I have a Windows Phone 8 device which I want to developer unlock. I followed these instructions: http://msdn.microsoft.com/en-us/library/windowsphone/develop/ff769508(v=vs.105).aspx
After pressing register the "Sign in" dialog should appear and I should be able to sign in with developer account credentials. The Sign in dialog box appears only for a short time and then closes instantly. I cannot even see what it contains, it closes immediately.
I tried uninstalling-reinstalling the Windows Phone 8 SDK 3 times already, but it did not help.
Florin.Monday, November 19, 2012 9:22 PM
Something might be wrong regarding the device driver installation for the phone device.
1. In Windows 8, open the File Explorer, and locate Portable Devices. Try renaming the device.
2. If that fails, open Device Manager (devmgmt.msc), locate Portable Devices, and then right click on your phone device and choose uninstall. Let the phone reinstall.
Mark Chamberlain Sr. Escalation Engineer | Microsoft Developer Support | Windows Phone 7
Monday, November 26, 2012 6:01 PM
- Proposed as answer by r aditya gumay Saturday, January 26, 2013 8:02 AM
@Florin - What is the message you are getting on the Unlock tool? Can you try resetting the browser settings, try disabling pop-up blocker if enabled. Also, can you please share which company WP8 are you using?
Sunday, January 27, 2013 5:11 AM
- Proposed as answer by yhj199 Sunday, May 19, 2013 4:34 AM
m also having the same problem. please help
M using Nokia Lumia 520 ( Windows Phone 8)
Screen appears for a second and disappear.
I tried renaming the phone and then also same problem
Status is displayed : Identified Windows Phone 8 device. Click the register Button to unlock the phone.Tuesday, April 16, 2013 4:11 AM
And when you see the message:
Status is displayed : Identified Windows Phone 8 device. Click the register Button to unlock the phone.
What happens then?
Please see also : How to register your phone for development
Please let us know in case still have troubles with this.
Tuesday, April 16, 2013 7:03 AMModerator
- Proposed as answer by Klaus BasslerMicrosoft employee, Moderator Tuesday, April 16, 2013 7:03 AM
Sir I tried alot but nothing happens. When I click on Register button sign in window appears for less than a second.
while I tried in my friends machine and was successfully done.. I will try in my machine again by deleteing cookies as per told by @satish and will let u knw.
Thanks for quick response.
Tuesday, April 16, 2013 7:21 AM
- Edited by Nikki Punjabi Tuesday, April 16, 2013 7:22 AM
Friday, May 10, 2013 7:31 PM
I had the same problem. After I found this thread I was trying all these steps, & when I'm going to my Dev account, there was a message as bellow,
We've made some changes—you might notice your account expiration isn't appearing anymore. Go here to get the scoop.
Then,I just went through my account again, but, it was not expired or nothing was wrong there. Any how I went through my Dev: Account & re-saved all the account details. After that, when I'm pressing "Register" button, the Sign in dialog box appeared normally & I could successfully developer unlock my phone.
These links also will helpful for you.
https://dev.windowsphone.com/en-us/downloadsdk?logged_in=1Wednesday, January 08, 2014 2:06 AM