If your phone is bricked (stuck on logo) or you are upgrading via PC, prepare:

  • Fastboot: For devices with unlocked bootloader and fastboot support; used to flash boot, system, recovery images individually.
  • Recovery (TWRP): Boot into custom recovery and install ZIP firmware or ROM packages; useful for installing custom ROMs and GApps.
  • Official SD-card update: Some official firmwares update via signed update.zip placed on SD card and applied via stock recovery.
  • When searching for Firmware ZTE Blade A34, you will encounter two primary categories:

    MediaTek devices require a “PreLoader USB VCOM” driver. Disable Windows driver signature enforcement (Shift + Restart > Troubleshoot > Startup Settings). Then install the driver.

    If you updated officially and the battery drains fast: