Sign in with your Samsung account if prompted. This step is critical; without a valid certificate, the TPK will fail to install. In the Device Manager , right-click on your connected watch. Select Install App . Browse and select the WhatsApp(World Technique).tpk file.
Wait for the "Success" notification. The app should now appear in your watch's app drawer. Download Whatsapp(World Technique) tpk
Go to and set it to Always On .
: Ensure your certificate profile is set as the "Default" in Certificate Manager before attempting the installation. Sign in with your Samsung account if prompted
Click the icon (looks like a scan icon). Click + to add a device: Name : Any name (e.g., "MyWatch"). IP Address : The IP address you noted from your watch. Port : Leave as 26101. without a valid certificate