yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Q&A, Help & Troubleshooting] Unimetano:
I have the same problem

Does anybody solve this issue?

I have the same problem, please help me

Write me to leoperez@hotmail.com

Thx
[Nexus 7 Q&A, Help & Troubleshooting] mswin341:
Nexus 7 not charging/USB not detected while turned on

I think the only answer is a faulty USB connection.

I tried to change mine and finished up snapping the connectors. :crying:

Now have one useless N7
[Nexus 7 Q&A, Help & Troubleshooting] joeblowma:
Long story short: plugged the n7 into the car's OEM stereo USB port on a long trip and it registered as a device with the stereo and let me play some music off of it, when I woke up a couple hours later it wouldn't charge.

After a short bit of troubleshooting, I found that OTG devices were still working but it would only charge if I shut it right down - if I start it charging while it's turned off and leave the charger attached while powering it up it's not detected by the software so it never says it's charging, but does still charge - though if at any point I pull the charger from either the n7 or it's supply I have to shut it right down again to get it to charge. Unfortunately, the same can't be said of a PC USB device connection (aside from the charging part of course.)

After a couple weeks using it like this, I got my hands on a multimeter (my stuff is all packed in storage indefinitely or I'd have been replying to this topic sooner) and confirmed that I never register anything beyond a few millivolts on the detect/sense pin (which I find very odd as it's supposed to have a pull-up) with nothing attached to the usb port, and that aside from a short time in fasboot that unless the n7 is powered right off it's trying to supply 5V to the USB connector. I attempted to use the faux123 kernel that has options to disable this power to allow host+charging (and my hope was to slow the battery rundown to make it more usable even if I have to shut it off to charge it), but the n7 appears to ignore this and still powers the USB connector.

In this case it most definitely is NOT the IO/USB/headphone assembly inside the unit. At the moment I'm operating on the theory that Asus skimped on protection circuitry in the charge circuit as in my mind this type of damage should never occur when it's properly designed, and I'm presuming the motherboard dead with regards to being a USB device - too bad my warranty is likely up, though I can't check that as it was a gift and all the paperwork is buried in storage. Thankfully it's still capable of fast charging when off, though this doesn't leave me very happy as this also effectively takes away most recovery options if fastboot is the only thing left working.

If I manage to source a replacement mobo I will work on doing a post-mortem and seeing if it's down to a faulty component (I've seen this sort of behaviour before, a pulled up line not getting pulled up, when a filtering capacitor decides to go flakey.) More likely though I'll either sell it, give it away or put it on the junk pile with the rest of the Asus products I've had to retire in the last month due to their questionable customer support (the other products were due to Asus deciding they were "legacy products" and not updating drivers for windows 8/8.1 despite only being 5 years old.)
[Nexus 7 Q&A, Help & Troubleshooting] mswin341:
Nexus 7 not charging/USB not detected while turned on

Very Interesting

I am sure you are right, but I'm not qualified to agree or disagree.

I have had quite a few Asus products in the past and never had any problems.
[Nexus 7 Q&A, Help & Troubleshooting] afriza:
My Nexus 7 (2012) was also charging properly. I only have the issue that it only charge when turned off AFTER I charged it:

(1) using car charger; and

(2) charge it using official charger but inside a train using train's power plug

So it seems that these devices really need a normal wall-charging paired with official charger.. otherwise, something bad might happen..

Has anyone tried to use Wireless Charger? does it work?
[Nexus 7 Q&A, Help & Troubleshooting] amateurhack:
Bumping the thread - more info

Hi guys,

Ok, so I just ran into this same problem. Yep, it might be a hardware problem with either the USB connection, or with something with the usb stuff on the motherboard. I'm hoping that that isn't the case, of course. But I noticed some ancillary problems that may be related, and am hoping that these are indications of a non-hardware issue, and that some of you may check and see if these happen to you as well.

Basically in addition to the obvious problem described in the thread title and the op, I also have noticed that attempting to toggle the mtp/ptp setting under storage or toggling adb under dev. tools will cause a system restart.

If you would, check those and report back here.

