toy2, It seems that either I or you do not understand something. Let's go step by step:
1 downloads, online openvrt firmware word factory
2 loading through web face
3 ??
4 I see a message about an incorrect file format
through tftp
1 Rename the file with the word factory in ArcherC7v5_tp_recovery (say it is not a typo, that is not the C7 A7)
2 In the properties of the network cards have 192.168.0.66 IP mask 255.255.255.0, run tftp
3 cut down the router, connect the cable, turn on the router to reset clamped at 10sec
4 In the console tftp see that the router firmware download
5 He reboots and presents to me is a little boring factory firmware