Upgrade Firmware TL-WR740N v4 to TL-WR743ND v2

Gargoyle TL-WR740 v4 http://www.gargoyle-router.com/downloads/images/ar71xx/gargoyle_1.8.0-ar71xx-generic-tl-wr740n-v4-squashfs-factory.bin Firmware TL-WR743ND v2 http://www.tp-link.com/resources/software/TL-WR743ND_V2_131129.zip PuTTY https://ipras-net.top/2016/01/download-putty.html