I've tried the latest revision Android USB drivers from the SDK platform updater. I've tried PDANet and the Universal Naked Drivers.
Basically, ADB works great, but as soon as I "adb reboot bootloader", my Win7x64 says "USB Device Not Recognised".
I've already gone into device manager and tried manually updating the driver to the various ones I've downloaded. I've also tried "uninstalling" the driver and reinstalling it, but it keeps coming up as unknown device.
When I type "fastboot devices", nothing shows up (obviously).
What am I doing wrong?
Ozzah said:
I've tried the latest revision Android USB drivers from the SDK platform updater. I've tried PDANet and the Universal Naked Drivers.
Basically, ADB works great, but as soon as I "adb reboot bootloader", my Win7x64 says "USB Device Not Recognised".
I've already gone into device manager and tried manually updating the driver to the various ones I've downloaded. I've also tried "uninstalling" the driver and reinstalling it, but it keeps coming up as unknown device.
When I type "fastboot devices", nothing shows up (obviously).
What am I doing wrong?
Click to expand...
Click to collapse
Same thing happening with me, i want to re-lock my bootloader but when i am in bootloader mode windows does not want to recognize the device, i have tried everything too.
Did you install the correct drivers?
When connected and in the bootloader open the device manager in windows. You should see "android 1.0" near the top.
Update that driver. It should work.
Sent from my Nexus 7 using xda premium
Ozzah said:
I've tried the latest revision Android USB drivers from the SDK platform updater. I've tried PDANet and the Universal Naked Drivers.
Basically, ADB works great, but as soon as I "adb reboot bootloader", my Win7x64 says "USB Device Not Recognised".
I've already gone into device manager and tried manually updating the driver to the various ones I've downloaded. I've also tried "uninstalling" the driver and reinstalling it, but it keeps coming up as unknown device.
When I type "fastboot devices", nothing shows up (obviously).
What am I doing wrong?
Click to expand...
Click to collapse
Hey, As i said earlier i was having the same problem...try switching your usb cable then try. That is what fixed my problems.
ive done all mentioned above, even tried 3 different cables, no luck, anyone have suggestions
I dont know about what you want to do, but if you want to root and unlock use the wugfresh took kit. Its the bomb and as soon as I figure out where I can thank him and give a big kudos I will give thanks.
Sent from my Nexus 7 using xda app-developers app
I could be wrong, but I don't think adb works from bootloader, but the fastboot command should. I think you can also use Google's Composite ADB Interface driver too for it (I can't reboot my N7 atm or else I'd find out).
I don't have any other android-related drivers on my system either, only Google's USB driver from the SDK. I'm also on Windows 8, but I would assume Google's USB driver would work fine on Windows 7 too.
Also certain USB filter drivers may cause issues too, such as libusb, or even AMD's USB filter driver (however, I had no problems). Or if you want to wipe out any/specific USB drivers, I recommend getting: http://www.nirsoft.net/utils/usb_devices_view.html
Hi,
I tried a lot of other rooting applications and have had no luck with any of them. Then I found Wug's Nexus Root Toolkit. It works for my Nexus 4 (Jelly Bean 4.3) - until I came to the "Full Driver Configuration Guide" - where it gives a message: "ADB device was not found".
I have tried it over several times to no avail. Can anyone offer any clues as to what may be causing this?
btw, I am running the Wug's Nexus Root Toolkit v1.7.2 on Windows 8.
Thank you,
David
I was just having the same problem, and I realized after a while that I was making the STUPID mistake of not noticing that my phone was asking me to confirm USB debugging when the toolkit started searching for ADB devices. If you're as big of a dummy as I am (or just having an off day), this may be your problem
aaronwebstey said:
I was just having the same problem, and I realized after a while that I was making the STUPID mistake of not noticing that my phone was asking me to confirm USB debugging when the toolkit started searching for ADB devices. If you're as big of a dummy as I am (or just having an off day), this may be your problem
Click to expand...
Click to collapse
I am having the same problem. Where/how does the phone ask you to confirm USB debugging? It asks me when I turn it on, but not again later.
I have tried 3 or 4 different drivers, but, although the device is recognised by Windows 8, it is not recognised by Root Toolkit.
.... toolkits are the the devil...
