Thanks for your help, I managed to solve my problem.
I used 192.168.1.10 but I got into rescue mode twice before flashing. So, if anyone encounter the same problem, get into rescue mode, do not turn of physical button, hold reset, unplug energy and plug it back while still holding reset button...
Yes, that was the guide I initially used to flash the wrong merlin FW. Router enters properly in rescue mode, which in my ET12 model is confirmed by a steady purple LED light.
I tried fixin the IP to 192.168.1.10, 192.168.50.10, 168.254.233.10 and no luck...
Well, let me try to explain a little bit more... router works partially normal.
The problem is that:
1. As the firmware is from XT, there is no 6ghz option to use that band on the GUI. Other bands work properly. I can use it as router, bridge, AP, etc, except aimesh node.
2. I can't flash the...
So long story short, it was late at night and I flashed both my ET12 with EX12 latest merlin firmware.
I used both as aimesh nodes previously with latest stock firmware (axe16000 as main router) but wanted to run merlin on all nodes. I didn't notice the difference on FW version (dahhh, stupid...