Before attempting any update, you must confirm compatibility.
Tip: Use a browser translator (like Google Translate) if you aren't fluent in Russian.
Finding clean, safe firmware is the hardest part. Avoid random Google Drive links from Facebook groups. Trusted sources include:
Based on the specific model number and the designation NWD , you are most likely referring to an aftermarket Android Head Unit (car stereo) based on the TS10 (Ten) platform (also known as the UIS7862 or UIS7862_8227L).