They promote not learning what you're doing or what's actually happening in your devices so... there's posts like this.
please read this thread before touching your device
studacris said:
.... toolkits are the the devil...
They promote not learning what you're doing or what's actually happening in your devices so... there's posts like this.
please read this thread before touching your device
Click to expand...
Click to collapse
I'm not quite sure how this was supposed to help. My problem is that the ADB drivers do not seem to work on my computer. I have just tried installing the Android SDK (which comes with its own ADB drivers), having first uninstalled all the existing drivers. It did not help.
Not entirely sure where to go from here.
PDAnet's drivers may work. Simply install PDAnet (after uninstalling any previous attempted driver installations) to get the drivers.
studacris said:
PDAnet's drivers may work. Simply install PDAnet (after uninstalling any previous attempted driver installations) to get the drivers.
Click to expand...
Click to collapse
I had installed PDANet from within Root Toolkit, and it didn't work. Just now, I uninstalled everything again, and installed PDANet from their web site. Still get no ADB device in Root Toolkit. [NB I didn't have PDANet on the phone, but it seems to be there now]
I tried running adb from the android SDK, and it says "error: device not found".
However, I noted there was an adb prompt on the phone when I first plugged it in, this time (which I told to always accept).
[Later]
Wierd - it is now a bit further on. This is what I did:
Started PDANet on the phone, and enabled USB tethering.
Started PDANet on the computer, and it connected to the phone. At this point the USB debugging permission thing came up again, and I accepted it (also ticking the box to always accept).
Unticked USB tethering on the phone again.
Stopped PDANet on the computer (right click on icon, exit).
Tried the Root Toolkit again (pressed Root button), it connected to the device, and put it into fastboot mode.
The boot loader appeared on the phone, and the computer said "Checking Fastboot Status".
It seemed to stay like that for ever.
Killed the root toolkit. and tried again.
Left the computer for a while, and when I came back, it had completed.
So, it seems to be working now.
And when you try using fastboot directly instead of the toolkit....... what happens?
changing MTP to camera in USB connection mode did it for me...with MTP it showed correctly in device manager but the toolkit didn't recognise it
Gesendet von meinem Nexus 4 mit Tapatalk 4
studacris said:
And when you try using fastboot directly instead of the toolkit....... what happens?
Click to expand...
Click to collapse
I type "fastboot reboot" at the command prompt.
It replies "< waiting for device >"
I wait a few minutes.
Then I press ^C and the command prompt returns.
P.S. Changing the USB connection to camera doesn't make any difference to the above.
Best idea i didnt notice too
aaronwebstey said:
I was just having the same problem, and I realized after a while that I was making the STUPID mistake of not noticing that my phone was asking me to confirm USB debugging when the toolkit started searching for ADB devices. If you're as big of a dummy as I am (or just having an off day), this may be your problem
Click to expand...
Click to collapse
Thanx !!!!!!!
cmajetic said:
changing MTP to camera in USB connection mode did it for me...with MTP it showed correctly in device manager but the toolkit didn't recognise it
Gesendet von meinem Nexus 4 mit Tapatalk 4
Click to expand...
Click to collapse
Thank you so much! This solved it for me :good:
nikkilocke said:
I type "fastboot reboot" at the command prompt.
It replies "< waiting for device >"
I wait a few minutes.
Then I press ^C and the command prompt returns.
P.S. Changing the USB connection to camera doesn't make any difference to the above.
Click to expand...
Click to collapse
I got stuck the same way.
The way to got around was to change connection to camera -> the PC is intalling some drivers,
then turn off the USB debugging -> the PC is again installing some drivers,
then turn on the USB debugging -> "bingo" adb mode recognized by the toolkit
Now I can install and enjoy Kikat 4.4.1 :good:
cmajetic said:
changing MTP to camera in USB connection mode did it for me...with MTP it showed correctly in device manager but the toolkit didn't recognise it
Click to expand...
Click to collapse
I found the same solution, changing over from MTP to CAMERA suddenly had the toolkit recognise the phone and could boot it to unlock then root it... Previously, I had installed PDA drivers...
I am astonished how PATHETIC nexus phones/tablets are at simply connecting to a PC. I am baffled at the attempt by google to make their devices as UN-plug & play friendly as possible... bizarre! I have a N10, N7 and have had two N5's and all have the same PITA random disability....
grrr...