Thanks,

AH
[Nexus 7 Q&A, Help & Troubleshooting] hazwheel:
Same problem for me, except it will charge 50℅ of the time if the screen is off, but not at all if it is daydreaming. It IS recognised as a media device though so I can copy to and from it
[Nexus 7 Q&A, Help & Troubleshooting] Captain Sweatpants:
no usb and wont charge while turned on

I have exactly the same problem in my case I used a damaged USB cable and I think that possibly the data pins got shorted out or got a whack of 5volts in any case its not a broken connection or a loose battery ( do check these first as if yours is loose its a much easier fix). In my case the only solution is to head over to fleabay and look for a replacement motherboard. If you are an unscrupulous person by nature you may then sell your old motherboard "as seen" :angel: Perhaps if you do buy a motherboard you may want to ensure returns are accepted.

I am disappointed but not entirely surprised that Asus haven't provided better protection against this as it could be caused by any number of things metallic dirt in a connection or even just a "generic" USB charger.

Note as the motherboard is where the nexus keeps its little electronic soul you will be dealing with an entirely new tablet it may not be wise (please correct me if I'm wrong) to flash any backups you may have.
[Nexus 7 Q&A, Help & Troubleshooting] Captain Sweatpants:
for some reason I can't edit my post

Anyway to update

My N7 is now completely dead I discovered that the problem was a non OEM USB charger putting out way over 5 volts flutuating between 8 and 14 volts. Not a faulty cable as i thought. I plugged in the nexus (swiched off) to charge it and fried the other charging circuit the nexus showed the boot screen then the screen started to flicker and I shut it down now it won't boot at all. I have had to disconnect the battery as the CPU on the motherboard keeps getting very hot with the battery connected must be shorting out somewhere in there.

Poor show from Asus on protecting our devices when I plugged the same charger into my sony xperia SP it wouldn't charge but didn't damage the handset at all.

Now awaiting my new motherboard but no chance of transferring any files:( never mind most of its backed up

Sent from one of my 47 iPads running android C3P0
[Nexus 7 Q&A, Help & Troubleshooting] joesnose:
My nexus was taking forever to charge through usb, so i charge through the pogo pins. Eventually the usb port stopped working all together. Took a look at the usb board, all looked good, ran a multimeter over it and the 5v line was not getting as far as the ribbon connector. Ran a soldering iron over the connections at the back of the usb port and now its working. Still doesn't charge well through usb!
[Nexus 7 Q&A, Help & Troubleshooting] Captain Sweatpants:
My nexus is now working again all it took was a new motherboard, charging port, charging port ribbon and a new battery.

Man that 15 volts wreaked havoc with the circuitry??
[Nexus 7 Q&A, Help & Troubleshooting] Cazpian:
Same Problem - More information

Hi, I have the same issue and have replaced both the battery and the USB power/charging circuit board at the bottom of the device. This problem still exists so I'm assuming that its somewhere between the motherboard and the USB feed in.

Joeblowma mentioned connecting a multimeter to check the voltage on the "detect/sense pin". Are you able to indicate which pin this is, where it can be found and how you identified this pin to be the sensor pin?

Kind Regards,

Tim
[Nexus 7 Q&A, Help & Troubleshooting] joeblowma:
Basically you are searching for "usb micro-B pinout", the extra pin usually being labeled as ID. If you are looking at the USB connector in the N7 with the back off and the port facing you, the leads from left to right are GND/ID/D+/D-/VCC, orientation can be verified quickly by using a dmm to verify ground pin.

Personally I was making an assumption which may be very wrong - that because a cable that enables host on OTG connects this to ground, and it is left floating when usb is in device mode, that there should be a pull up for it to be able to detect logic high when it's left floating. This kinda thing also all gets more complicated when you factor in charger detection on the same plug and possible design errata regarding ID pin implementation (seems to me I ran across a discussion regarding this on this forum at the time.) No one I'm aware of has checked on a working device what voltage this pin has when on but not in host mode.

