Select . If a new version is available, follow the on-screen prompts to download and install it.
The safest way to ensure your firmware is "fixed" with the latest patches is through the built-in system update tool: Open the app. zte blade v40 design firmware fixed
If your phone is "bricked" (unresponsive) or stuck in a boot loop, you may need to manually flash the stock ROM. How to update the system? - Support Select
: Protects your device against known unauthorized access vulnerabilities. zte blade v40 design firmware fixed