Mark.
So the Nexus toolkit is able to see the Nexus 7 as a media device but not Windows ?
marcelin99 said:
I got stuck the same way.
The way to got around was to change connection to camera -> the PC is intalling some drivers,
then turn off the USB debugging -> the PC is again installing some drivers,
then turn on the USB debugging -> "bingo" adb mode recognized by the toolkit
Now I can install and enjoy Kikat 4.4.1 :good:
Click to expand...
Click to collapse
So the Nexus 7 toolkit is able to see the Nexus 7 as media device with this method, but not Windows ? That's strange because Windows is supposed to see your files within the Nexus via Mtp mode. Is it that google removed the ability for Windows to be able to see Nexus 7 files in Android kit kat 4.4.2. What should I do then if I simply want to view files inside Nexus as a non root user ? B.T.W I'm currently on stock kitkat 4.4.2 build KOT49H. Therefore, I'd gladly appreciate it if anyone out there would answer this question and thanks in advance. Feel free to PM me on this so we can "talk" about this. : )
cmajetic said:
changing MTP to camera in USB connection mode did it for me...with MTP it showed correctly in device manager but the toolkit didn't recognise it
Gesendet von meinem Nexus 4 mit Tapatalk 4
Click to expand...
Click to collapse
Success.
Well, mtp connection works perfectly fine in my Windows 7 machine. But on my xp machine I could never get it to work no matter what driver combination I used.
I can see the reason they changed to mtp but I found mass storage to be much more user friendly.
Sent from my Nexus 4 using XDA Free mobile app
as others, I was using WUG kit to get back to stock. I was stuck without USB degugging options. Installing PDAnet did the trick, installing drivers so that I was able to get WUG working. I am now stock. All traces on my tinkering are gone. Later this week I will upgrade to a Galaxy Mega and trade in my Galaxy Nexus that I have loved for 3 plus years.
Stuck on fastboot screen
GranPaSmurf said:
as others, I was using WUG kit to get back to stock. I was stuck without USB degugging options. Installing PDAnet did the trick, installing drivers so that I was able to get WUG working. I am now stock. All traces on my tinkering are gone. Later this week I will upgrade to a Galaxy Mega and trade in my Galaxy Nexus that I have loved for 3 plus years.
Click to expand...
Click to collapse
Hi
Happy New Year to all! unfortunately I am left with the unusable nexus 7 that happened last night.
I was going crazy with the lags with lollipop and was waiting for the 5.0.5 update OTA but the delay was making me go crazy so I decided to take the risk of manually flashing the image using ADB and SDK.
Like many others pointed, I knew how to enable my computer to see my device by switching from MTP to PTP mode from my earlier rooting experience with Samsung, HTC and others. So that was not an issue for me.
I was following a tutorial from androidcentral and half way through I went to check a tutorial on youtube which I think caused the disaster. After I executed the adb devices no devices were detected and like I said I went and changed the MTP mode to off and bingo now my device was detected.
I executed device unlock and currently my device is in unlocked bootloaded state which is displayed in the fastboot screen where I am stuck now. Following the youtube instead of flashing each separately bootloader first and then the factory image I jumped to 'flash-all.bat' command...I saw something say on my command prompt on pc that completed in so many seconds or minutes which led me to get anxious and since no rebooting happened on the device I went and manually tried to press the power button.
From that time I am stuck on the fastboot screen. I can cycle through 'power off', restart booloader, recovery mode and start. But when I select 'restart bootloader' it comes to 'start' in the same mode and when I select that I can see a tiny 'Booting failed' in white letters in tiny fonts on the top left side of the 'Start'. I cannot go past this state.
Since I know the last time I had enabled 'usb debugging' and MTP off before everything went wrong I am presuming those states are still intact. I can see status on 'reboot bootloader' screen that my bootloader is unlocked.
Now, when I try to go through the process again my device is seen in device manager but when I send 'adb devices' command it cannot detect any devices. If my device is usable I can atleast go into settings to see if my MTP state and usb debugging status. Now I don't have that option. I even tried the Nexus Root Toolkit - everything is fine but until it tests the driver to finally say 'ADB device not found'.