Good luck!
[Nexus 7 Q&A, Help & Troubleshooting] joesnose:
Hello,

I had this problem also. A multimeter confirmed no continuity between the usb port 5v and the ribbon connector. So I had to solder at the point where the micro usb port legs meet the ribbon circuit board. Alternatively the usb ribbon assembly can be purchased and easily replaced.
[Nexus 7 Q&A, Help & Troubleshooting] fmackay001:
I had this problem with my (2012) Nexus 7 - would charge only when switched off, wouldn't detect OEM or any other charger when on. However I later bought an Anker 40W 5-port charger (would add Amazon link but forum software won't let me) and it charges the Nexus as normal. As a cheapskate I previously purchased the near-identical but 40% cheaper 50W Swees charger instead but while it also charged the tablet it made a horrible whining noise while doing so, so I returned it as faulty, YMMV.
[Nexus 7 Q&A, Help & Troubleshooting] mo976:
So I'm having a similar problem with a N7(13) I am repairing for a family member. The USB doesn't seem to work even with the original charger(verified working) and is not recognized by computers. However wireless charging does work! So my question is if I'm ordering a new part is the USB port($7) enough or do I need the whole USB board($80) to repair it.
[Nexus 7 Q&A, Help & Troubleshooting] (^.^):
My nexus 7 (2013 LTE) can't charge with factory USB cable and charger since October.. It just happens, I've never emptied the battery before.. I thought the factory accessories failure, but then I tried HTC charger, no luck to get it charged..

But somehow I can charge it with xiaomi power bank, it's the only way to charge it..

Any solutions? Thanks.
[Nexus 7 Q&A, Help & Troubleshooting] dazadaza:
Hi!

A while ago my usbport went bad, had to apply pressure on it to get it to charge...

Left it for few months and now recently changed the usb port daughter board. ..

Now it only charges when off... not recognizing the charger when on and no pc connection working...

Original plug avaliable but not cable... Using a plug that is outputting 5V,2100mA and a cable from some other device, nexus phone i think...

It's a 1st gen device...

Reading this thread it sounds like a hw problem, something that has overloaded? No hope in flashing any other ROM or doing the lollipop upgrade?

Any advice would be appreciated :)
[Nexus 7 Q&A, Help & Troubleshooting] A1M918:
Hello everyone!

I am having the same issue with my N7 (2012) wifi+Gsm. but luckily I am able to charge my tablet using wall socket charger or through any usb cable. my problem is that it is not being detected by PC, even I tried different PCs , Different Usb cables, Different Usb ports but no positive results. I have checked the continuity from Micro UsB port to the other end of Ribbon cable (cable hidden underneath the battery) and everything is fine. I searched for pinout for usb host to directly connect USB, I found this YouTube video

watch?v=ngyBh0OZcpo

somewhere in same forum but the device is different than mine. I searched alot and tried every possible thing that I can do.

any help will be Appreciated :)

thanks :)
[Nexus 7 Q&A, Help & Troubleshooting] Platinum1986:
My Nexus 7 grouper 2012 wasn't recognized on my computer and the USB OTG cable didn't worked, so i bought this => https://fr.aliexpress.com/item/100-...-7-1st-Gen-Charger-Connector/32619250304.html

And now everything works great! it's not expensive at all so you could give it a try , hope it will fix your issue.
[Nexus 7 Q&A, Help & Troubleshooting] A1M918:
Thank you for the reply :) I really needed that.

I just wanted to ask that were you able to charge your Tablet before changing that usb-flex ?

My tablet is charging fine. but I have considered to change that part. I hope it will solve this issue ! :)
[Nexus 7 Q&A, Help & Troubleshooting] b0bba:
Hi, my old Nexus 7 2012 wont charge while turned on and is not recognized by my computer. I've replaced the original usb and headphone jack flex cable. But that didn't seam to resolve the problem of charging while turned on and the computer not recognizing it. It did how ever fix so that my OTG cable and thumb drive now works.

It will charge while the device is turned off. I don't care about the computer not recognizing the tablet but not being able to charge while the device is turned on is a pain.

I was looking around Youtube and found this clip watch?v=wXJNbPOQC-c maybe someone here on XDA knows if this works?
[Nexus 7 Q&A, Help & Troubleshooting] rgp95:
`my tablet, works charge and otg, but now is dead because i bricked the rom. Pc not recognize after crap car charger
[Nexus 7 Q&A, Help & Troubleshooting] yaro666:
same here, code 43 and not recognized. After changing usb cable and moving it in every directions I managed to flash stock ROM with nexus tool.

I believe USB port has to be replaced
[Nexus 7 Q&A, Help & Troubleshooting] LinuxAssailant:
The USB connector cannot be the problem if the device charges when powered off, just fine?

