Download from vendor
wget http://vendor.com/firmware/update.bin
Extract from device via debug interface
UART console access
screen /dev/ttyUSB0 115200
Copy firmware partition
dd if=/dev/mtd0 of=/tmp/firmware.bin
Extract via network protocols
TFTP during boot
HTTP/FTP from device web interface
### Hardware Methods
UART access - Serial console connection JTAG/SWD - Debug interface for memory access SPI flash dump - Direct chip reading NAND/NOR dump
[Description truncada. Veja o README completo no GitHub.]