If searching for ZTE Blade A570 stock ROM / flash file for your smartphone, download from the link below.
Please follow the instructions provided to flash the firmware with ease. Notify me if facing any difficulty with flashing process.
If you have any problems downloading the firmware (broken link, for instance) please post in comments section for link to be fixed and updated.
Device - Version / Build - Link - Mirror
ZTE A570 - 2016010816252181 - Download - Download