ExtremeWireless (WiNG)

  • 1.  AP-6521e Kernel Panic - not syncing: Unknown NAND

    Posted 11-22-2018 14:22
    I recived Zebra AP-6521e from customer, saying it's not working at all. I connected console port, ad it gives me Kernel Panic - not syncing: Unknown NAND, and it's in boot loop. When I hit ESC when loading runtime image I get ncap> prompt. Can I do something with it?





  • 2.  RE: AP-6521e Kernel Panic - not syncing: Unknown NAND

    Posted 11-22-2018 14:44
    Hi Radoslaw,

    this seems like flash / fw got corrupt.
    You won't be able to bypass ncap> loader unless the AP gets reflashed

    Please RMA this device as per this article

    Submit RMA via New Support Portal

    Regards,
    Ondrej


  • 3.  RE: AP-6521e Kernel Panic - not syncing: Unknown NAND

    Posted 11-22-2018 14:48
    Hi, As you may know, WiNG store two OS images. Based on log, it seems loading from both image 1 and 2 are failed. If I am not misstaken, NAND is the place firmware is stored. Since NAND shows error and can't boot up from both FW images, my conclusion is RMA.