ZH&K Oleg MT6572 Firmware ROM (flash file). Download the latest Stock ROM for ZH&K Oleg. Operating system optimization, hang logo fix , bootloop fix , and unbrick,…Besides, firmware also help you to remove password and bypass FRP….
Download firmware for ZH&K Oleg:
ZH&K_Oleg_MT6572_17012015_4.4.2 | AFH