Software Update error code: 0 - Finished successfully, waiting for reboot 1 - SW update file download failed 2 - Unpack failed, damaged or wrong format package 3 - Firmware digital signature check failed 4 - U-Boot digital signature check failed 5 - Firmware FLASH write failed 6 - U-Boot FLASH write failed 7 - Boot partition switch failed 8 - Board SKU is not supported for this firmware 9 - Can't read firmware version, upgrade is impossible 10 - Down-grade not supported for 802.11 driver 11 - Down-grade below 2.3.1 is not supported for AP Lite device 12 - Down-grade not supported for non SM TDD mode 13 - Down-grade below 2.4.2 not supported for Ironman/Ironland board type 14 - Down-grade below 2.5.0 not supported for AP WiFi 15 - Down-grade below 2.4.3 not supported for Reset Via Power Sequence 16 - Down-grade below 2.4.3 not supported for Particular Country Locked device 17 - Down-grade below 2.5.0 not supported for 2.5ms mode 18 - Down-grade below 2.5.2 not supported for Use MAC Address as EAP-TTLS Username 19 - Down-grade below 2.6.0 not supported for 5/10Mhz BW for WiFi & ePTP mode 20 - Down-grade below 2.6.0 not supported for Separate Management IP Port Forwarding 21 - General error. Device has no free memory 22 - General error code Device Allocation: AP, SM