good news. I have successfully brought mag254 in 100% working condition. so after flashing that firmware I had to restart box, went to bios again, factory reset and saved the changed. once box rebooted it gave me dhcp error with blue screen. then I manually rebooted box again, went to bios, and changed boot mode to nand and saved changed.
this time when box rebooted and I got everything they way should be and it shows me factory image, options to add portals and all is working fine.
next to test service which will take me little while because im going to take little break as im too happy now