Please read this thread to get the fix: https://forum.openwrt.org/t/help-archer-c50-v1-bricked/3848/30 This is the only way. Rgds.

shaquille19 wrote Model : Archer C50Hardware Version : Firmware Version : ISP : I think I have a faulty unit. 2.4 GHz band is working fine but I can't detect 5GHz band with my Xiaomi Redmi Note 3...