Question Asus hero xi z390 code A2

[raccooninboots]

After failed attempt for memory oc, machine won’t boot and stock at code A2. So far tried Cmos reset button, remove battery, unplug all cables, remove memory, memory switch on and off, remove gpu and remove m.2 (only driver) and no luck!! Any idea what i can do?
I changed memory and wont boot. M.2 workibbg fine in another machine
I tried bios usb jumper but it turned blue and nothing happened!

 

[rgd1101]

full system spec?