After a) growing tired of the slowness of the emulator and b) nearing the end of the development of my first android app, I decided to connect my old and forgotten Toshiba Folio 100 android 2.2 tablet to my Windows 7 development PC, in order to deploy my android app. The PC and tablet 'see' each other, that is, the PC sees the tablet as a disk drive. In the android settings I switched on the developer mode. I read through the many advice threads of this site concerning deploying the app to a real device. To start with, in windows explorer, computer, right click, manage, does not result in recognition of the tablet, except for Toshiba storage USB device.
In Eclipse I went to Run configurations, target tab,tried all the different radio buttons settings, to no avail. The devices view, same story. Eclipse does not see the tablet. I also tried some old Archos 48 mini tablet, again nothing.
What can I do?
Thanks in advance.
do you see it as an android device? open a command prompt and type "adb devices" make sure your tablet is listed there, otherwise you need to find some adb drivers for it, you may want to try the generic adb usb driver.
If you're seeing the device in explorer listed as a disk drive it probably means you have the wrong USB mode on the device. It's called different things on different devices, but on many devices it's referred to as "Charge Only" mode (or not mass storage mode). Also make sure USB debugging is enabled on the device.
Related
Yesterday my PC (Windows 8.1) performed an automatic update and now my android devices (a Samsung s4 mini and Samsung Note 8.0 tablet) are not being recognized by Android Studio or Windows in general when plugged in via USB. I have tried the devices on other PCs as they work as normal.
When I plug the devices into the computer I see a charging icon on the phone but no notification of USB connection and no option for selecting between camera and MTP device. The devices also do not appear in Device Manager (not even as unknown devices) or as storage drives in explorer. I attempted to do a system restore but the restore point failed when I tried to launch it and then deleted itself. Re-opening the restore tool now shows that there are no restore points and that the memory allocation for restore points had suddenly been set to zero (perhaps I have a virus).
The USB ports work for other devices, such as USB drives. I have tried plugging the Android devices into a variety of ports with no success. I have also tried different cables. I use the devices for development, so USB debugging is switched on.
Is there any sort of process that is typically launched by Windows that allows an Android device to be recognized? I am trying to understand what may have happened here and how to fix it. Google searches are turning up nothing without being able to see the devices in Device Manager.
Many Thanks
Unbelievably, I tried a fourth USB cable and connectivity is back. I didn't realize there could be so much variation in a cable.
I need to know how to make Windows 7 forget it ever connected to my LG G Stylo phone. I have three devices that I use in Android Studio development. For some reason, this one is no longer being detected by the ADB. Something has happened to make it no longer show up, because it did a couple of weeks ago.
AS's ADB will detect my other two devices, and this device shows up in the in the ADB on another computer. I have tediously gone through the registry and removed everything referencing the Stylo, but it still will not show up in AS's ADB.
Thanks for the help!
John
To start, I have just purchased the LG Stylo 3 plus and ran right into this situation. TO repeat the basics you need
With Android Studio shut down...
Turn on Developer options (tap 7 times on build number in settings
(Settings>System>About Phone>Build Number
Turn on USB Debugging in Developer Options
(optionally) check on the type of USB connection, MTP or PTP should
work
(Optionally) Because I did it, also do a revoke USB tap.
Here was the key for me. I needed to install the LG USB Windows Drivers for my Windows 7 (I'll try 10 tonight and update). Go to this page
LG Drivers and firmware
and either type in model number or browse to find device. LG has a nice interface to install the Windows Drivers. I recommend the Support tool to verify the device as the up to date drivers as well. Start Android Studio and to test I just started the app in debug mode and went through the process of setting up ADB for using the new;y connected device.
Developer options" has to be ON in order to make AS see the device
If even though device manager you can't saw the device, Windows couldn't find drivers.Maybe the drivers are hidden on the device otherwise download it and install it.
If that doesn't work:
Shut down
Hit F8 (or whatever gets to startup options screen on your computer)
Disable Driver Signature Enforcement.
Run driver
I hope someone can help me.I could connect my windows 7 machine and Eclipse successfully to my nexus 7. I lost my tablet and I bought the new one but now my windows machine can't even recognize it as external device neither my Eclipse works with it anymore. Does windows 7 keeps USB ID somewhere? Should I re install something?I appreciate your help.
