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Can't connect to activesync anymore

I am running WM 6.1 (Michyprima Full) and I wanted to flash to another ROM, however for some reason my phone will no longer connect to activesync on the desktop (tried two pcs). It can sync just fine via exchange.
Nothing has changed on the mobile device or the desktop; ActiveSync on the mobile device is set to allow connection via USB and activesync on the desktops is set to use USB to sync.
I know the underlying connection is ok because the device will start charging from the USB cable when it is hooked up.
What can I do to fix this situation so I can flash to a new ROM? I do not need to save anything on the device... I have tried soft-resetting.
EDIT: Also when I list USB connected devices on the desktop PC, I see one called "Windows Mobile-based Device"

did you use a ram cleaner
i used a ram cleaner and my device dosent get recognised by pc.let me know if you find a solution.

padanfain said:
I am running WM 6.1 (Michyprima Full) and I wanted to flash to another ROM, however for some reason my phone will no longer connect to activesync on the desktop (tried two pcs). It can sync just fine via exchange.
Nothing has changed on the mobile device or the desktop; ActiveSync on the mobile device is set to allow connection via USB and activesync on the desktops is set to use USB to sync.
Click to expand...
Click to collapse
Have you tied going to Start/Settings/System (or Connections) and running USB to PC? Try unchecking 'Enable enhanced network' then OK back to the start screen and try reconnecting.
If that doesn't work, try a hard reset with the current ROM, and see if that fixes it. If so, you can then flash the new ROM.
If it still doesn't work, I think you can flash using a memory card or the Flash Drive without needing to access the PC.

padanfain said:
I am running WM 6.1 (Michyprima Full) and I wanted to flash to another ROM, however for some reason my phone will no longer connect to activesync on the desktop (tried two pcs). It can sync just fine via exchange.
Nothing has changed on the mobile device or the desktop; ActiveSync on the mobile device is set to allow connection via USB and activesync on the desktops is set to use USB to sync.
I know the underlying connection is ok because the device will start charging from the USB cable when it is hooked up.
What can I do to fix this situation so I can flash to a new ROM? I do not need to save anything on the device... I have tried soft-resetting.
EDIT: Also when I list USB connected devices on the desktop PC, I see one called "Windows Mobile-based Device"
Click to expand...
Click to collapse
Have you tried completely uninstalling ActiveSync from your computer, reboot, download and re-install ActiveSync. Its worked for me - sometimes the USB drivers become corrupt.

When I try and hit ok to commit the change of unchecking the advanced network functionality (it was checked before), the device just sits there with the spinning thinking wheel. Doing a soft reset and going back into the usb to pc shows the box still checked.
I will try a hard reset.

padanfain said:
When I try and hit ok to commit the change of unchecking the advanced network functionality (it was checked before), the device just sits there with the spinning thinking wheel. Doing a soft reset and going back into the usb to pc shows the box still checked.
I will try a hard reset.
Click to expand...
Click to collapse
I think thats the only answer at present- the inability to change the A/S settings on the device suggest something's got corrupted somewhere

I was able to get it to sync after a hard reset.
However, when I attempted to load Michy's light ROM the device rebooted and sat at "Loading..." with a white screen. The wrapper then said error connection failed.
If I soft reset the device it comes back to the loading... screen; if I hard reset the device, it comes back to the loading screen after the hard reset. How can I fix this?

blast. left the stupid sd card in while i did the first flashing.
Removed SD card, re-hard resetted, then re-ran the ROM updater.

Sometimes its OK, sometimes it isn't- just one of those little mysteries I guess!
Glad its OK now. Michy's Lite ROM is excellent

Solution for deleted active sync notification called replog
YES...you guys definitely ERASED your Active sync NOTIFICATION file called replog. As someone suggested...he ran his CLEANER...then the problem begun.
It is true that Hard Reseting the device will get you back that file, but there is an easy way to do it...I can't find the original article but this file I will post will RE-CREATE that deleted replog notification file that is needed by active sync to work.
So next time you try and clean-up...just make sure you won't delete any file named replog
To use this FIX, just place it on your SD Card and run the file. If you want you can create an icon at Windows>Start Menu>Programs>to whatever folder... that will work too for easy access.
Just a word of caution...DON'T RUN THE FILE MORE THAN ONCE...why? Because it will re-create the file again. Although it won't hurt in any way except eat up internal memory, but you don't want any duplicated file... right?

