For most users, updating via OTA is the only method required.
Steps:
Troubleshooting OTA Failures:
The ZTE Blade V40 Smart launched with Android 12. As of 2025, no official Android 13 firmware exists. Flashing a cross-model ROM might brick the device. Firmware ZTE Blade V40 Smart
The ZTE Blade V40 Smart launched with Android 11 (MyOS 11). Later updates may have Android 12 or 13. Check your current build number (e.g., ZTE_9040_V1.0.0_GLS) before searching online. For most users, updating via OTA is the only method required
Warning: Firmware for ZTE Blade V40 (non-Smart) or V40 Pro is not compatible with the V40 Smart. Always download files labeled explicitly as "Blade V40 Smart." Troubleshooting OTA Failures: