Oppo A57 Firmware Download
this is the link to download the oppo a57 firmware file. if you have any issue in downloading the oppo a57 firmware file, then please comment in the comment section. if you have any suggestion, then you can also contact us.
oppo a57 firmware download
now, prepare your oppo a57 for flashing and get ready to follow the instructions given below. you will have to do certain actions such as download usb drivers, download oppo a57 firmware and download oppo a57 flash tool. read the complete step by step guide to flash oppo a57 officially.
after downloading the files, you need to extract them to the desktop by extracting the zip file. after extracting, you will get a folder named oppo a57. copy the two files (opp_a57_bricked_fix.bat and opp_a57_bricked_fix.sh) to the oppo a57 folder. don't forget to extract the firmware file first and then paste the files in the same folder.
6. now, you need to choose the write mode for the oppo a57. you can choose either erase only or erase and update. please note that the erase only option will remove all the existing data in the oppo a57 mobile and you have to select erase and update option if you want to keep the existing data on the device. the write mode option does not delete any data. if you are choosing erase only, then you have to select the update only option to update only the firmware without updating the existing data.