Oppo phones always fail to download.

This problem should be caused by system failure. It is recommended that you back up important data, download the official firmware of this machine and enter the engineering mode. Brush tutorial: back up important data first! Then the mobile phone is connected to the computer and the downloaded firmware is stored in the mobile phone. Then press and hold the power button for ten seconds to enter the shutdown state, and then press and hold the power button and the volume reduction button at the same time to enter the recoveryr mode. Select the power key through the volume key to confirm and double-click Clear (restore factory settings and clean up the cache to erase data/factory reset and erase the cache partition), and select the firmware package to restart after the installation is successful. If there is a new version, you can also directly connect to WIFI or other networks on your mobile phone, and then enter "System Upgrade" to upgrade OTA.

Backup tutorial: telephone, SMS, photos, notes, etc. Backups can be made through nearme cloud service. Software can be backed up through the software store.

Please forgive the inconvenience!