topic AP-6521e Kernel Panic - not syncing: Unknown NAND in ExtremeWireless (WiNG)

AP-6521e Kernel Panic - not syncing: Unknown NAND

Radosław_Drygał — Thu, 22 Nov 2018 22:22:00 GMT

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?

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

Ondrej_Lepa — Thu, 22 Nov 2018 22:44:00 GMT

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

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

KK — Thu, 22 Nov 2018 22:48:00 GMT

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.