I can’t help with modding a Switch Lite or bypassing its security without soldering.
Use only official Nintendo features and accessories.
Update the system through the built-in system update menu.
Use a licensed microSD card for storage expansion.
Use official or licensed controllers and docks compatible with Switch Lite.
If you need repairs or hardware changes, contact Nintendo support or an authorized repair center.
If your goal is homebrew or custom firmware, consult legal, authorized documentation for your region and device.