1. Windows Central Question's Avatar
    I tried to upgrade 820 to windows 10 and used windows phone internal 1.2 to unlock bootloader as per instruction in some forum. Now that phone is dead and windows 10 Pc does not identify the phone and gives unknown USB deviCe error. How do I get it back to work. Tried all steps from various forums.
    Vishnu YV likes this.
    08-31-2016 07:46 AM
  2. Indistinguishable's Avatar
    I tried to upgrade 820 to windows 10 and used windows phone internal 1.2 to unlock bootloader as per instruction in some forum. Now that phone is dead and windows 10 Pc does not identify the phone and gives unknown USB deviCe error. How do I get it back to work. Tried all steps from various forums.
    Hi there. That's a shame that it bricked up on you. This isn't the first instance i've seen of it happening from bootloading.

    Have you tried the WDRT? If that doesn't work, you may be out of luck.

    Use the Windows Device Recovery Tool to reset your device. This will take you back to the OS version which originally came with the phone. So for phones that did not ship with W10M, the WDRT will take it back to 8.0. If the phone was shipped with W10M, the tool will take it back to a version of W10M
    Follow this link for instructions and download: http://forums.windowscentral.com/e?l...token=l8b2iCs6

    If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join Windows Central.
  3. Maurizio Troso's Avatar
    I tried to upgrade 820 to windows 10 and used windows phone internal 1.2 to unlock bootloader as per instruction in some forum. Now that phone is dead and windows 10 Pc does not identify the phone and gives unknown USB deviCe error. How do I get it back to work. Tried all steps from various forums.
    Did you tried the hard reset key sequence?
    08-31-2016 07:49 AM
  4. Indistinguishable's Avatar
    I tried to upgrade 820 to windows 10 and used windows phone internal 1.2 to unlock bootloader as per instruction in some forum. Now that phone is dead and windows 10 Pc does not identify the phone and gives unknown USB deviCe error. How do I get it back to work. Tried all steps from various forums.
    Hi there. That's a shame that it bricked up on you. This isn't the first instance i've seen of it happening from bootloading.

    Have you tried the WDRT? If that doesn't work, you may be out of luck.

    Use the Windows Device Recovery Tool to reset your device. This will take you back to the OS version which originally came with the phone. So for phones that did not ship with W10M, the WDRT will take it back to 8.0. If the phone was shipped with W10M, the tool will take it back to a version of W10M
    Follow this link for instructions and download: http://forums.windowscentral.com/e?l...token=l8b2iCs6

    If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join Windows Central.
    Chintan Gohel likes this.
    08-31-2016 07:50 AM
  5. Ajay Prabhu's Avatar
    Guess it's not happening. Tried but don't see anything happening on screen
    09-01-2016 06:34 AM
  6. Ajay Prabhu's Avatar
    It stays waiting to detect device. Seems like PC is not recognizing it as external device. Can Nokia care help in this case.
    09-01-2016 06:35 AM
  7. Chintan Gohel's Avatar
    It stays waiting to detect device. Seems like PC is not recognizing it as external device. Can Nokia care help in this case.
    possibly but they would charge you for it - especially since you hacked the device to try to use builds not meant for that phone
    09-01-2016 07:43 AM

Similar Threads

  1. Lumia 950 XL Lots of my Contacts have disappeared.
    By Windows Central Question in forum Ask a Question
    Replies: 3
    Last Post: 09-25-2016, 02:33 PM
  2. Replies: 2
    Last Post: 09-24-2016, 07:04 AM
  3. My microsoft Lumia 535 phone wont charge
    By Windows Central Question in forum Ask a Question
    Replies: 2
    Last Post: 08-31-2016, 02:11 PM
  4. How to back up on a 950 Lumia using a gmail account
    By Windows Central Question in forum Ask a Question
    Replies: 1
    Last Post: 08-31-2016, 06:53 AM
  5. how do i transfer my contact in my lumia to an android phone
    By Windows Central Question in forum Ask a Question
    Replies: 2
    Last Post: 08-31-2016, 01:59 AM
LINK TO POST COPIED TO CLIPBOARD