Flash Oppo A57 Via Sd Card Work Portable (Chrome)
Step 4 — enter recovery or local update mode Method A — From system (if device boots)
: Download the correct firmware for your specific model (e.g., CPH1701) and copy the flash oppo a57 via sd card work
The update process will begin. Do touch the phone during this time; it may take several minutes. Step 4 — enter recovery or local update