Upgrade & User Guide

Get the latest ZTEOS updates and obtain user guide for your devices.

BLADE A521


Please choose your country or region. Availability may vary based on country/region.


  • ZTE BLADE A521 Upgrade Guide(Italy)

    Download
  • BLADE A521 SD card software package(356740B0672TIM_IT_BA521_V1.4)

    Download
  • BLADE A521 SD card software package

    Download
  • ZTE BLADE A521 Upgrade Guide (Through SD Card)

    Download