Hi All,
I Found this by accident :
1. Turn Off Lumia 720
2. Press & Hold Volume Down Button
3. Connect device to USB (while still holding Volume Down Button)
4. An Exclamation Mark shown on the device
5. PC recognized a new device as "NOKIA BOOTMGR"
6. PC seems unable to locate device driver.
just sharing, if anyone interested.
maybe this can help hacking and development on Lumia WP8 Devices.
Related
Hi All,
My Diamond did not connect to Windows 7. Nothing happened when I plugged the Diamond in to my computer.
I contacted customer service from HTC. Their solution worked, just sharing with you in case you experienced the same trouble:
There are a few steps that we can do to resolve this issue. The first step is to disable RNDIS on your HTC Diamond:
- Tap Start and select Settings
- Go to the Connections tab
- Select USB to PC, and uncheck the box on this screen.
After this simply unplug and replug your Diamond, and the Diamond will be recognized by Windows 7.
install windows mobility centrum.
more info here w w w.microsoft.com/windows/windows-vista/features/mobility-center.aspx
then your device if found and installed.
I run windows 7 64 bit, and don't have any problems.
My Laptop running XP SP3 has an issue with the Nexus USB driver.
It worked great since Jan, but yesterday adb started getting disconnected sporadically. Now my laptop freezes every time I plug in the N1. The mouse gets stuck and it does not allow keystrokes either. The instant I unplug the phone it goes back to normal.
I sometimes get the device not recognized icon before it freezes.
Here is the system error from event viewer, it repeats.
Code:
The description for Event ID ( 6 ) in Source ( USBSTOR ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: \Device\000000da.
What I have tried:
Disable/enable usb debugging
Restart the phone, Restart the PC
Using other USB ports
Deleting all the USB root hubs and restarting
Disabling USB debugging and plugging it in, still gets stuck
deleting the adb, composite, nexus devices using USBDeview
deleting the keys corresponding to the two vendor/device ids from teh registry, restart and the reinstall the driver.
Dont know if its related but I added the device IDs for the Droid-Incredible to the driver .inf and successfully used it two days ago.
Another change was the installation of XP SP3 a week ago.
I think the next step is to delete all the Nexus driver files and reinstall them...
Anyone else experience this?
updates:
Followed this and deleted all teh "unknown devices" under USB Controllers. Now the USB mass storage mode works, still gets stuck when I turn on usb debugging
Deleted all the non connected Google/Nexus devices under "Disk Drives" too. Next I connected the N1, it froze for a few seconds, showed both "new device" and "device error" icons...
works a few times.... then bluescreens.
still hangs, BSODs.... can hardly develop as my laptop spends most of the time restarting when I try.
Heres the text from the article that helped...in case it goes down.
To get rid of that unwanted driver, device, or service:
1) Open the “Start” menu and choose “Run…”
2) Type in “cmd” (without the quotes) and click “ok”.
3) At the cmd prompt, type in “set devmgr_show_nonpresent_devices=1″ (without the quotes) and press enter. (Note that nothing seems to happen–this is ok. We are actually setting an environment variable which is going to help us to see hidden devices)
4) On the next cmd prompt line, type in “devmgmt.msc” (without the quotes) and press enter. This will launch the Windows Device Manager Console.
5) In the Device Manager Console, from the “View” menu, select “Show Hidden Devices”.
Now, as you expand the different drivers and devices in device manager you will see not only the items that Windows currently detects as installed on your pc (these are the usual items displayed), but you will also see drivers, devices, and services which have been loaded in the past but were not uninstalled or are not currently started. You can find your offending device, right-click, and choose “uninstall” to remove it from the system completely.
Click to expand...
Click to collapse
Heres an official howto on installing the ADB driver.
http://developer.android.com/sdk/win-usb.html
I think it has something to do with XP SP3 that was isntalled recently.
Any more suggestions other than the ones I've tried above?
Going to try and get this 3 year old laptop replaced asap.
i'm 99.9% sure this is due to a bad usb cable.
Who would have thought!
My HTC 8x for T-Mobile doesn't show up in windows explorer. It suddenly stopped after working perfectly from the day I got it. I thought it may be my computer, like a missing driver or a setting but it doesn't work on my work computer, while my friends lumia works perfectly on the same computer.
Did there a setting I switched off in the phone?
I really don't want to hard reset cause I have so many email accounts set up with the phone. Any help would be great!
http://www.windowsphone.com/en-us/how-to/wp8/windows-phone-app-for-desktop
or try to delete driver and reconect phone.
didn't do anything. Plus it doesn't work on another computer that detects my friends lumia.
Anyone have any ideas? Please any help?
I had this problem on my computer that was previously connected to my Lumia920, and the second time I have connected it, nothing detected. I just plugged/unplugged the device several times, and after 5-6 times, there it was. Is ur device functioning properly? Is there any sound of connection from ur computer when u connect ur device?
Is your phone locked, by chance? I noticed that if the phone is locked it will not expose the file subsystems unless its unlocked.
some people have also reported that using a different usb port in your computer also helps.
Make sure you are using short USB cable that is working with another phone. Half of problems i have with computer "not detected" phones was due to low quality USB cables and under-powered USB ports, especially ones located at front of computer. Try to experiment with different USB cables and USB ports on different computers, this sounds stupid but helps in half a cases .
samhema Washacum
I have some problems with my Lumia 920 when the cord is to long!
Try to use the orginal cord!
Hope it helps
Watch for Memory card!
Hi,
Try to remove the memory card and reattach the device.
It solved the problem for me and read on some places about it.
Be careful what size and 'shape'(brand) memory card you use as it can block usb usage as it seems for me.
