The is a beast of a router, but its soul is the firmware. Whether you stick with a carrier-locked, band-limited official version, flash a community-unlocked mod, or take the plunge into OpenWRT, the key is preparation . Always identify your hardware revision, always backup your original firmware, and never, ever disconnect power during a flash.
Would you like a practical guide on how to flash OpenWrt on the ZTE MF286 next? Zte Mf286 Firmware