If you can share the (e.g., from dmidecode or the system sticker), I’d be glad to help locate the official download page.
: You can contact CP PLUS technical support at 8800952952 or submit a request through their Official Support Form to receive the exact .bin or .zip file for your hardware version. cpunr4k2161v2 firmware download link
Ensure the file is unzipped before uploading. If you can share the (e