yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Q&A, Help & Troubleshooting] Fedka the Convict:
I just experienced the problem of my laptop not recognizing that my Nexus 7 is connected for the first time and the top result of a Google search for a solution brought me to this thread.

I have a rooted, unlocked Nexus 7 which has worked without problems for the last two weeks. When I attempted to connect it a few minutes ago I can distinctly hear the "ding" as it connects but it never shows up in Windows Explorer as a connected device. Then I remembered that I installed Titanium Backup yesterday and when I initially ran the app it warned me that it might not function correctly because I had USB debugging mode enabled (and another issue I can't recall right now). Anyway, I disabled USB debugging to avoid any possible problems.

When my laptop did not recognize the tablet I re-enabled USB debugging and it worked right away. So my suggestion it to try toggling USB Debugging on and off and see if that helps your computer recognize your tablet.
[Nexus 7 Q&A, Help & Troubleshooting] HPD user:
I have been having this same exact issue, and unfortunately it decided to happen right after I accidentally bricked the N7. so now I can get to fastboot but that is useless when I cant get a pc to communicate with the device to fix the problem. My CWM recovery was wiped and as far as I can tell usb debugging isnt even a valid topic in this scenario since the device currently has no rom, so Im super screwed.
[Nexus 7 Q&A, Help & Troubleshooting] rlanza1054:
Sort of the same problem, but my question surrounds around the 'Hidden Developer settings'. I just noticed that.

So is there a way to access it now? I'm on a unroot stock 4.2 or whatever the latest version is from the other day that I upgraded?

Thanks!

Rob
[Nexus 7 Q&A, Help & Troubleshooting] kevchaps:
Settings-about tablet-on "build number" tap a bunch of times.
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
Still haven't got it to work. Has anyone found a fix that is not "return to seller"?
[Nexus 7 Q&A, Help & Troubleshooting] peterk-1:
I haven't read the full thread so sorry if this is known

This

MAY

be the issue. A friends nexus 7 wouldn't connect to my netbook. The USB device connection is driven by wpdmtp.inf (I think) and in that file are lines containg Vendor ID and Product ID. My device worked and the file had VID=18D1 PID=4E41 and the new nexus 7 had the same vendor ID but had a PID of 4E42. and was not recognised as a storage device.

So it may be worth finding all inf files and checking them . this could be the reason why people say that drivers should be removed from disk prior to update
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
I think the problem is within the Nexus. I have connected it to three machines, one which had never had the Nexus connected to it. Most of the times, it is not even detected as a device at all in Windows, the other times just an unknown usb device. It do start charging instantly however, all the times.
[Nexus 7 Q&A, Help & Troubleshooting] Mnorton1228:
Joined just to make a comment because mine is now doing this as well. I have a battery pack that I charged the tablet with earlier today and upon coming home with it tried to connect it to my PC and was unable to get any type of connection. Im using AirDroid as a work around right now and it is still charging even though I am getting no notification that it is actually charging. Going to try to go to a nandroid backup to see if maybe that can reset something but judging from the posts its not looking like that it will fix anything. Really kind of depressing if this is in fact something that can only be fixed by an RMA.

Ive tried all the ways of fixing it. Ive toggled MTP and PTP, Debugging, Uninstalled/Installed Drivers, Tried plugging into my Windows 8 laptop, etc etc and still nothing. Would love it if someone could figure out a sure fire way to fix it.
[Nexus 7 Q&A, Help & Troubleshooting] rlanza1054:
I attempted several times to use the Thank you button for Kevchaps, but after I tried to apply it, a second later, its saying 'post action denied'.

I'm not sure why I'm unable to achieve the Thank you posting.

Thank you!

Rob
[Nexus 7 Q&A, Help & Troubleshooting] kevchaps:
My pleasure
[Nexus 7 Q&A, Help & Troubleshooting] rangykoo:
Mine always connects to any win7 pc as a portable media device.
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
Wow, after the latest OTA 4.2.1 it now works again! Updated, rebooted, connected to PC and there it is, my long lost little friend! :)
[Nexus 7 Q&A, Help & Troubleshooting] hjohnson90:
This was happening to me too after the update to Jellybean 4.2 and it looks like it was a driver issue because the computer recognized that my Nexus 7 was plugged in but I could not access it. I had to go to the device manager and reinstall the drivers to get it up and running again. Here are the steps of how I got it working again.

