I set up netctl config to static IP 192.168.0.66 for ethernet adapter
Installed tftp-hpa, started tftpd service
Put openwrt-19.07.0-ath79-generic-tplink_archer-a7-v5-squashfs-factory.bin renamed to ArcherC7v5_tp_recovery.bin into /srv/tftp directory
Connected router to laptop
Pressed reset button then turned router on and holding reset 5-7 seconds and waited ~150 seconds
And no result at all. I tried also connect Archer to laptop trough my old router with same effect. And I tried update to openwrt to web ui. Didn't work too.
I see in wireshark file request via tftp and data blocks transferring but router still has stock firmware
Did I something wrong? Or device just don't accept new firmware. Maybe I should change router to Archer C7 before it's too late.
I don't own that model. I have C7, so I can't be very specific about A7.
However, if you see in Wireshark that the router requested the file, and you also see it being transferred in tftp-hpa (or whatever TFTP server you would use), then it's difficult to know why the router isn't accepting the image without making a serial connection (which would void the warranty, so not a good idea if you are considering returning it).
I can't think of anything else, unless the following is a typo, and it was supposed to be A7 (but then I think it wouldn't have downloaded the file if the name was wrong?)