Download and install the application from the first link provided.

Once the boot animation begins, remove your fingers, then put them back on the screen after a few seconds.

Getting K2001N NWD Firmware to Work: A Complete Guide The is the system software used in many Allwinner T3 Quad-Core Android car head units . Ensuring this firmware works correctly is essential for fixing common issues like app crashes, slow performance, or broken Apple CarPlay/Android Auto connections. How to Update and Make K2001N Firmware Work

Extract and copy the update.zip (and any associated script files) to the of the drive. Start the Update : Plug the drive into the head unit's USB port.