I am having this same issue on this tablet, and some weird issues on an Asus Memopad 7", and a Joyetech Cuboid that thinks it is charging when unplugged from power, I believe it is the Anker USB power adapter, model 71AN7111 that went wonkie, or shooting noisy power, but I do not know how to check this. This is the 3port*1Amp and 2port*2.4Amp version.

I have, on occasion, had to yank 110v from the back of the Anker to get her to chooch, but maybe I'll send this to BigClive as he might know, and be able to troubleshoot noisy power?

Charges fine when powered off, does not charge when fully booted.

I factoried the bits, thinking it was software, to no avail.

I have the tilapia version with Cell-data capability, running Cyanogenmod's 10.2.1-talapia, Official, I think, but I can't seem to get to cyanogen's site as of yesterday:

"Error

Over Quota

This application is temporarily over its serving quota. Please try again later. "

...on their site...
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] kratos313:
While using the stock web browser on multiple sites it frrezes and won't let me scroll or zoom but I can retype the web page, reload but upon reloadjng the page freezes up again while truing to scroll the page.

I know this cant be normal. My phone is stock. Ive turned off the air gesture and im still having the problem.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] daniel4653:
Have you tried a different browser ?
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] maxpower7:
I know it's all a matter of personal preference, but I've never understood why anyone would use the stock browser. It just feels clunky to me, particularly the tab switching interface.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Salil999:
I totally agree. I think Chrome is a great browsing experience on the device.

---------- Post added at 04:15 AM ---------- Previous post was at 04:14 AM ----------

You can try and clear the data/cache for the stock browser, that might be a fix.
[Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot] Badelhas:
OP, I have the EXACT same symptoms than you. And I also have them on Chrome. I am getting desperate, cleared data and cache and it didnt work. I actually prefer the stock browser because chrome makes my text in different sizes (this forum, for instance) and therefore harder to read, but not event chrome works.

Did you get to fix it? If so, how?

Thanks :)
[Verizon Samsung Galaxy S III] djteotancolis:
I have a problem with my Samsung device as the screen is starting to Flicker, the problem i have is the phone was replaced by Verizon In April under the Warranty program. i no longer have Verizon so i was wondering if Samsung will still Honor the Warranty as the replacement device is under warranty
[Samsung Galaxy Nexus] foosion:
According to http://www.google.com/insidesearch/features/myanswers/ "Ask Google for your flights, reservations, package delivery info, and more

We can instantly fetch this stuff for you if it’s in your Gmail, Google Calendar, Google+, or Google Drive"

For example, I put AA100 and Hilton in my Google Calendar. I ask "what's my flight status" and "where is my hotel". For flights, I get a generic link to flightstats.com. For hotel, I get something about there being an upcoming hotel stay in gmail, but no actual info on the stay in my calendar or whatever it's seeing in gmail.

Is google not looking at my calendar? How do I make this work?
[Samsung Galaxy Nexus] jsgraphicart:
For a flight/hotel status, I think you need to receive a email confirmation in Gmail for your purchase of the flight/hotel. Thats how package status works anyway. If you just put the event in your calendar, the only thing you can do is ask Google Now "what are my plans for (insert date)"? Then it will tell you the details you entered.
[Samsung Galaxy Nexus] foosion:
That's how it seems to work, but why do they say "We can instantly fetch this stuff for you if it’s in your Gmail,

Google Calendar

, Google+, or Google Drive"?

The announcement I linked reads as if they are expanding the list of places they look for the information.
[Verizon Samsung Galaxy S 4] joefrog1996:
So over night my S4 decided that it would corrupt my 32GB Sandisk SD. Second time its happened. Ever happen to you? What cards work best?
[Verizon Samsung Galaxy S 4] mwm523:
I had lots of issues with my Sandisk 64GB card. It would unmount itself several times a day, and sometimes would end up corrupted. I replaced it with a Samsung 64GB like 2 months ago, and I have not had a single issue since.
[Verizon Samsung Galaxy S 4] AliceBToklas:
And I had issues with the Samsung 64GB until I finally formatted on the phone itself. Since then it's been fine. It seems the SD card issues vary greatly from phone to phone and card to card. I can only offer my experience.
[Verizon Samsung Galaxy S 4] trud9340:
I've had issues with my SD card unmounting itself too. It seems to be random, and happens maybe once a week. It always comes back after a minute or so. I tried formatting it, but it didn't seem to alleviate the issue. My card is a 32gb sandisk class 4.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Sathub4u:
Hi Andro community frnds...My battery drains in 6 to 7 hours on normal use..Is tis normal in all Android devices..When i check my battery stats 70% is used by screen..Hw to miminise this..Hope we cant be using mobile with screen off:P I tried reducing brightness
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Bishal Pranto Roy:
its normal
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Aneel:
Reduce Brightness and reduce the Screen Wake up time i mean the backlight time and try avoiding to keep the phone screen turned on for a longer time... just use it generously you'll see a change within 7-8 hours i hope
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Clamiral:
change battery ?
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] a|\|droid_user:
phone and battery capacity ?