Be sure that you have USB Debugging enabled.
Open up Device Manager. Do you see a tab for ADB Devices? Do you see your N7 anywhere on the list?
If not, on your tablet, go in and change the PC Connection mode to whichever one it is not on. And then try again.
I have had problems with my N7 as well where it will only connect when set to a certain connection type.
I have found that if Eclipse is not installed on the computer, the computer is able to see multiple Nexus 7 tablets as MTP devices. However, for computers that have Eclipse installed on them they can only see the first Nexus 7 tablet connected to them as an MTP device. All other tablets connected to the computer are seen as an unspecified device. It seems like Eclipse is storing a unique identifier from the first tablet associated with it. The only way I can get apps built in Eclipse onto my other Nexus 7 tablets is to change the usb connection to PTP (not MTP) and then my windows 7 computer sees my tablet as a camera and I can move the .apk file over to the tablet. Is this how it's suppose to work?
I've started developing for android. I'm using different computers with different operating systems. (A Windows desktop PC and a Macintosh at home and a Windows Notebook at work)
Most of the time I am using my desktop pc for development but since yesterday my Nexus 4 is displayed as offline in the Eclipse ADT Devices view. This problem only occurs on my desktop pc. On the other computers I don't have any problems getting the device online in eclipse.
I already tried a lot of things like:
- unplugging/plugging the nexus 4
- switching off/on usb debugging
- restarting computer, nexus 4 and the adb server
- reinstalling nexus 4 usb drivers (I'm using the Android Composite ADB Interface Drivers from the Android SDK)
I was about to give up but then I remembered something. After connecting the nexus via usb the "Allow USB debugging" dialog shows up and on my desktop pc I checked the "Always allow from this computer" option.
My hope is that disabling this "Always Allow"-permission could help to get my device back online. I already searched in the developer options to find a way to reset the "Always Allow" permission without success. Maybe it is possible to reset the permission by clearing the data of the App/Service (Settings->Apps(All)) which stores this information but I didn't find the name of it in Google.
So does anyone know the name of the App/Service whose data has to be cleared to reset the permission? Or is there another way to get the device back online that I have not tought of?
You can use your device with multiple computers with that enabled as well. I can use my Nexus 7 and Galaxy Nexus, both running 4.2.2 and having checked the always allow option on 3 machines right now.
Make sure all your machines are running the latest update for ADT and the SDK Tools, as the adb in the previous versions does not support the 4.2.2 security measures. One of my machines had the same problem, and it got fixed when I updated my tools.
Also, sometimes you have multiple Eclipse installs (I have about 11, for various reasons). If all of them aren't updated with the latest tools, make sure your PATH points to the adb in the newest update, and not any other.
I'm about to start writing some Android applications, I have downloaded Jave/Android and Eclipse.
I have a test Android tablet (Viewsonic Viewpad 10s) which I will be running the software on.
I was hoping to be able to just plug the Android device straight into my PC to allow me to debug/run applications on the tablet.
I have purchased a male->male USB cable and plugged it into both devices, but nothing happens, it doesn't even come up with an 'unknown device' in the 'devices' window. Is there something else I need to be doing to get Windows to recognise this device? (I'm running Windows 7 (64bit)).
Alternatively, is this the best way to be running/debugging on the tablet? I was thinking that there might be a network debugging application, as both devices are on the network?
I'm totally new to Android, so might be missing something obvious. Although I have set the 'USB Debugging' within the 'Development' menu.
Thanks in advance.
Rich.
It's a Windows problem, Windows isn't capable of recognize your tablet on its own, you need to install the appropriate USB drivers for your device in order to use your tablet when it is connected to your PC.
Under a GNU/linux distribution like Ubuntu everything is much more easier and you can just plug in your device without installing anything, you just have to set the right permissions for the device once.
Unplug the device from your machine
Install the driver for your device : http://www.viewsonic.com/support/downloads/drivers/_download/tablet/viewpad10s/ViewPad_10s_USB_driver.zip
Plug your device in
look at the device for a notificaiton saying debugging enabled.
If you dont, you will need to open Device Manager, find the listing that your computer thinks the device is and right click and uninstall it. Then unplug and replug.