Hi,
I have RB750up ruterboard that was tried to upgrade from 6.19 to new one. Now all leds are ON (with light) and network cable not indicate when is put on switch. I tried to access router with netinstall, but when I hold reset button before put on power there is no change on leds. They are always ON and not stop lighting. They are not blinking. I wired Tx and Rx and GND pins on Routerboard with serial cable but for now nothing happend. Could someone give me an idea what to do ?

With Regards

Someone tried to upgrade it with winbox to 6,38 version.

HI
Does anybody read this post ?

This us maybe because we are not Mikrotik support. You should contact Mikrotik directly for support on your problem.

10x