1. zeemoo's Avatar
    Hi all .... i have just start using the Balckberry 8820 at&t ... i have unlock it for pakistani Network ... now i am having problem of its OS ... Last day i have attach my blackberry with my computer for upgrade its OS through Blackberry Desktop manager .... i had tried to upgrade the software .... its take the backup of all of my data and after that its remove the OS from my blackberry to install new OS 8820M_PBr4.5.0_rel152_PL2.7.0.90_A4.5.0.110_AT&T any how ... during installation i have received a Fatal error ... and its stop installing .... still then i am unable to ON my blackberry .... its just a red light which blinking all the time .... i dont know what to do .... please hep me out .... i hope its not dead ....
    10-19-09 11:12 AM
  2. K1drobt's Avatar
    10-21-09 01:49 PM
  3. mj2077's Avatar
    Download OS and use deskmanager to install it.
    And you can google the detail process.
    11-02-09 07:52 AM
  4. xinzhengtu's Avatar
    I reinstalled the OS last week. First of all, I wiped the 8820. Next, the red light was light and the screen shown Error 507. Secondly, I reinstall the OS. Now it is working well. If I can help you contact me. MY SKYPE ID:xinzhengtu Email:xinzhengtu@gmail.com
    11-10-09 12:28 AM