Ensure your battery is charged above 50% and back up any accessible data, as flashing will erase everything.
How do you know if your problem is software-related? If you are experiencing any of the following issues, a fresh flash might be the solution. Firmware ZTE Blade L220
Extract the downloaded USB driver package on your PC. Run the setup application ( .exe ) corresponding to your Windows architecture (x86 or x64) and follow the on-screen prompts to complete installation. Step 2: Extract the Tools and Firmware Ensure your battery is charged above 50% and