Steps:

1. Plug in your Nexus 7 with the USB cable

2. In the start menu search for "device manager" and select it

3. Find "Nexus 7" (mine was under the "Portable Devices" section)

4. Right click "Nexus 7" and select uninstall

5. Unplug your Nexus from the computer and plug it back in

6. The device should reinstall the drivers and show up on your computer again

*all of this was done when my nexus was in MTP mode

And if the reason for wanting to get your N7 to connect up to your computer was to transfer files or get into the memory for one reason or another, you can do it over wifi. There is a free app called AirDroid that you can download in google play and then you can connect to your device over your wifi network.
[Nexus 7 Q&A, Help & Troubleshooting] Watoh:
Cant get mine talking to my PC in MTP mode. Tried everything. Working fine in PTP. I even took it back to the shop and got a replacement.. the replacement had the same issue.

Pretty annoyed and not sure what to do. Using Airdroid or USB stick for now, but it is not ideal.
[Nexus 7 Q&A, Help & Troubleshooting] rcarsalan:
Good to know it finally worked for you.. Same thing was happening with me since android 4.1 . I had a xp notebook .. The only thing that was required was latest windows media player with mtp. Now it works fine :)
[Nexus 7 Q&A, Help & Troubleshooting] MetalMan2:
Yesterday I noticed my car charger was no longer powering up (making my Nexus 7 car setup a bit useless) and so I pulled my N7 into the house and plugged in USB to my PC... now I'm having this same problem. Device manager shows no indication that the N7 is being detected; have tried toggling all settings, going from 4.2.1 to a 4.1.2 nandroid backup, deleted all relevant drivers and reinstalled them (Samsung driver package), etc.

My N7 charges via the PC USB (shows USB charging). It charges with the AC adapter (shows AC charging). OTG works just fine, and with the appropriate kernel, OTG + charge (simultaneous) works fine.

Flashing any ROM/kernel won't fix it, and based on responses in this thread it won't be worth my time to try flashing a different bootloader.

So unless I'm missing something, that seems to just leave hardware :crying: it wouldn't bother me if I just needed to transfer files, but this means that ADB and fastboot no longer work. Just the day before I flashed an IMG file via fastboot, and now it looks like to do that I'll have to get fancy with learning how to add an IMG file to a ZIP file to be flashed in Recovery.
[Nexus 7 Q&A, Help & Troubleshooting] Deadliftr:
Nexus 7 unrecognized until cable swap

I had the same problem with my pc not recognizing the Nexus 7. There was absolutely no hint that it was connected: no sound notification, no icon, and nothing in Device Manager. I am a bit ashamed that I spent over 14 hours on this problem :crying:

Win 7 Pro 64 bit

Intel Quad Core 6700

8gb Ram

I tried many things including reinstalling Win Media Player.

Finally, I replaced the convenient usb cable sticking out of my monitor with the stock cable that came with the Nexus 7.

Walla! :D It was immediately recognized. This may work for some of you. The stock cable is really flimsy so I preferred the many usb cables I have lying around. Apparently there is something about the pin settings in the original that make for data connection.

Check it out.
[Nexus 7 Q&A, Help & Troubleshooting] Anubis14:
Stock cable made no difference for me. Or 4.1.2,or custom rom. Nothing.
[Nexus 7 Q&A, Help & Troubleshooting] MetalMan2:
You definitely got lucky with that. I've tried multiple cables, multiple USB ports, etc.
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
Damn, it has stopped working again! Have tried using many cables and computers. I have two more Nexus 7 that work just fine, although just stock without unlocked boot loader.

Back to square one again :(
[Nexus 7 Q&A, Help & Troubleshooting] cearap01:
This fix worked perfectly for me ...
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
Problem is that nothing happens in windows at all when plugging it in. No matter what computer I use, and no matter what usb cable I use. It starts charging instantly so there is connection. And, with the two other Nexus 7 I have, everything works.

Works sometimes, then there are long periods when it won't work at all.
[Nexus 7 Q&A, Help & Troubleshooting] succeedatsomething:
Fix

Within andriod 4.2 you must start debugging mode and to do that you must have developer options and to activate that if you dont already have it, you must go to Settings, About Tablet, tap on Build Number JOP40D about 7 times. Its will give you developer options in the system settings, Tap Developer options, then USB Debugging