WMDC does not run at all on Vista business 32

Hi all,
i am really very disappointed, already spent around 12 hours looking for a solution,
the WMDC does not run at all on my Vista machine which is Business 32-bit,
i tried to uninstall, install again, reboot, more than 20 times, with no luck
this is making me creazy, i couldn't find someone suffered the same
please help me, i am willing even to pay for this help
regards,

sounds like a corrupt vista install I would reinstall or restore it back to default

how to confirm its vista
Hi..
thanks for your post?
how did you confirm that its vista issue,
could i just put the vista CD and ask to rebuild?
will it remove my files on the system

yes itll delete everything
my advice would be to get 7

"i couldn't find someone suffered the same"
was a bit of a give away
you could try another vista computer to verify
or if you're using usb you could try using bluetooth and virsa versa
personally I never had any problems with vista wmdc

its not showing the interface
my home vista machine is working fine,
my machine, is not, its not yet about connecting my mobile,
the software it self is not showing,
i install it, without any error msg, it shows in the start menu, and in the programs of control panel,
but when i click on the icon in the start menu, nothing show at all,
i belive it should show the interface even if the mobile is not connected yet,

acctually it shows ew devices
hi.
it shows new devices as unknown device then the driver couldn't be found

if it's a work computer they prob just removed the rights of installing new hardware
from your user account

i tried both with my user which is part of the administrators group, and also tried with the administrator account directly,
both resulted the saem
it takes around 1 minute on the "0 remaining time"
then it just hide without saying its finished or completed,
the result is an icon in the start menu,
and in the windowsmobile directory in windows folder, it shows some files, like setup, and drivers
then if i check properties of the icon in the start menu, it shows that its for first time installation,
i click on it, it install again
then the changes are on the windowsmobile folder in windows folder more EXE files are there like WMDC.exe (but if run it, nothing comes out)
if i recheck the properties of the icon on the start menu, there is no more target application, (you could call it broken link)

whats happenning
i went through the installation part of it,
http://www.pocketpcfaq.com/faqs/wmdc/install.htm
its exactly what happen with me,
but my side i reach the screen which shows "Installing device driver software"
then it failes after,
if i check the devices i find that it find a bluetooth device, but cannot install it correctly

How to: Samsung Kies program

It works, though not made for the Captivate. Here's how to get it:
First, you will need to get .NET 4 Framework from Microsoft and install that. You will need to restart your computer after installing, so be prepared.
Go to samsungapps.com or it should be the first search link when searching for Samsung Kies using Google.
It will tell you that it's not available for the US.
Click the "Applications" tab in the upper right part of the screen.
Click "See all Countries"
Click on "Europe" then select "United Kingdom" (I did this just to make sure that whatever follows would be in English, but it may not matter)
At the bottom-center there will be a link "Download Kies" Save or Run the .exe
During installation, it will ask you what language you want. You can choose US at that point.
Phone wouldn't connect at first. I closed the program, disconnected the USB cable, then reconnected the USB cable and Windows started installing drivers. After that, I reopened Kies, selected Samsung Kies on the phone when prompted for USB connection type, and it started establishing connection with the phone. It will then show the phone's model number and your wireless phone number.
If you're having trouble after the drivers are installed, just make sure that the "MTP Application" with USB connector symbol is displayed on the phones screen. It Kies should recognize the phone and connect automatically after that.
It has a few useful features, but isn't the best phone assisting software I've used.

Thanks for this. I just wish I had it before I spent so much time getting my Outlook contacts on my phone.
I installed and ran the program before connecting my phone. When I did connect, it recognized it right away.

What kind of system did you do this on? I tried it a couple of days ago, but my 64 bit Win 7 system had no love for the Samsung MTP USB drivers.

XP, sp3
Someone posted on another topic that they had to update the .NET framework and some other stuff to get it to work on 7.
Sent from my SAMSUNG-SGH-I897 using XDA App

I tried doing it on xp sp3 as well and it always says connecting device and it won't ever connect. Tried to re-install and all that updated everything and still wont work

Why do I need Kies? (innocent tone) All I've needed is mass storage option..

After installing Kies I kept having problems with Win7 64 bit until I plugged the USB cable directly into one of the motherboard ports. Once I did that things started working correctly.

