charge (slowly) you device. Unless you lucky enough to have a new computer with USB 3.1 type-C that can deliver up to 3A, stay away from charging from you computer.
I just tested on four on my computers USB ports on my computer and only one gave me a little over 1A and that almost 1/3 of what the Nexus wall charger can do.
Click to expand...
Click to collapse
You're very wrong in your interpenetration of my statement. The low amperage is precisely what I want. If I'm in a hurry, I'll use the rapid wall charger, otherwise I charge my phone overnight; it's habbit and convieniet for me since I have a small room and sleep next to my computer. The slower charge puts less wear on battery and it doesn't trickle as long either. There is also a redundancy of protections - the surge and overvoltage protection of the motherboard, from the PSU itself (including ripple/noise suppression) and then there is the surge protector the computer itself is plugged into - there isn't any safer or cleaner power in the house for charging my phone.

Charger Cable Has Gone Loose, Found Traces of Wax in the Port

Yesterday, I noticed some wax in my official charger cable's USB-C port. I noticed the same wax in my S8's USB-C port. The charger cable wasn't going all the way in, it felt odd. So I tried to clean out the wax that was visible inside the port on the phone as well as the charger.
Even after that, I still feel that my charger cable is detaching from the phone far too easily, than it used to before.
So, can anybody confirm if their charger cable locks in firmly, and while detaching does it require some effort or it detaches smoothly without any pull.
In fact, I just tried moving the cable around while it was plugged in and the phone immediately alerted me that the phone is no longer charging as the charger isn't plugged properly.
How come you dipped it in wax?? My charge cable works just fine. No wax to speak of
alsiladka said:
Yesterday, I noticed some wax in my official charger cable's USB-C port. I noticed the same wax in my S8's USB-C port. The charger cable wasn't going all the way in, it felt odd. So I tried to clean out the wax that was visible inside the port on the phone as well as the charger.
Even after that, I still feel that my charger cable is detaching from the phone far too easily, than it used to before.
So, can anybody confirm if their charger cable locks in firmly, and while detaching does it require some effort or it detaches smoothly without any pull.
In fact, I just tried moving the cable around while it was plugged in and the phone immediately alerted me that the phone is no longer charging as the charger isn't plugged properly.
Click to expand...
Click to collapse
That's very strange, both the usb-c adaptor and the usb-c cable seem fine to me, both for quite securely.

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