I seen in forum always user posting to BB Section about z10 hang on logo , Red light , blocked password Etc problem . So let's me explain here about these problem and solution . Kindly next time before post fellow my solution
Update With BB Link/Autoloader :
You can update your phone...
Hi friends tested Solution
BlackBerry 10 smartphone does not load, immediately after powering on a logo is displayed on the screen indicating that the device should be connected to a computer with a USB cable.
To recover the BlackBerry 10 smartphone complete the following...
tested 4 times to bb Z10
1.if you fail to update with blackberry link software
2.f you fail to update with blackberry desktop software
3.if bb link says no update available
4.if sudden stop downloding update
5.if update drop on 50,60,80%
6.if blackberry link says check your internet connection...