I'm using Windows 7 Starter on my netbook. It's true, you have to get .NET 4 Framework, and I'll add that to the original post.
No one NEEDS Kies, but it is nice to have if you want to back up your contacts and convert videos to play on the phone.
Dave

I've found this only connects if you're using the TouchWiz launcher.

phrebh said:
XP, sp3
Someone posted on another topic that they had to update the .NET framework and some other stuff to get it to work on 7.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Tried that too. The Kies Recovery Mode attempts to install the drivers and the Samsung Android USB Composite Device does install but the CDC Abstract Control Model (ACM) driver fails.
Any idea what that "other stuff" is that might be needed?
Tnx

this is great... but for whatever reason, when transfering music, i can't get playlists to transfer, nor some album art...
oh and i'm using it on win 7 pro x64... you do need the .net 4 framework and it will only connect while using TouchWiz :-\

Truceda said:
It works, though not made for the Captivate. Here's how to get it:
First, you will need to get .NET 4 Framework from Microsoft and install that. You will need to restart your computer after installing, so be prepared.
Go to samsungapps.com or it should be the first search link when searching for Samsung Kies using Google.
It will tell you that it's not available for the US.
Click the "Applications" tab in the upper right part of the screen.
Click "See all Countries"
Click on "Europe" then select "United Kingdom" (I did this just to make sure that whatever follows would be in English, but it may not matter)
At the bottom-center there will be a link "Download Kies" Save or Run the .exe
During installation, it will ask you what language you want. You can choose US at that point.
Phone wouldn't connect at first. I closed the program, disconnected the USB cable, then reconnected the USB cable and Windows started installing drivers. After that, I reopened Kies, selected Samsung Kies on the phone when prompted for USB connection type, and it started establishing connection with the phone. It will then show the phone's model number and your wireless phone number.
If you're having trouble after the drivers are installed, just make sure that the "MTP Application" with USB connector symbol is displayed on the phones screen. It Kies should recognize the phone and connect automatically after that.
It has a few useful features, but isn't the best phone assisting software I've used.
Click to expand...
Click to collapse
I'm on Win 7 64 bit , amazing guy , you're the best

Wow thnx a lot! finally its working for me and i have a windows 7 x64.

Can't connect.
My phone is rooted and all drivers installed fine except the MTP driver won't install.
I can choose mass storage and mount but when I choose Kies option on the phone it just goes crazy and keeps flashing MTP on the phone.
Someone posted somewhere that you need to do a factory reset but I really don't want to do that cause it will wipe all my apps and stuff.
Any other ideas?

You need to connect the usb cable with it already set to the Kies option.

My phone connects to Win7 x86 when it is in development mode and Kies registers that fact but complains that it cannot be in that mode. So I switch the mode off in the phone but now when I plug the phone in it does not even get recognized. Nothing, not even trying to install driver or a new USB device found.
What am I doing wrong?
Net 4 is installed and so are the Sammy usb drivers.

What's the point of Kies?

Hi,
I have HTC Tilt 2 and I have contacts with photos on that. Also all the photos are in sync with outlook. When I used Kies to sync my contacts it did not bring any photo? What should I do? I have more than 300 contacts..

Samsung, this is pathetic!
Wasted 2 hours of my life dealing with your stupidity.
heres the solution (problem was launcher pro):
1. grab the homeswitcher from market
2. set touchwiz crap as default.
3. reboot phone.
from then on, kies acts normally, phone gets detected normally etc etc etc.
thanks for wasting my time samsung.
edit: even after this i had probs, seems i need to reboot phone everytime i need to connect it. on first connect after fresh reboot it seems to work. goodluck. (very very very poor software as expected from samsung)
edit2: this is a bug fest! who coded this samsung? some student? jesus this soft is so bad it kills all the experience. what a piece of junk. barely works. flaky. buggy. samsung, fire your software team asap. they suck. only a true amateur can output this kind of garbage. this is below badly coded visualbasic garbage.

