Phone freezes at blue screen: Nokia Lumia 521

    Troubleshoot or learn more about the device attempting to boot up and freezing at a blue screen. The phone has experienced a crash, causing the phone to get stuck at the blue screen. This issue is planned to be resolved in a future software update.

    To fix this issue:

    1. If there is an SD card inserted in the device, remove it.
    2. Reset the phone using the hardware keys.
    3. If necessary, replace the SD card.