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Author Topic: Lost pc connection  (Read 3101 times)

Offline engineer

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Lost pc connection
« on: August 15, 2013, 06:55:26 AM »
Nexus 7 (2012) and windows 7 pc.

I used to USB connect the two and the nexus 7 would appear as a drive on the pc. I must have changed something (while trying to root my newer nexus 7.2) and now the nexus 7 no longer appears as a drive on the pc. When I usb connect the old nexus 7 it installs its drivers and connects but doesn't appear as a storage device.
I've switched usb debug setting both ways with no difference. Is there another setting I am forgetting about that I need to change for the nexus to appear as a drive on the pc?



Offline birdastrompgman

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Re: Lost pc connection
« Reply #1 on: August 15, 2013, 01:32:03 PM »
>Settings>Storage.   IIRC. there are MTP and PTP choices.  There's also a  USB connection type choice somewhere.  I'm not running the OEM ROM, so I can't look it up for you.
Bird has seen >650 North American bird species
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Offline engineer

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Re: Lost pc connection
« Reply #2 on: August 15, 2013, 07:37:50 PM »
Thank you.

I found the storage setting and mtp is selected.

I know there is another usb setting somewhere and could not find it anywhere which is why I asked. Maybe someone else knows where it is?

Offline S.Prime

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Re: Lost pc connection
« Reply #3 on: August 15, 2013, 08:11:30 PM »
Here you go,  give this a try.

http://forum.xda-developers.com/showthread.php?t=2390296



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Offline engineer

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Re: Lost pc connection
« Reply #4 on: August 16, 2013, 11:18:59 AM »
Worked like a charm. Thanks Prime.

I still have not been able to root my nexus 7.2 using Wugfresh toolkit and I think that is why it cannot find adb on either n7 or n7.2 . Whenever I load Wugfresh drivers I lose the ability to access the nexus and need to use the method you recommended to regain access. The Wugfresh toolkit obviously works for most users but when it doesn't I think it is because the computer can no longer access the nexus 7 and gives the error about not finding adb drivers.

Is there a manual way I can root my new nexus 7.2?

Is there an expert on rooting in northern Virginia I can physically go to in person? A nexus or android users group?

Really frustrated at the amount of wasted time.

Offline S.Prime

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Re: Lost pc connection
« Reply #5 on: August 16, 2013, 11:25:27 AM »
I suggest waiting on Mark Skippen's toolkit, it does a better job with adb driver installation. I will advise everyone when it is available.

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Offline dominic

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Re: Lost pc connection
« Reply #6 on: August 16, 2013, 11:32:23 AM »
I am in Northern VA and will be happy to help
However, being a newbie I used Wugfresh to root my N7
I am in a same boat like you that I can not access my N7 through PC
This happened AFTER I upgraded to 4.2.2 and still no access with 4.3
I tried everything that I read here and on XDA and no luck so far
So if you want to take the chance after rooting and lose access to PC, it's your call
If you only want to access your files, movies etc...from your flash drive using OTG cable. You can use Nexus Media Importer from google play without having to root your N7

I wonder if anyone have access to PC after rooting in 4.3

Offline engineer

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Re: Lost pc connection
« Reply #7 on: August 16, 2013, 01:55:49 PM »
Hi Dominic, we talked last year when I finally rooted my older nexus 7. By the time we talked I had figured out the problem and rooted. (Wish I could remember how!) The trouble I'm having now is rooting the new nexus 7.2 (2013).

Accessing the nexus from the pc is no longer a problem. The link Prime provided works great. The only reason I brought it up was to wonder if maybe that was why Wugfresh toolkit could not find adb to link to my new nexus.

For rooting help, we both need a real expert to  help us. I need root because many of my important apps won't work fully without it: firewalls, Titanium b/u, nandroid b/u, Stickmount, Rom toolbox utilities, Tasker, lbe security, etc. So I've got to root.

Thanks for offering.

Offline S.Prime

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Re: Lost pc connection
« Reply #8 on: August 16, 2013, 01:58:03 PM »
I honestly have not tired MTP since 4.3, but I will test it on both of my Nexus 7's.

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« Last Edit: August 16, 2013, 02:11:29 PM by S.Prime »
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Offline S.Prime

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Re: Lost pc connection
« Reply #9 on: August 16, 2013, 02:41:56 PM »
I suspect that the adb command may not be in your path. To test it connect your Nexus 7 to your computer and make sure usb debugging is turned on in the tablet settings. Next open a command prompt and type "adb devices"  without the quotes and press enter. If you are given the serial number of your tablet then adb is installed in the path of your computer and is working. If not find where adb is installed and run the above command from there. Then report your results and it should indicate your problem.

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Offline engineer

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Re: Lost pc connection
« Reply #10 on: August 16, 2013, 03:22:44 PM »
Hurray, hurray, hurray!
Dominic, you always bring me luck! No sooner do you offer to help than I get rooted.

The Wugfresh toolkit is wonderful - once the adb was found - everything else went like clockwork. Like magic.

I used the latest version of Wugfresh (updated today) and here is what I did differently. I'm writing this so I can remember for the next time and in case it helps someone else.

1. I disabled windows automatic device install
2. I used the Samsung drivers. I had used them before but this time all came together.
3. I noticed that in addition to usb debug that the instructions said to unselect mtp in the usb setting. (it was selected so I unselected it) First time I saw this and maybe that was it?

I could not believe it when the toolkit said it found the adb and was connected!

After that everything was as smooth as butter. Everything followed perfectly and I'm rooted. Wow!

Donation on its way to Wugfresh. Who is he anyway? One person or a team. Terrific job (once I got past the driver Installation. Thank you all who helped.

Offline birdastrompgman

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Re: Lost pc connection
« Reply #11 on: August 16, 2013, 03:27:44 PM »
Here's how I manually rooted my Nexus 7 (2012) after upgrading to Android 4.3.  I used Mark Skippen's Google Nexus 7 Toolkit to push the busybox binaries after rooting.  Mark recently moved, and his ISP failed him, but we're hoping he updates his toolkits soon.

FWIW, MTP is seriously sketchy (both before and after the 4.3 upgrade).  ADB push/pulls are also problematic.  I got my best results transferring files to a USB flash drive as the intermediary between my N7 and Win 7 PC.
Bird has seen >650 North American bird species
Rooted Nexus 7
49.5 mpg avg for 53k miles in non-hybrid Scion xB
Retired 9 yrs, and loving it

Offline bjs229

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Re: Lost pc connection
« Reply #12 on: August 16, 2013, 05:03:37 PM »
I used Wugfresh to root my new Nexus a couple nights ago.  I used a Windows 8 laptop. It went smoothly. I had been using Wugs on my old xp box but couldn't get it to work this time. Adb kept reinstalling.. The pc won't show my nexus or files unless debugging is turned on.  Is that odd?

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Offline dominic

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Re: Lost pc connection
« Reply #13 on: August 16, 2013, 06:56:45 PM »
Engineer
After rooted, are you able to connect to your PC ?

Offline S.Prime

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Re: Lost pc connection
« Reply #14 on: August 17, 2013, 06:06:16 AM »
I  verified that I could connect by MTP to my Windows 7 64 bit PC with my 2012 and 2013 Nexus tablets both running Android 4.3.

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