This is the safest method. Go to Settings . Navigate to System > About phone > System updates . Tap Check for Updates .
: Ensure your battery is charged above 30% and you are connected to a stable Wi-Fi network. Access Settings : Open the Settings app on your phone. Firmware TCL 502
TCL generally maintains security updates for at least following a device's release. These updates patch vulnerabilities and often improve the "snappiness" of the user interface. This is the safest method
Have you successfully updated your TCL 502? Share your build number and experience in the comments below (or on your local TCL forum). Safe updating! Tap Check for Updates
• The update is available via OTA (Over-The-Air). • Connect to a stable Wi-Fi network before downloading. • Ensure your device has at least 50% battery life or is connected to a charger. • The device will restart automatically after the installation is complete.