The v50746en firmware package represents Tenda’s ongoing effort to stabilize their budget-friendly AC router lineup. By following the hardwired, step-by-step process outlined above, you can complete this upgrade in under 10 minutes.
While "v50746en" is likely an internal manufacturer or batch code often found on physical labels, the most useful feature for a Tenda upgrade installation is the tool. v50746en tenda upgrade install
Prerequisites
v50746en string is your safety net. It corresponds to a specific hardware ID. If you are "cross-flashing" (installing OpenWrt or DD-WRT) or unbricking a router via TFTP, this specific string ensures you are matching the software to the hardware ID (HWID).