Method 1:
Disconnect all the external devices (printers, scanner, USB (Universal Serial Bus) drives, etc...)Except mouse and the keyboard and then boot up.
If this corrects the issue then add the devices back one at a time until you discover the piece of hardware causing the issue. Then get any updated drivers\software for the device.
Method 2:
If you still come across the issue, I suggest you to run Hardware Troubleshooter and then check for the issue.
Method 3:
If the above step does not help us to diagnose the issue, uninstall the drivers for USB [Universal Serial bus] host controller and restart the computer. Let Windows install the generic drivers and then see if it helps you to fix the issue.
a) Open Device Manager by clicking the Start button, then Device Manager in the search box.*
b) If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
c) Look for the device under USB [Universal Serial bus] host controller, right click on it and select Uninstall.
d) Reboot the computer.
e) On reboot, Windows 7 should re-install the drivers automatically.
You may also refer the steps from the manufacture website or contact Nokia for any known issues.
Floods7 said:
My HTC 8x for T-Mobile doesn't show up in windows explorer. It suddenly stopped after working perfectly from the day I got it. I thought it may be my computer, like a missing driver or a setting but it doesn't work on my work computer, while my friends lumia works perfectly on the same computer.
Did there a setting I switched off in the phone?
I really don't want to hard reset cause I have so many email accounts set up with the phone. Any help would be great!
Click to expand...
Click to collapse
Try installing the Nokia Software Recovery Tool or the Nokia Care Suite. It should install all of the drivers necessary to connect your device. There is probably a driver corrupted.
the question you need to ask is if your friend has the same model Lumia as you. If he doesn't, it could be a problem with the driver on your PC.
If he does have the same model as you, it has to be a problem with your phone. You need to do a factory reset.
Have you checked if it works with the Windows Phone app?
Also, there is really no reason to have a need to connect it to a PC. As long as you store your documents and photos in OneDrive, you can easily access them from your PC without having to connect your device.
Hello,
I got my Mi4's display broken, so the touch doesn't work anymore. I want to save all the files in the PC, but when I connect the phone it's just in 'charger mode'. I cannot chose the option of 'transfer files to the pc' because the screen doesn't work.
Any ideas guys? That don't include changing the display
thanks
Dear All,
Yesterday I switched on my old Pixel 4a5G then connected to the PC and... nothing happened.
I dont have any notification on Windows (even on Ubuntu) about new device (checked also device manager) and the same on the Pixel.
Phone only charged.
I decided to check another cables and I had the same result. I even bought new cable USB Ato C 3.2 gen 1 and still nothing only charging.
I checked on another PC the same - only charging my device and no connection. Of course I switched on usb debugging on Developer Mode and USB/Android Auto File Transfer option, even PTP doesen't work.
So I had:
- no notification about USB connection on the Pixel
- no notification about new device on the Windows (missing sound , no device Android or another name in Device Manager on the Windows)
I switched Pixel in safe mode - the same result
I connected to the Pixel my WD SE protable hard drive and... I had notification about USB device, I opened it and had two options:
- This device (which was choosen)
- Connected Device
rest like File Transfer, Connection Thetering were grayed out
I choose Connected Device and there was an info "switching" and after couple seconds "cound not switch..."
If anyone had the same problems? could be software problem or USB port broken on the Pixel?
I have latest updates installed on the Pixel. I did Factory Reset but nothing changed. Even on Fastboot mode Windows didn't recognize device (no sound nothing)
Xrzysioo said:
Dear All,
Yesterday I switched on my old Pixel 4a5G then connected to the PC and... nothing happened.
I dont have any notification on Windows (even on Ubuntu) about new device (checked also device manager) and the same on the Pixel.
Phone only charged.
I decided to check another cables and I had the same result. I even bought new cable USB Ato C 3.2 gen 1 and still nothing only charging.
I checked on another PC the same - only charging my device and no connection. Of course I switched on usb debugging on Developer Mode and USB/Android Auto File Transfer option, even PTP doesen't work.
So I had:
- no notification about USB connection on the Pixel
- no notification about new device on the Windows (missing sound , no device Android or another name in Device Manager on the Windows)
I switched Pixel in safe mode - the same result
I connected to the Pixel my WD SE protable hard drive and... I had notification about USB device, I opened it and had two options:
- This device (which was choosen)
- Connected Device
rest like File Transfer, Connection Thetering were grayed out
I choose Connected Device and there was an info "switching" and after couple seconds "cound not switch..."
If anyone had the same problems? could be software problem or USB port broken on the Pixel?
I have latest updates installed on the Pixel. I did Factory Reset but nothing changed. Even on Fastboot mode Windows didn't recognize device (no sound nothing)
Click to expand...
Click to collapse
could very well be the phones usb port i had one similar on a htc u11 that acted the same,the only way to know for sure is to replace it or try cleaning it really goor with a squished qtip ,, lol
hammered58 said:
could very well be the phones usb port i had one similar on a htc u11 that acted the same,the only way to know for sure is to replace it or try cleaning it really goor with a squished qtip ,, lol
Click to expand...
Click to collapse
I will send it to the service to check it and replace
Mine stopped connecting to PC after Nov2022 security update, still will not connect & Google dont want to know, they just shut threads down.
Hi !
I have had the same problem for a long time !!! No more notifications to choose it when connect my Pixel to PC !!? no Pop-up to choose "Connection, Photo Transfer, Charge, etc..."
The simplest solution is to connect the Pixel via USB to the PC/MAC then open Settings/Connected Devices/USB/ To finally access to choose "File Transfer, Connection Sharing, Midi, Etc..." menu.
Do not forget to first activate the developer mode and USB debugging.
But I don't understand why I never see the notification to choose