Binwalk, Ghidra, strings , nc , UART adapter (FT232), QMI utils.
Best approach
Leo’s laptop screen changed. A map of the continent appeared, overlaid with glowing nodes—seventeen active relays, yes, but also hundreds of home routers, industrial gateways, even vehicle telematics units. All ZL-CPE5G. All now part of Overwatch . Zl-cpe5g Firmware
Have you updated your ZL-CPE5G recently? Let us know in the comments if you noticed any speed improvements! Binwalk, Ghidra, strings , nc , UART adapter
printenv bootargs=console=ttyS0,115200 root=/dev/mtdblock5 rw bootcmd=nboot kernel; bootm UART adapter (FT232)