For enthusiasts, developers, and troubleshooters, Fastboot Mode (sometimes called "Download Mode" on Oppo devices) is a powerful tool. It allows you to flash custom recoveries, unlock the bootloader, or repair firmware issues directly from your PC.
It works 100% of the time regardless of software state (bricked, bootloop, or normal). The ADB method is faster for advanced users, but only if USB debugging was pre-enabled. how+to+open+fastboot+mode+on+oppo+a74+best
Before we dive into the process, make sure you have the following: The Complete Guide to Fastboot Mode on the
Alternative Method