I--- Nwd K2501-t5- Update -
If successful, you will see a text-based menu (or a progress bar) indicating “Recovery mode v3.2.”
You can update your device either online (Over-the-Air) or manually via a USB drive. Method 1: Online Update (Recommended) Connect to Wi-Fi : Ensure the head unit has a stable internet connection. Navigate to Settings System Upgrade Check for Updates Online Upgrade . If a new version is available, click i--- Nwd K2501-t5- Update
: Navigate to the Google Chrome browser on your head unit. If successful, you will see a text-based menu
If your unit cannot find an update online, you often have to rely on community-shared firmware or manufacturer files: i--- Nwd K2501-t5- Update