AT FIRST I THOUGHT IT WAS BS BUT I TRIED IT. NOW I CAN OPEN MY FILES ON MY NEXUS & WITH MY PC
[Nexus 7 Q&A, Help & Troubleshooting] tndave:
I'm having the same problem. I've charged my nexus 7 with a car charger, and now I can't get it recognized on a computer. I've tried two different PCs and a Mac. I've tried hard reset and wiping everything clean on the nexus 7. I've tried all the steps with uninstalling the drivers but I cannot get them reinstalled and I can't even get my PC to acknowledge that there's even a nexus 7 plugged into it! I do, as with most people in this thread have the charging icon when it is plugged in. I've tried to find a way to flash it back to stock in case I need to send it back but I can't even seem to be able todo that without having it connect with the PC! I've been searching for hours and hours over the course of a few days, I apologize if I've missed the solution somewhere obvious. I'd absolutely love any assistance with this!! I'm at a loss
[Nexus 7 Q&A, Help & Troubleshooting] muki_za:
Has anyone found a solution to this problem besides sending it back? Which is unfortunately not an option for me
[Nexus 7 Q&A, Help & Troubleshooting] perthtrev:
I found that updating Windows Media Player worked for me when I was having the same problem. I had previously been able to get the computer to recognise my Nexus but after replacing my hard drive it wouldn't. Updated Media Player and worked again.
[Nexus 7 Q&A, Help & Troubleshooting] ArRaY92:
There seem to be two different Issues here. The first is trouble with drivers and PC sided recognition. Which is not what this thread is about.

The second and REAL problem here is, that for us, the nexus charges on connection, but thats it. Neither PC nor Nexus acknowledge the connection in any way. Does anybody find a solution or is the device fried? I remember charging my Nex7 in a friends car for about 5mins...

I really dont want to RMA it, I had 2 devices with dusty screens before... Did anyone not have to RMA his unit with this problem?
[Nexus 7 Q&A, Help & Troubleshooting] perthtrev:
As l said above, that is what was happening to me,charge but not recognize, updated Media Player and it recognised my N7
[Nexus 7 Q&A, Help & Troubleshooting] calavera-pw:
Hey guys, I might have a solution. It just involved uninstalling the drivers completely then just plugging your N7 in. Windows will automatically download necessary drivers and it is recognized again.

I used Nexus Root Toolkit. Launch program (it will ask to download stuff but for this case you can skip them by clicking cancel) and under 'Initial Setup' click on 'Full driver Installation Guide + Manual". Then just follow step 1. Reboot and plug in your N7 and windows should take care of the rest.

Try disabling debugging mode before you plug in after rebooting your PC if it doesn't show. HTH
[Nexus 7 Q&A, Help & Troubleshooting] ArRaY92:
Updating the Media Player? I cant. I run the most up to date Win8. Doesn't work on my other Win7 Notebook or my Desktop either. As I said, there isn't even an unknown device in the Device manager, toggling Debug mode or PTP has no effect.

So, your Nexus 7 charged upon USB connection, but did not show the USB debugging icon, even though it was enabled? If yes, that is what the real problem in this thread is about. I can't uninstall any drivers, because I never installed anything on my Win8 PC and it worked..

I bet its fried. Could anyone please post a dmesg and a logcat that shows a successful connection via mtp to Win7?

Please clear out your buffers with the -c switch in both cases. Thanks in advance.
[Nexus 7 Q&A, Help & Troubleshooting] ArRaY92:
Anybody, please? This is a really pressing issue for me. I already cleaned the USB port with contact cleaner and ensured everything else works well... Pretty sad ATM, I really really dont want do deal with google/asus RMA again... and get another faulty unit out of the box. So far my N7 has been flawless, no dust, perfect screen... I dont want to give it back and rather make sure that RMA is the only cure for this fault.
[Nexus 7 Q&A, Help & Troubleshooting] WhatAmI:
Had same N7 USB problem using an existing SG2 usb cable - 2 different PCs running W7x64 and W2008R2 x64 - nothing happened.

My son said had problem charging with 2 different cables as there was a bad fit - so after reading all above I tried the original N7 usb cable that comes with the charger - voila - now works on both PCs - try other cable - does not work.

