Enable Developer Options → OEM Unlocking → Fastboot → fastboot oem unlock

If you have confirmed your device supports unlocking, the general process is as follows:

The safest way is to use official software provided by OPPO Global. Download and install on your PC. Connect your OPPO A5 via USB.

: You generally need a tool like UnlockTool or SP Flash Tool (for MediaTek models like the A5s CPH1909).

Downloading the correct for your specific hardware variant. Booting the phone into EDL (Emergency Download) Mode .

Oppo A5 Convert Global Upd

Enable Developer Options → OEM Unlocking → Fastboot → fastboot oem unlock

If you have confirmed your device supports unlocking, the general process is as follows: oppo a5 convert global

The safest way is to use official software provided by OPPO Global. Download and install on your PC. Connect your OPPO A5 via USB. Enable Developer Options → OEM Unlocking → Fastboot

: You generally need a tool like UnlockTool or SP Flash Tool (for MediaTek models like the A5s CPH1909). oppo a5 convert global

Downloading the correct for your specific hardware variant. Booting the phone into EDL (Emergency Download) Mode .