: In Settings > System > Developer Options , toggle on USB Debugging .
If you entered this mode by mistake, simply hold the for about 10–15 seconds until the device vibrates and restarts normally to the Android OS. Fastboot Mode OPPO A74 - HardReset.info how+to+open+fastboot+mode+on+oppo+a74+best
: Go to Settings > About Phone and tap Build Number 7 times to enable Developer Options . : In Settings > System > Developer Options