This is starting to sound like it's a connector problem on the N7 - especially when others said they used another charger and it stopped working.
[Nexus 7 Q&A, Help & Troubleshooting] coolqf:
I had the same problem. It was fixed by installing the drivers directly installing from the Asus website.
[Nexus 7 Q&A, Help & Troubleshooting] Infernal Satan:
I tried this over and over already, I also tried PDAnet and Android SDK drivers as well

No luck
[Nexus 7 Q&A, Help & Troubleshooting] coolqf:
Have you tried it on another computer? I had this happen to me a lot with dell computers.
[Nexus 7 Q&A, Help & Troubleshooting] ArRaY92:
If it fails on multiple computers and with multiple cables, if there isnt even an unknown device in your task manager and neither logact nor dmesg show usb connection information, then dont bother messing with drivers, because that is not your problem. If anybody has the same problem as OP, me and some others, there is no driver related fix, your device is fried. RMA it, that is your only option.
[Nexus 7 Q&A, Help & Troubleshooting] nick2418:
I'm having similar issues to some of you guys. a lot of people are talking about different issues though

After i charged my n7 in my car i was unable to connect it to any microusb. its not recognized by any computer and won't show a usb connection or even charge. also it won't charge even with a wall outlet. the only way i can charge it is when it is powered off. i've tried a factory reset.

i'm not even sure if i want to send it to asus cause i can't even lock the bootloader (lacking ability to connect to a computer) because since it my warranty is void i will be charged probably more than i paid for it

ideas PLEASE???
[Nexus 7 Q&A, Help & Troubleshooting] tubbocks:
Gah, now my touchscreen is partially borked I'm in doubly bad situation - I too can't revert to factory settings, and I don't want to pay Asus pretty much the same I bought it for to get it refurbed. I'm thinking I'm going to stick Ubuntu on it and just use ssh and cron etc to use it as a low power server to do regular website backups. Nearly time to upgrade my phone - reckon I'll get a Note II and just say "bye bye Nexus 7" :(
[Nexus 7 Q&A, Help & Troubleshooting] limehouse20:
Having problems too and this is really getting into my nerves!! Really annoying! And the only solution I could think of is buying an iPad mini and sell this ****e! I love Mantano Reader over iBooks, but damn this is so un-user friendly and useless customer support from Asus!! :(
[Nexus 7 Q&A, Help & Troubleshooting] merksmmx:
you can also try going to your to Settings>Developer options and make sure "Android Debugging" is checked. that fixed it for me instantly.
[Nexus 7 Q&A, Help & Troubleshooting] Groid:
I picked up the end of a cable connected to the back of my pc to attach it to my N7 and created static shock to the end of the connector on the cable. I can no longer use that bank of 4 usb ports to make a connection to the pc. The ports still work with my mouse receiver, printer connection, etc., but no longer will my phone or N7 recognize the pc when connected to any of those ports. All the other ports on my pc work with the phone or N7. Beware static electricity.
[Nexus 7 Q&A, Help & Troubleshooting] ArRaY92:
Everybody please disregard the posts about usb debugging, drivers or else. If you are sure it is not recognized, or you viewed logcat or dmesg, RMA it. It is broken. I got this confirmed by play support.
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
I have unlocked bootloader and rooted it. Lost root while upgrading to 4.2, but the unlocked bootloader should remain, right? Can I still RMA it? Since I can't connect it to USB I can't restore factory image.
[Nexus 7 Q&A, Help & Troubleshooting] MetalMan2:
I too am curious what the ramifications are with an unlocked bootloader. Also, generally what is the cost to have this repaired?
[Nexus 7 Q&A, Help & Troubleshooting] Cadabena:
I RMAed mine in the same state and got a replacement in less than a week no problem. Not heard of people's devices being refused, I guess if they have it there already it's less hassle just to send you a new device and be done.
[Nexus 7 Q&A, Help & Troubleshooting] tekkyn00b:
Non-rooted N7 here. Uninstalling drivers, unplug / plug worked for me.
[Nexus 7 Q&A, Help & Troubleshooting] malin:
To where did you RMA your device: to asus or google ? I am in the country where Nexus7 is still not sold by Google , and mine device comes from USA. I am wondering if I can RMA it in DE or UK ? maybe someone have expiriences ?
[Nexus 7 Q&A, Help & Troubleshooting] copota:
I have a Nexus 7 16Gb C70K model. Been using it off and on for about 6 months without any issues.

Now, mine too, no longer is recognized by my Win7 PC. Absolutely nothing appears in either Device Manager or in the My Computer section. Apparently something happened whereby it just ceased to output a signal upon connection with a PC.

I've tried everything. Factory reset, different cables, different PC's, unplugging the battery for a few hours, unplugging the USB Ribbon. Nothing resolved the problem.

Currently I'm RMA'ing my Nexus 7 back to Google, which was purchased via the Google Play Store.

