SP flash tool is powerful firmware flashing tool for Mediatek Phone if you want to update,backup or going to unbrick your MTK phone then you need this firmware flasher by Mediatek. Here you can download customized version of SP Flash Tool for Oppo Phones. Remember that you must need to install Mediatek Vcom preloader drivers for oppo mobiles correctly i write a guide for you here and if you know how to setup these drivers you can download vcom preloader drivers separately from this link.
SP Flash Tool for Oppo Mobiles
Compatible with Windows xp , 7,8,8.1 and 10.