OpenWrt installation on Archer C59 v1 via TFTP

I'm lost here.

I flashed my Archer C59 via TFTP. I got a communication with the router. The log of the tftp software said the transfer of the tp_update.bin file was completed. But the router stay on the stock firmware.
What i'a missing here ???

Which version of the c59 is it?

This is the CA v1