I think there is some problem in ur device driver .uninstall & re install the driver,or contact ur vendor such as windows, mobile device vendor. On Oct 13, 2013 6:47 AM, "Lee" <[email protected]> wrote:
> I have a new problem with my Android development environment. In it's > simplest form, I have a Windows 7 PC and a stock unrooted Nexus 4. I have > been developing via this environment for at least six months. I'm using > the ADT bundle. I've on R 22.2.1 SDK tools. My ADB is 1.0.31. Basically, > from what I can tell, I've got the latest everything, except not the latest > Android Studio stuff. I'm primarily work with my Nexus 4, but every once > and a while, I try it out on a Nexus One and a Nexus 7. > > This environment has been working well form me for at least the last six > months. On Thursday 10/10/13, I installed all this months Microsoft patch > Tuesday updates. My system was working fine on Wednesday, I installed the > updates on Thursday. On Friday, I got back to work and was not able to > connect adb to my Nexus 4. > > Obviously I have looked online for a solution. The thing that is actually > surprising me here is that I fully expected other people to have this same > problem. But I haven't seen a single sign that anyone else is encountering > this problem. There are tons and tons and tons of people having problems > with adb over the years, but that's all old stuff with old well known > solutions. > > I've tried so many combinations of things. Reboots. Different USB > cables. Different USB ports. Different PC drivers. I've fully > uninstalled the Google USB drivers and reinstalled them. > > When I attempt to turn debugging on in my N4, I first turn developer > options on, then I enable USB debugging. I hear the PC beep indicating > that it needs to do some driver stuff. From what I can tell, that is all > working. When I run the old 'adb devices', I get the serial number of the > N4 followed by "unauthorized". On the device, the authorize dialog never > appears. I used to have this PC set as remembered by the device. I've tried > the "Revoke USB debugging authorizations" many times. > > I have tried every combination of enabling developer options, MTP vs PTP > modes, and setting these before and after the device is physically > connected to the computer. > > Here are a few key this works and that doesn't work facts. My primary PC > is Windows 7. ADB will work with my Nexus One. It will not work with my > Nexus 4 and Nexus 7 (both are running stock unrooted 4.3). This makes me > think the problem is in the authorization part of things vs a basic > connectivity thing. > > I have access to a Vista machine. I applied all the Microsoft patches for > this month to that Vista machine, and it does not have this problem. Vista > fine, Windows 7 not fine. > > fastboot is able to communicate with the N4. > > I was going to roll back the Microsoft updates, but I do not have a system > restore point old enough available. > > I'm open to trying anything I've already tried over again, but I really > think this is a new problem. Although, since I'm the only one who seems to > have this, who knows. > > I am completely making this up. It's like adb doesn't know who the PC is > anymore, but doesn't know it doesn't know, so when it sends the 'do you > authorize me' command to the N4, it's sending an invalid fingerprint, and > the N4 silently ignores it. > > Anyway, thank you for any help. Lee > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Android Developers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