hi there :),which phone you are using and what is its mAh capacity..

I have a wt19i with 1200 mAh capacity..

and i lasts for a day with average usage...

check if you have any wakelocks...check your antivirus settings..and cpu times..maybe some background app is draining your battery..

regarding the display..yeah its a battery hogger..you can only reduce brightness and sleep time...

regards..
[HTC One X+] pepapol:
Hi, last December I bought an international One X+ at Vodafone Czech Republic (unbranded) and started playing with it immediately. After trying out several ROMs I decided that I was most satisfied with the stock version, only with root. Unfortunately I lost my original backup of the stock ROM so I used the link towards the stock RUUs in hasoon's toolkit. Then I was stupid enough to flash the newest European RUU I found without knowing which one I had originally: 1.17.401.1. I also flashed back the stock recovery since I believed that it will enable OTA updates in the future. Everything was fine until today when I wanted to update to 4.2.2 and encountered a problem - the update downloads successfully and the installation starts only to be interrupted approximately one third along the way and the phone reboots. Any ideas how to solve this?

Thanks a lot guys!
[HTC One X+] Addicted2xda:
You might try it a few times. If you are unable to download the OTA - it means you are good to go for OTA...
[One (M7) Q&A, Help & Troubleshooting] JonGarrett:
Hi all,

I love the calendar on my Note and I absolutely hate the calendar on the One.

Has anyone successfully ported calendars from other phones? More specifically the calendar from the Note/S4/S3?

I'm wondering if the Google edition S4 calendar would work on the One.
[One (M7) Q&A, Help & Troubleshooting] harlenm:
I'm sure there are tons of choices in the play store.

I would just try google calendar and see if you like that one.
[One (M7) Q&A, Help & Troubleshooting] garman76:
Try business calendar
[One (M7) Q&A, Help & Troubleshooting] zammboss:
+1 Google cal.
[One (M7) Q&A, Help & Troubleshooting] dmentzingen:
Best option

Best option is Digical you should give it a shot.

Fully customizable and nice widgets.
[One (M7) Q&A, Help & Troubleshooting] Prinz069:
Very simple is Smooth Calendar
[Samsung Galaxy Nexus] NYYFan325:
So after posting this: http://xdaforums.com/showthread.php?t=2399983

I decided a few days later to see what would happen if I added data roaming into the equation. I checked my sprint account and it showed ~380MB roaming data (12MB on sprint lol). Clearly not enough

I found myself a nice 1GB test file to download and was able to get it 3x the first night and 2x last night.

Woke up and go this text:

SprintFreeMsg: Please watch your mail for an important account notice. If your address has changed blah blah blah

I looked at my sprint account to see how much my roaming has went up and saw a much nicer 6.5GB! Not bad for 2 days of work!

I'm HOPING this is them parting ways with me, and I can finally go GSM (Nexus 4 probably).

Has anyone who has been terminated confirm this is the final straw or what?! :victory:
[Samsung Galaxy Nexus] jimmyco2008:
If they don't ETF you, I mean one thing is for certain, you're outta here!
[Samsung Galaxy Nexus] NYYFan325:
Well I know for a fact they can't ETF you if they are the one terminating the contract.

I honestly wouldn't even be in such a rush to get off Sprint but I cracked my screen and don't want to spend the $$ when I was planning on leaving Sprint when my contract is up in March 2014 anyway... sooner the better though lol
[Samsung Galaxy Nexus] jeremytn86:
They did me, got a call from collection agency from when it happened years ago a couple of weeks ago...
[Samsung Galaxy Nexus] bpyazel:
Well, if you broke whatever terms are in their contract and they terminate it, yeah they can charge you an ETF.