What are the immobilizer module and ring removal steps?

Dears, do you have some schematic, or step-by-step instructions to reach the immobilizer module and antenna ring on the ignition switch?

My problem is not recognized code, after starting, red diode starts blinking fast. After that I must do the reprogram procedure with 4times on-off until the diode continuously light, and pressing any button of the key while diode turns off.

The problem happened twice in two years period, but now it happened 3-4 times in month period, until these days that happens almost on every starting :(

I wanted to inspect the state of wirings and connections of those components (visually), but with no luck.

I found only 3 screws fixing the lower plastic cover behind the steering wheel, and after unscrewing them, it does not even get loosened. Tried to use forcing separation with a plastic tool between the lower and upper cover, but again nothing.

Thanks in advance! Best regards from North Macedonia