Seems to me you need to take your unhappy self and learn how to code. Then apply for a Job at Samsung claiming you can put their programmers to shame. IF you aren't gonna do anything about it, other than complain, you need to just STFU or get another phone.
kodea said:
Samsung, this is pathetic!
Wasted 2 hours of my life dealing with your stupidity.
heres the solution (problem was launcher pro):
1. grab the homeswitcher from market
2. set touchwiz crap as default.
3. reboot phone.
from then on, kies acts normally, phone gets detected normally etc etc etc.
thanks for wasting my time samsung.
edit: even after this i had probs, seems i need to reboot phone everytime i need to connect it. on first connect after fresh reboot it seems to work. goodluck. (very very very poor software as expected from samsung)
edit2: this is a bug fest! who coded this samsung? some student? jesus this soft is so bad it kills all the experience. what a piece of junk. barely works. flaky. buggy. samsung, fire your software team asap. they suck. only a true amateur can output this kind of garbage. this is below badly coded visualbasic garbage.
Click to expand...
Click to collapse

Can't connect to your phone. Disconnect it, Restart it, then try connecting again

I keep getting this message when I connect my DVP to Zune
I tried this solution from the Microsoft website:
If it is running, close the Zune software and disconnect your phone.
Open Certificate Manager. To do this, click Start, type certmgr.msc, and press Enter.
Expand Personal, and then expand Certificates.
Click the heading for the Issued By column to sort the column, and then look for one or more certificates that is issued to "zune-tuner://windowsphone/...".
Right-click that certificate and then click Delete. Click Yes.
From the File menu, click Exit.
Start the Zune software and connect your phone to create a new certificate.
When I expand personal there is no Certificate folder to expand the whole personal folder is empty
Anyone know of a way to fix this>

dilzo said:
I keep getting this message when I connect my DVP to Zune
I tried this solution from the Microsoft website:
If it is running, close the Zune software and disconnect your phone.
Open Certificate Manager. To do this, click Start, type certmgr.msc, and press Enter.
Expand Personal, and then expand Certificates.
Click the heading for the Issued By column to sort the column, and then look for one or more certificates that is issued to "zune-tuner://windowsphone/...".
Right-click that certificate and then click Delete. Click Yes.
From the File menu, click Exit.
Start the Zune software and connect your phone to create a new certificate.
When I expand personal there is no Certificate folder to expand the whole personal folder is empty
Anyone know of a way to fix this>
Click to expand...
Click to collapse
SO Zune just cannot see your phone?
Try this:
Start => Devices and Printer, find your device name and right click => troubleshoot
Sometime the drivers of the phone on the machine corrupt, it happens on both HD7 and Titan. Use troubleshoot will help you reinstall the driver for the phone.

Also make sure you're logged onto your computer with full permissions. I tried to connect my HD7 via a guest account and got that constantly. In the end it turned out I needed to be logged into an account that wasn't guest.
Other than that, there was NO solution for my issue.

[Q] MTP problems

Hey guys, I'm trying to connect my Nexus 5 to my Windows 7 laptop via MTP. However, it never shows up in the "My computer" directory.
I let it install default adb drivers, I've even tried the "naked drivers" from the Nexus 5 forum. It just never shows up. Any help?

MTP Problems with linux
I have run into MTP connection problems while copying my old phones (GNex) contents on to my new Nexus 5 with my laptop running Fedora 19. Loading my old GNex contents on the laptop via MTP was smooth. Then I switched the phones. The Nexus 5 connects as expected and i can access the "sdcard" folder tree in gnome. But during the copying process (> 1000 files, mostly photos, some app-data) the connection constantly resets after 20-100 files. The phone states "process.media stopped" or something similar and the file-copy halted. I needed to unplug and plug the phone back in several times and restart the copying from the beginning. Quite annoying - thank god i rarely need to copy such an amount of files.
Anyone experiencing similar problems?

Sluggo_ said:
Hey guys, I'm trying to connect my Nexus 5 to my Windows 7 laptop via MTP. However, it never shows up in the "My computer" directory.
I let it install default adb drivers, I've even tried the "naked drivers" from the Nexus 5 forum. It just never shows up. Any help?
Click to expand...
Click to collapse
I had the same problem too, on Windows 7. Here's what fixed it for me:
1. With the phone plugged in to USB, open up Device Manager
2. You should see an "Android" category, so expand that and right-click on whatever is in there (in my case, it said Google Nexus ADB Interface) and click Uninstall
3. In the confirm dialog that pops up, check the "Delete the driver software..." box, then click OK.
4. Once the driver is finished uninstalling, reboot your Nexus 5 while it's still connected to your PC (important that it is still plugged in!)
5. At some point during the phone reboot, Windows should say it's installing new drivers. The Nexus 5 should appear in My Computer shortly.