I can't confirm exactly when this problem started, though I do believe it may have started after I tested a Motorola Car Charger on my Nexus 7. I also use third party wall chargers designed originally for HP Tablets. Now I'm worried about using any third party charger with a Nexus 7. Though, I'll continue to use the HP Wall Charger. I will not be using the Motorola Car Charger again, as I think that was the culprit.
[Nexus 7 Q&A, Help & Troubleshooting] ganovim:
Same here.. replaced the system (4.1.2) adb debugging etc works only in PTP mode. I don't think it's the hardware, since adb kicks in when in recovery.
[Nexus 7 Q&A, Help & Troubleshooting] toddf2p:
My N7 will not show up as a portable device until the screen turns off.
[Nexus 7 Q&A, Help & Troubleshooting] alex_j92:
I have the exact same problems i used this car charger :

Dual USB 3.1A Mini Car Charger for iPhone/iPod/iPad 1/iPad 2/The New iPad 3rd (Black) "Amazon FR "

For me I confirm this problem started after I connected car charger. it load for 1 hour after nothing.

I have no more usb detection,and no charge, otg cable work with my keyboard.

and now for charging my nexus i need to shutdown.

Sorry for my english.;)
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
Updating to 4.2.2 did not fix this problem. It charges via usb but that is all.
[Nexus 7 Q&A, Help & Troubleshooting] copota:
I received my replacement from Google, which works well, and is detected via USB.

I originally bought mine used on Ebay (CK70 model). I had no idea where mine was originally purchased, so I took a chance, and contacted Google Play Support via phone, told them I got mine as a gift, therefore I had no order number or receipt. They took my serial number, and told me I was eligible for a warranty replacement. I guess I lucked out.

My replacement model was a brand new unit, manufactured in December/2012. It actually has much better speakers than my CK70 model.

I wont be using a car charger on this unit.
[Nexus 7 Q&A, Help & Troubleshooting] block306:
Cannot see Nexus 7

I have the same problem of trying to connect 7 transfer files to Nexus 7 on my Win7 Ultimate 64-bit.

I managed to download drivers from Asus (http://support.asus.com/download.as...us 7&p=28&s=2&os=32&hashedid=WzTziL1xapnpDNwF) and unclicking "usb debugging", I could see nexus 7 being part of my pc.

What I meant is that I could "safely remove and eject device" being nexus 7 and when I go to "Devices and Printers", nexus 7 is listed under unspecified. However I could not see it anywhere- not using my file explorer or anything.

Anyone have any ideas? Thanks.

EDIT: under Device Manager, it is listed as Android Phone with Android ADB Interface.
[Nexus 7 Q&A, Help & Troubleshooting] coverdriven:
Got it working after some hassle

I had this problem for all of yesterday, but seem to have it mostly resolved.

I have two Nexus7 devices.

The earlier device is about 6 months old and used to connect over MTP without a problem. I do note that the driver is indicated as "Android ADB Interface" when connected.

The new Nexus7 (running 4.2.2)refused to connect over MTP (but would work with PTP) on that same PC. When connected, the driver is indicated is "Android Composite ADB Interface".

The only way I could get the PC to recognise the new Nexus7 was to delete all the drivers (not just un-install, but delete) and then to install the newer one first. Interestingly, the Devices and Printers page now labels the Nexus7 as MTP.

I wonder if the problem was related to an earlier Asus device being connected to the PC, and lingering drivers causing an incompatibility.
[Nexus 7 Q&A, Help & Troubleshooting] block306:
How do you delete the drivers? I trid but it said I need Trustedinstaller permission.

Thanks.
[Nexus 7 Q&A, Help & Troubleshooting] drgonzo1972a:
PC linking to Nexus 7 issue

I have also been suffering from the same problem of getting my PC to recognize my Nexus 7 & at least for my case, I solved the problem. I have 5 micro USB chords, which all will charge my Nexus, but only one will allow both my desktop and laptop computer to recognize my Nexus as a disk drive. Apparently the pin placements for these chords are not exactly the same. Hope this helps some of you
[Nexus 7 Q&A, Help & Troubleshooting] redviper52:
Back to ASUS

I just got my set on Saturday and it started not charging up and not recognized by any of my computers - desktop, notebooks, macbook and imac... So off to Asus and a 5 day wait! Disappointing. I'd probably sell if off!

K
[Nexus 7 Q&A, Help & Troubleshooting] moonroy:
Can it be heat-related somehow? If I have had it idle for some hours and then plug it in, I might have some luck to at least have some reaction although windows can't recognise it. A couple of minutes later it is no reaction what so ever.