We have shared the official ZTE Blade A520 Stock Firmware ROM (Flash File) on this page. The Stock Firmware comes in a zip package that contains the original Firmware, Flash Tool, Driver, and How-to Flash manual.
ZTE Blade A520 Stock Firmware (Flash File)
You can use the ZTE Firmware to Upgrade or Downgrade the Operating System (OS) of the device, Unlock or remove the device’s protection, Fix the IMEI-related issue, or Fix the bootloop problem.
File Name: ZTE_Blade_A520_MT6737M_V1.0.0B12_03082017.zip
File Size: 2 GB
Flash Tool: SP Flash Tool for Windows | SP Flash Tool for Linux
How to Flash (install): Follow Tutorial
Mirror 1 (Free)Mirror 2 (Paid)
Readme Once:
[*] Caution: We do NOT recommend you to Flash the preloader.bin, as it may brick the device. Therefore, we recommend you Untick the Preloader option while flashing or installing the device’s firmware.
[*] Flash Tool: If you are looking for the latest version of SP Flash Tool, then head over to the SP Flash Tool for Windows or SP Flash Tool for Linux page.
[*] Backup: We recommend taking a backup of your data before flashing or installing the Stock Firmware (ROM), as flashing the firmware will wipe the data from the device.
[*] Credits: The device manufacturer initially released the above firmware, and it is in its original state. We have scanned the firmware against virus/malware using Norton AntiVirus Plus.