If you continue to experience issues after a hard reset, contact OPPO Customer Support or visit an authorized service center – the F5’s hardware may require professional attention.
⚠️ On some OPPO F5 variants, the recovery screen may be in Chinese. You can identify “Wipe data” by its icon (trash bin) or by recognizing 清除数据. If unsure, look for English option at boot or follow video guides. How to Hard Reset OPPO F5