I bricked my router , wanted to test other firmware , had DD-wrt installed.

I did "erase linux" then "reboot".

And router rebooted ready to upgrade firmware via tftp.

BUT ... any firmware ( including original ) don't wanna flash.

Upload to router is always successful but router don't flashes it.

I tried lot of firmwares , sometimes green light blinking is always same after fw was sent and sometimes green light stops blinking for few seconds and starts blinking again in same speed...

I don't have serial so can't flash via it.

Any idea ?