Performing a hard reset on an OPPO F5 restores the device to its original factory settings, effectively erasing all personal data, including contacts, photos, and apps. This process is typically used to resolve software glitches, bypass a forgotten pattern lock, or prepare the phone for resale.
After reset, the phone asks for a previous Google account, but you don’t know the password. How to Hard Reset OPPO F5
Select "Wipe data and cache" .
The OPPO F5 sat on the bedside table like a small black stone, its glass face reflecting a sliver of the lamp’s warm light. To Nima it had been a companion for three years — a map through cities, a witness to late-night texts, a vault of photos she couldn’t quite bring herself to delete. Lately it had begun to groan: apps froze mid-sentence, the camera shutter lagged behind her smile, and once, in the middle of a thunderstorm, it rebooted and never quite remembered which alarms she preferred. She tried the usual coaxing: force-closing apps, uninstalling the bloated things she never used, backing up what she could. Yet the glitches persisted like a cold she couldn’t shake. Performing a hard reset on an OPPO F5
Boot into Recovery Mode by pressing and holding the Power Button and the Volume Down Button simultaneously. Release them once the OPPO logo flashes on the screen. Select "Wipe data and cache"