Many Inskam "work" cameras use universal firmware. Try the ZIP labeled "General Work Camera Series V2.1". If that fails, contact Inskam support directly via the email listed on their site – do not use third-party forums.
Email: support@inskam.com Include your camera model number (found under the battery or in the settings menu). Request the "Work Camera software ZIP." They usually respond within 48 hours. www inskamcom download work camerazip
First, ensure you are on the official website: Many Inskam "work" cameras use universal firmware