After browsing so many posts I spotted there were some posts that said there is some discrepancy between the device id as listed by the driver to what actually is usb.inf, which all is too technical and overboard for me. And finally left me thinking that it is some issue of Windows PC as someone pointed that the ADB device was detected on a MAC. So I am now thinking to give it a shot in a mac machine as a final attempt to recover my device.
Anyone please suggest a solution, apologies if this is covered by someone elsewhere in the forum if so please point me there. I will make sure that from next time I will never do a manual flash of factory image.
please help!
It sounds like you are on top of it, but haven't hit the right combination yet. Thanks for the quote and I am sorry I am unable to offer any help. As mentioned in my post, I have switched to the Galaxy Mega and was pleasantly surprised by the OTA upgrade to 4.4. Now I am trying to figure out how to root it.
Hi guys,
I tried to move some files to my phone today, however when I plugged in the phone to my PC, it would only show the virtual drive with drivers. Installed those and reconnected, but to no avail. The phone just doesn't show up. In device manager it's shown as MTP device and when connecting with ADB enabled, "Marshall London ADB Android Device". I've done countless reinstalls of drivers but nothing has worked so far. Tried on a laptop running windows 8.1 but still nothing happens (PC runs windows 10 Education). Followed mutiple guides on installing the drivers, but never has the device type window (after manualy choosing a driver) shown an android device option. All help is appreciated.
Phone is rooted, bootloader unlocked and on 2.2.1 (5.1.1)
Model is ONE A2003.
It has worked before, when putting files on it a few months or even weeks ago.
I am trying to recover the data from my old bootlooping LGV20. My drivers are updated. When I plug my current, working LGV20 into the computer, the phone is immediately recognized and the driver is listed as LG v4.2.0, the most current in Device Manager. The phone is labled as its model number in Devices and Printers. When I plug in my old V20 (which has full access to stock recovery and download mode but does not boot) the computer recognizes something is plugged in, but in Device Manager the device doesn't show up. In Devices and Printers the phone shows up, but as "LGE Android Phone".
Summary:
When a working LGV20 is plugged in, it is recognized and the latest 4.2.0 driver is used.
When the bootlooping phone is plugged in and completely off, it is only recognized as "LGE Android Phone"
Not recognized in Recovery mode
Because of this issue, I cannot use adb on the phone to recover my data.
The phone is stock, non-rooted, android 7, LG-VS995. I have the usb debugging option in the recovery menu though the phone bootloops when this is selected.
ADB installed via 15 second installer and SDK.
"ADB Devices" returns nothing.
When in Download mode, "Fastboot devices" returns nothing.
This issue was repeated on a second computer.
USB 2.0 and 3.0 tried.
The phone is recognized in LGMobileSupportTool
In Download mode the phone is recognized as "LGE AndroidNet" in Devices and Printers and as a COM41 port (changed from 7) in Devices and printers.
What do? I'm at a loss and it feels like I've tried everything.
Edit: I've successfully dumped the phone via LGUP, tried flashed a new image, phone is still bootlooping. Is there any way I can browse the userdata dump file?
Hello all,
I have an essential phone running android 9.0 and recently I was trying to reactivate custom nav bar on my phone using adb, but the "adb devices" command returned no results. When I first installed custom nav bar several months ago, the phone was recognized by adb, but now it isn't. I am using the same cable that I did the first time, and I updated the usb drivers. I made sure that the phone was set to file transfer mode. In device manager, the phone shows up normally as Essential Phone ADB and it says the device is working properly. I even tried different cables and USB ports. If anyone has any idea what I should try next I would greatly appreciate it!
alokpillai22 said:
Hello all,
I have an essential phone running android 9.0 and recently I was trying to reactivate custom nav bar on my phone using adb, but the "adb devices" command returned no results. When I first installed custom nav bar several months ago, the phone was recognized by adb, but now it isn't. I am using the same cable that I did the first time, and I updated the usb drivers. I made sure that the phone was set to file transfer mode. In device manager, the phone shows up normally as Essential Phone ADB and it says the device is working properly. I even tried different cables and USB ports. If anyone has any idea what I should try next I would greatly appreciate it!
Click to expand...
Click to collapse
Did the USB debugging switch get flipped during an update?