Wlwn523n2 Firmware — Work

From the U-Boot prompt:

# Backup full flash nand read 0x80000000 0x0 0x800000 # Then serve via TFTP tftp 0x80000000 0x800000 full_backup.bin Alternative (if Linux is partially booting): wlwn523n2 firmware work

Using OpenOCD:

setenv bootcmd 'if nand read 0x80000000 0x200000 0x500000; then bootm; else nand read 0x80000000 0x800000 0x500000; bootm; fi' After your WLWN523N2 firmware work, if the system boots but behaves erratically, you need runtime debugging. Kernel Logs dmesg | grep -i wlwn523n2 cat /proc/interrupts # Check for radio interrupts Wireless Debugging iw dev wlan0 station dump iwconfig wlan0 cat /sys/kernel/debug/ieee80211/phy0/wlcore/stats Using GDB over Serial Compile your kernel with CONFIG_DEBUG_INFO , then: From the U-Boot prompt: # Backup full flash