theproskater said:
I had the same problem too, on Windows 7. Here's what fixed it for me:
1. With the phone plugged in to USB, open up Device Manager
2. You should see an "Android" category, so expand that and right-click on whatever is in there (in my case, it said Google Nexus ADB Interface) and click Uninstall
3. In the confirm dialog that pops up, check the "Delete the driver software..." box, then click OK.
4. Once the driver is finished uninstalling, reboot your Nexus 5 while it's still connected to your PC (important that it is still plugged in!)
5. At some point during the phone reboot, Windows should say it's installing new drivers. The Nexus 5 should appear in My Computer shortly.
Click to expand...
Click to collapse
This worked for me. Thanks proskater! :good:

sweet_anesthesia said:
I have run into MTP connection problems while copying my old phones (GNex) contents on to my new Nexus 5 with my laptop running Fedora 19. Loading my old GNex contents on the laptop via MTP was smooth. Then I switched the phones. The Nexus 5 connects as expected and i can access the "sdcard" folder tree in gnome. But during the copying process (> 1000 files, mostly photos, some app-data) the connection constantly resets after 20-100 files. The phone states "process.media stopped" or something similar and the file-copy halted. I needed to unplug and plug the phone back in several times and restart the copying from the beginning. Quite annoying - thank god i rarely need to copy such an amount of files.
Anyone experiencing similar problems?
Click to expand...
Click to collapse
Exactly the same problem here... no way to copy my pics archive in the N4 after a reflash -___-
I've ""solved"" zipping the "camera" folder and then unzipping it through the N4....

Nexus5 USB Data Transfer Issue
sweet_anesthesia said:
I have run into MTP connection problems while copying my old phones (GNex) contents on to my new Nexus 5 with my laptop running Fedora 19. Loading my old GNex contents on the laptop via MTP was smooth. Then I switched the phones. The Nexus 5 connects as expected and i can access the "sdcard" folder tree in gnome. But during the copying process (> 1000 files, mostly photos, some app-data) the connection constantly resets after 20-100 files. The phone states "process.media stopped" or something similar and the file-copy halted. I needed to unplug and plug the phone back in several times and restart the copying from the beginning. Quite annoying - thank god i rarely need to copy such an amount of files.
Anyone experiencing similar problems?
Click to expand...
Click to collapse
Raghu: I am also facing the very same problem. Factory Reset also didnt fix the issue.
copying of huge sized files works fine. copying of many files (such as image files) gets stuck after 20 or 100 files.
i faced this issue on a copying data from my Laptop with Windows7 OS to Nexus 5
I am also awaiting a fix for this.

sweet_anesthesia said:
I have run into MTP connection problems while copying my old phones (GNex) contents on to my new Nexus 5 with my laptop running Fedora 19. Loading my old GNex contents on the laptop via MTP was smooth. Then I switched the phones. The Nexus 5 connects as expected and i can access the "sdcard" folder tree in gnome. But during the copying process (> 1000 files, mostly photos, some app-data) the connection constantly resets after 20-100 files. The phone states "process.media stopped" or something similar and the file-copy halted. I needed to unplug and plug the phone back in several times and restart the copying from the beginning. Quite annoying - thank god i rarely need to copy such an amount of files.
Anyone experiencing similar problems?
Click to expand...
Click to collapse
I have got the same issue. Any solution?

For me Unfortunately, MTP application has stopped problem is solved !!!
kissme99 said:
I have got the same issue. Any solution?
Click to expand...
Click to collapse
Read my post #6, problem is solved !!! very minor point but we tend to overlook it...
http://forum.xda-developers.com/showthread.php?t=2547187
Do vote me Thanks if your problem is solved...:good:

theproskater said:
I had the same problem too, on Windows 7. Here's what fixed it for me:
1. With the phone plugged in to USB, open up Device Manager
2. You should see an "Android" category, so expand that and right-click on whatever is in there (in my case, it said Google Nexus ADB Interface) and click Uninstall
3. In the confirm dialog that pops up, check the "Delete the driver software..." box, then click OK.
4. Once the driver is finished uninstalling, reboot your Nexus 5 while it's still connected to your PC (important that it is still plugged in!)
5. At some point during the phone reboot, Windows should say it's installing new drivers. The Nexus 5 should appear in My Computer shortly.
Click to expand...
Click to collapse
Works! Thanks :good:

I have a pair of new Nexus 5 phones (yes 2), now I can get the ADB driver if I enable android debugging to work, but I can not for anything get the phones to work in MTP mode so I can move files to them. I've tried everything I can find online. I see Nexus5 with a triangle next to it in device manger and no matter what driver I've tried it always says wrong driver. Nor does it automatically locate and install the proper driver, as it should even following the steps provided in this thread. Thus I have 2 phones and no way to access them at all currently.
I can not believe how much trouble just transferring files is, there is something very wrong with these phones when I have to waste over an hour to copy files to them.
ERIC

theproskater said:
2. You should see an "Android" category, so expand that and right-click on whatever is in there (in my case, it said Google Nexus ADB Interface) and click Uninstall
Click to expand...
Click to collapse
For people cannot find above mentioned category, mine showed ACER ADB Interface under C before it was fixed. After fixing it, there is Nexus 5 under Portable Devices folder.

egandt said:
I have a pair of new Nexus 5 phones (yes 2), now I can get the ADB driver if I enable android debugging to work, but I can not for anything get the phones to work in MTP mode so I can move files to them. I've tried everything I can find online. I see Nexus5 with a triangle next to it in device manger and no matter what driver I've tried it always says wrong driver. Nor does it automatically locate and install the proper driver, as it should even following the steps provided in this thread. Thus I have 2 phones and no way to access them at all currently.
I can not believe how much trouble just transferring files is, there is something very wrong with these phones when I have to waste over an hour to copy files to them.
ERIC
Click to expand...
Click to collapse
Figured out the issue, it was the fact that MTP requires the media feature pack if on Windows N, once the pack is installed and patched and rebooted (many times) it works.
ERIC

figured out the issue, it was the fact that mtp requires the media feature pack if on windows n, once the pack is installed and patched and rebooted (many times) it works.
Eric
Click to expand...
Click to collapse
thank you you are my personal hero!!!!!!!!!! I was looking for this for a year!

theproskater said:
I had the same problem too, on Windows 7. Here's what fixed it for me:
1. With the phone plugged in to USB, open up Device Manager
2. You should see an "Android" category, so expand that and right-click on whatever is in there (in my case, it said Google Nexus ADB Interface) and click Uninstall
3. In the confirm dialog that pops up, check the "Delete the driver software..." box, then click OK.
4. Once the driver is finished uninstalling, reboot your Nexus 5 while it's still connected to your PC (important that it is still plugged in!)
5. At some point during the phone reboot, Windows should say it's installing new drivers. The Nexus 5 should appear in My Computer shortly.
Click to expand...
Click to collapse
thank you so much man!

egandt said:
Figured out the issue, it was the fact that MTP requires the media feature pack if on Windows N, once the pack is installed and patched and rebooted (many times) it works.
ERIC
Click to expand...
Click to collapse
To quote Paul Gimatti from Shoot 'Em Up, "**** me sideways". I've been pulling my hair out all day today because of this.

A good way to fix MTP driver problems in XP is unzip the Windows Media Player 11 (wmp11-windowsxp-x86-enu.exe) installer and run WindowsXP-MSCompPackV1-x86.exe or umdf.exe not sure which one fixes it. Then try update the MTP drivers.

exactly same as my case.
sweet_anesthesia said:
I have run into MTP connection problems while copying my old phones (GNex) contents on to my new Nexus 5 with my laptop running Fedora 19. Loading my old GNex contents on the laptop via MTP was smooth. Then I switched the phones. The Nexus 5 connects as expected and i can access the "sdcard" folder tree in gnome. But during the copying process (> 1000 files, mostly photos, some app-data) the connection constantly resets after 20-100 files. The phone states "process.media stopped" or something similar and the file-copy halted. I needed to unplug and plug the phone back in several times and restart the copying from the beginning. Quite annoying - thank god i rarely need to copy such an amount of files.
Anyone experiencing similar problems?
Click to expand...
Click to collapse
i still cannot find a solution. would you please email me if you find a solution?

theproskater said:
I had the same problem too, on Windows 7. Here's what fixed it for me:
1. With the phone plugged in to USB, open up Device Manager
2. You should see an "Android" category, so expand that and right-click on whatever is in there (in my case, it said Google Nexus ADB Interface) and click Uninstall
3. In the confirm dialog that pops up, check the "Delete the driver software..." box, then click OK.
4. Once the driver is finished uninstalling, reboot your Nexus 5 while it's still connected to your PC (important that it is still plugged in!)
5. At some point during the phone reboot, Windows should say it's installing new drivers. The Nexus 5 should appear in My Computer shortly.
Click to expand...
Click to collapse
you my friend deserve a medal