Flashing Cisco AIR-AP1142N / AIR-LAP1142N
Upgrade, downgrade or crossflash from LAP to AP style firmware on Cisco APs with serial bootloader commands.
The following procedure will format the flash entirely, set up IP address for the bootloader, restart bootloader with newly set IP address, tftp transfer and unpack the image and finally boot up the image and do initial configuration (set onboard ethernet to DHCP).